当前位置:首页 >> 电力/水利 >>

ABB


Technical catalogue

Emax
Low voltage air circuit-breakers

1SDC200006D0204

The new Emax air circuit-breakers are the result of ABB SACE’s constant commitment to look for new solutions, and of the know-how it has developed over the years. This is an incredibly innovative high quality circuit-breakers range, designed to satisfy all application requirements. The innovation of the new Emax is really outstanding from all points of view: completely re-engineered releases fitted with latest generation electronics, improved performances with the same dimensions and new applications to fulfil the latest market needs. The new electronics open a window on a world of extraordinary solutions, with connectivity options never before seen in the market. Discover the great advantages of ABB SACE’s new Emax. The evolution has been going on since 1955.

Continuing the tradition of ABB SACE, the new Emax range offers performances at the top of its category. The Emax range offers you a great advantage: with the increased performances, you can use the smaller circuit-breaker frames, obtaining considerable savings both in economic terms and in physical space within the switchgear. Emax E1 now offers current ratings up to 1600A, whilst Emax E3 is enhanced by version V with top of the range performances. Always aware of the rapid changes in the market, ABB SACE has made some specific versions to cover new applications and simplify retrofitting operations.

The new Emax range shines like a light from within: the new generation of protection releases is fitted with the latest advances in electronics, offering individual bespoke solutions for control and protection. The new releases, which are amazingly versatile and simple to use, offer important innovations, such as the brand-new intuitive operator interface allowing complete control of the system with just a few simple keystrokes. Furthermore, there are new protections, new alarms and connection to handheld and laptop PCs using Bluetooth technology. The reengineered hardware architecture allows flexible and precise configuration. With the new Emax it is no longer necessary to completely replace the release - simply add the module which satisfies your requirements: a great advantage, both in terms of flexibility and customisation.

The new Emax have received innumerable international certifications and approval by the major shipping registers.

Careful selection of materials, meticulous assembly and a rigorous testing stage make the new Emax an extremely reliable and sturdy product, able to withstand high dynamic and thermal stresses for longer than any other circuit-breaker in its category. With the new standardised system of accessories studied and made for the new Emax, work becomes easier, convenient, safe and rapid. Furthermore, ABB SACE puts a highly specialised and rapid customer assistance service at your disposal. The new Emax give you that pleasant feeling of security which only such a reliable product is able to do.

Main characteristics

1
Contents
Overview of the SACE Emax family Fields of application ............................................................................................................. 1/2

Construction characteristics Structure of the circuit-breakers .......................................................................................... 1/4 Operating mechanism .......................................................................................................... 1/5 Operating and signalling parts ............................................................................................ 1/6 Fixed parts of withdrawable circuit-breakers ...................................................................... 1/7 Utilization category ............................................................................................................... 1/8

Versions and connections ................................................................................................ 1/9

Electronic releases General characteristics ...................................................................................................... 1/10 Versions available ................................................................................................................ 1/12 Rating plugs ......................................................................................................................... 1/13

Compliance with Standards Standards, approvals and certifications .............................................................................. 1/14 A design dedicated to Quality and respect for the environment ........................................ 1/15

ABB SACE

1/1

Overview of the SACE Emax family
Fields of application

E1
Automatic circuit-breakers Poles 4p c.-b neutral current-carrying capacity Iu (40 °C) [No.] [% Iu] [A] E1B E1N E2B E2N 3-4 100 800-1000- 800-10001250-1600 1250-1600 690 42 42 42 36 690 50 50 50 36

E2
E2S E2L 3-4 100 1600-2000 1000-1250- 800-1000- 1250-1600 1600-2000 1250-16002000 690 690 690 690 42 65 85 130 42 65 85 130 42 55 65 10 42 42 50 –

1

Ue Icu Ics Icw

(220...415V) (220...415V) (1s) (3s)

[V~] [kA] [kA] [kA] [kA]

Automatic circuit-breakers with full-size neutral conductor Poles 4p c.-b Iu Ue Icu Ics Icw neutral current-carrying capacity (40 °C) (220...415V) (220...415V) (1s) (3s) [No.] [% Iu] [A] [V~] [kA] [kA] [kA] [kA] Standard version Standard version

Switch-disconnectors Poles Iu Ue Icw Icm (40 °C) [No.] [A] [V~] [kA] [kA] [kA]

E1B/MS 3-4 800-10001250-1600 690 42 36 88.2

E1N/MS 3-4 800-10001250-1600 690 50 36 105

E2B/MS

E2N/MS

E2S/MS

(1s) (3s) (220...440V)

3-4 3-4 3-4 1600-2000 1000-1250- 1000-12501600-2000 1600-2000 690 690 690 42 55 65 42 42 42 88.2 121 143 E2B/E E2N/E

Automatic circuit-breakers for applications up to 1150 V AC Poles Iu Ue Icu Ics Icw (40 °C) [No.] [A] [V~] [kA] [kA] [kA]

(1150V) (1150V) (1s)

3-4 3-4 1600-2000 1250-16002000 1150 1150 20 30 20 30 20 30 E2B/E MS E2N/E MS

Switch-disconnectors for applications up to 1150 V AC Poles Iu Ue Icw Icm (40 °C) [No.] [A] [V~] [kA] [kA]

(1s) (1000V)

3-4 3-4 1600-2000 1250-16002000 1150 1150 20 30 40 63 E2N/E MS 3-4 1250-1600-2000 750 (3p)-1000(4p) 25 52.5 52.5 E2 CS 2000 E2 MTP 2000 E2 MT 2000

Switch-disconnectors for applications up to 1000 V DC E1B/E MS Poles Iu Ue Icw Icm (40 °C) (1s) (750V) (1000V) [No.] [A] [V-] [kA] [kA] [kA] 3-4 800-1250 750 (3p)-1000(4p) 20 42 42 E1 CS (40 °C) [A] 1250 E1 MTP 1250 E1 MT (40 °C) [A] 1250

Sectionalizing truck Iu

Earthing switch with making capacity Iu Earthing truck Iu (40 °C) [A]

(*) The performance at 1000V is 50kA.

1/2

ABB SACE

E3
E3N E3S E3H 3-4 100 800-1000-12501600-20002500-3200 690 100 85 75 65 E3V E3L E4S

E4
E4H 3-4 50 800-12501600-20002500-3200 690 130 100 85 65 40005000-6300 690 100 100 100 85 E6H/f E4V E6H

E6
E6V 3-4 50 3200-40005000-6300 690 150 125 100 85

2500-3200 690 65 65 65 65

1000-12501600-20002500-3200 690 75 75 75 65

2000-2500 690 130 130 15 –

4000 690 75 75 75 75 E4S/f

3200-4000 690 100 100 100 75 E4H/f 4 100 3200-4000 690 100 100 85 75

3200-4000 690 150 150 100 75

1

Standard version

4 100 4000 690 80 80 80 75 E3V/MS 3-4 800-1250-16002000-2500-3200 690 85 65 187 E4S/MS 3-4 4000 690 75 75 165

4 100 4000-5000-6300 690 100 100 100 100 E4H/f MS 4 E6H/MS 3-4 4000-50006300 690 100 85 220 E6H/E 3-4 4000-5000 6300 1150 65 65 65 E6H/E MS 3-4 4000-5000 6300 1150 65 143 E6H/E MS 3-4 4000-5000-6300 750 (3p) - 1000 (4p) 65 143 143 E6 CS 6300 E6 MTP 6300 E6 MT 6300 E6H/f MS 4 4000-50006300 690 100 85 220

E3N/MS 3-4 2500-3200 690 65 65 143

E3S/MS 3-4 1000-1250-16002000-2500-3200 690 75 65 165 E3H/E 3-4 1250-1600-20002500-3200 1150 30 (*) 30 (*) 30 (*) E3H/E MS 3-4 1250-1600-20002500-3200 1150 50 105 E3H/E MS 3-4 1250-1600-2000-2500-3200 750 (3p)-1000(4p) 40 105 105 E3 CS 3200 E3 MTP 3200 E3 MT 3200

E4S/f MS E4H/MS 4 4000 690 75 75 165 3-4

3200-4000 3200-4000 690 690 100 85 75 75 220 187 E4H/E 3-4 3200-4000 1150 65 65 65 E4H/E MS 3-4 3200-4000 1150 65 143 E4H/E MS

3-4 3200-4000 750 (3p) - 1000 (4p) 65 143 143 E4 CS 4000 E4 MTP 4000 E4 MT 4000

ABB SACE

1/3

Construction characteristics
Structure of the circuit-breakers
The sheet steel structure of the Emax air circuit-breaker is extremely compact, considerably reducing overall dimensions. Safety is improved by using double insulation of the live parts and total segregation between phases. The sizes have the same height and depth for all the circuitbreakers in each version. The depth of the withdrawable version is suitable for installation in switchgear 500 mm deep. The width of 324 mm (up to 2000 A) in the withdrawable version allows the apparatus to be used in switchgear compartments 400 mm wide. Their compact dimensions also mean they can replace air circuit-breakers of any size from earlier series.

1

1SDC200018F0001

1/4

ABB SACE

1SDC200019F0001

Construction characteristics
Operating mechanism
The operating mechanism is of the stored energy type, operated using pre-charged springs. The springs are charged manually by operating the front lever or using a geared motor, supplied on request. The opening springs are charged automatically during the closing operation. With the operating mechanism fitted with shunt closing and opening releases and the geared motor for charging the springs, the circuit-breaker can be operated by remote control and, if required, co-ordinated by a supervision and control system.

1

? OPENING ? CLOSING

? OPENING ? OPENING ? CLOSING

1SDC200020F0001

The following operating cycles are possible without recharging the springs: ? starting with the circuit-breaker open (0) and the springs charged: closing-opening ? starting with the circuit-breaker closed (I) and the springs charged: opening-closing-opening. The same operating mechanism is used for the entire series and is fitted with a mechanical and electrical anti-pumping device.

ABB SACE

1/5

1SDC200021F0001

Construction characteristics
Operating and signalling parts

Fixed version

Caption
1 2 Trademark and size of circuitbreaker SACE PR121, PR122 or PR123 release Pushbutton for manual opening Pushbutton for manual closing Lever to manually charge closing springs Electrical rating plate Mechanical device to signal circuit-breaker open “O” and closed “I” Signal for springs charged or discharged Mechanical signalling of overcurrent releases tripped Key lock in open position Key lock and padlock in rackedin/racked-out position (for withdrawable version only) Racking-in/out device (for withdrawable version only) Terminal box (for fixed version only) Sliding contacts (for withdrawable version only) Circuit-breaker position indicator: racked-in/ test isolated /racked-out / connected/test isolated/disconnected (for withdrawable version only)

1
3 1 9 5 7

13

3 4

2
5

4

6 7

8 9 10 11

8

12

6
1SDC200032F0001

13 14 15

Withdrawable version

Note:
?Racked-in? refers to the position in which both the power contacts and auxiliary contacts are connected; ?racked-out? is the position in which both the power contacts and auxiliary contacts are disconnected; ?test isolated? is the position in which the power contacts are disconnected, whereas the auxiliary contacts are connected.

14

1SDC200033F0001

2 3 1 9 10 5 8 7 6 15 11 12 4

1/6

ABB SACE

Construction characteristics
Fixed parts of withdrawable circuit-breakers
The fixed parts of withdrawable circuit-breakers have shutters for segregating the fixed contacts when the circuit-breaker is withdrawn from the compartment. These can be locked in their closed position using padlock devices.
Caption
1 Sheet steel supporting structure 2 Single earthing clamp mounted on the left for E1, E2 and E3, double earthing clamps for E4 and E6 3 Safety shutters (protection rating IP20) 4 Terminal support base 5 Terminals (rear, front or flat) 6 Contacts signalling that the circuit-breaker is racked-in, test isolated, racked-out 7 Sliding contacts 8 Padlock device for safety shutters (on request) 9 Fastening points (4 for E1, E2, E3 and 6 for E4, E6)

1

7 6 1 4

8

3

5

2

9

ABB SACE

1SDC200022F0001

1/7

Construction characteristics
Utilization category

Selective and current-limiting circuit-breakers
Selective (non current-limiting) circuit-breakers are classified

1

in class B (according to the IEC 60947-2 Standard). It is important to know their Icw values in relation to any possible delayed trips in the event of short-circuits. The current-limiting circuit-breakers E2L and E3L belong to class A. The short-time withstand current Icw is not very important for these circuit-breakers, and is necessarily low due to the operating principle on which they are based. The fact that they belong to class A does not preclude the possibility of obtaining the necessary selectivity (e.g. current-type or time-type selectivity). The special advantages of current-limiting circuit-breakers should also be underlined. In fact, they make it possible to: ? significantly reduce the peak current in relation to the prospective value; ? drastically limit specific let-through energy. The resulting benefits include: ? reduced electrodynamic stresses; ? reduced thermal stresses; ? savings on the sizing of cables and busbars; ? the possibility of coordinating with other circuit-breakers in the series for back-up or discrimination.

9

8

7

6b 6a

9

8

7

6

Caption
Sheet steel supporting structure 2 Current transformer for protection release 3 Pole group insulating box 4 Horizontal rear terminals 5-5a Plates for fixed main contacts 5b Plates for fixed arcing contacts 6-6a Plates for main moving contacts 6b Plates for moving arcing contacts 7 Arcing chamber 8 Terminal box for fixed version - Sliding contacts for withdrawable version 9 Protection release 10 Circuit-breaker closing and opening control 11 Closing springs 1

1SDC200023F0001

5b 5a

1SDC200024F0001

5 10 2 4 3 1

10

2 4 3 1

11

11

Selective circuit-breaker

E1 B-N, E2 B-N-S, E3 N-S-H-V, E4 S-H-V, E6 H-V

Current-limiting circuit-breaker

E2 L, E3 L

1/8

ABB SACE

Versions and connections

All the circuit-breakers are available in fixed and withdrawable, three-pole or four-pole versions. Each series of circuit-breakers offers terminals made of silverplated copper bars, with the same dimensions, regardless of the rated currents of the circuit-breakers. The fixed parts for withdrawable circuit-breakers are common to each model, regardless of the rated current and breaking capacity of the relative moving parts, except for the E2S circuitbreaker which requires a specific fixed part. A version with gold-plated terminals is available for special requirements, linked to use of the circuit-breakers in corrosive environments. The availability of various types of terminals makes it possible to build wall-mounted switchgear, or switchgear to be accessed from behind with rear connections. For special installation needs, the circuit-breakers can be fitted with various combinations of top and bottom terminals. Furthermore new dedicated terminal conversion kits give Emax maximum flexibility, allowing horizontal terminals to be changed to vertical or front ones and vice versa.

1

Fixed circuit-breaker

1SDC200025F0001

1SDC200026F0001

Horizontal rear terminals

Vertical rear terminals

1SDC200027F0001

Front terminals

Withdrawable circuit-breaker

1SDC200028F0001

1SDC200029F0001

1SDC200030F0001

Horizontal rear terminals

Vertical rear terminals

Front terminals

1SDC200031F0001

Flat terminals

ABB SACE

1/9

Electronic releases
General characteristics
The overcurrent protection for AC installations uses three types of electronic release series: PR121, PR122 and PR123. The basic series, PR121, offers the whole set of standard protection functions, complete with a user-friendly interface. It allows discrimination of which fault caused the trip by means of the new led indications. PR122 and PR123 releases are of new concept modular architecture. It is now possible to have a complete series of protections, accurate measurements, signalling or dialogue functions, designed and customisable for all application requirements. The protection system is made up of: ? 3 or 4 new generation current sensors (Rogowsky coil); ? external current sensors (i.e. for external neutral, residual current or source ground return protection); ? a protection unit selected among PR121/P, PR122/P or PR123/P with optional communication module via Modbus or Fieldbus plug network (PR122/P and PR123/P only), as well as via a wireless connection; ? an opening solenoid, which acts directly on the circuit-breaker operating mechanism (supplied with the protection unit).

1

1/10

ABB SACE

1SDC200034F0001

General specifications of the electronic releases include: ? operation without the need for an external power supply ? microprocessor technology ? high precision ? sensitivity to the true R.M.S. value of the current ? trip cause indication and trip data recording ? interchangeability among all types of releases ? setting for neutral configurable: ? OFF-50%-100%-200% of phase setting for circuit-breakers E1, E2, E3 and E4/f, E6/f full-size versions, and E4-E6 with external neutral protection; ? OFF-50% for standard E4 and E6. The main performance features of the releases are listed below.

1

PR121

PR121/P
Protection

PR121/P

PR121/P

PR122

PR122/P
Protection

PR122/P

PR122/P

PR122/P

Rc
For all versions
U OT M

New modules available:
Measuring Communication Signalling Bluetooth (wireless link) opt. opt. opt. opt.
UV OV RV RP UF OF

PR123

PR123/P
Protection For all versions
OT D

PR123/P

U

UV

OV

RV

RP

M

UF

OF

New modules available:
Communication Signalling Bluetooth (wireless link) opt. opt. opt.

ABB SACE

1/11

Electronic releases
Versions available

Features
Protection functions
Protection against overload with inverse long time-delay trip Selective protection against short-circuit inverse or definite short time-delay trip

PR121
■ ■

PR122
■ ■

PR123
■ ■ ■

1
Rc
D U OT UV OV RV RP M UF OF

Second selective protection against short-circuit inverse or definite short time-delay trip Protection against instantaneous short-circuit with adjustable trip current threshold Protection against earth fault Residual current
(1)

residual source ground return

■ ■

■ ■ ■ opt.(2)

■ ■ ■ ■ ■

Protection against directional short-circuit with adjustable time-delay Protection against phase unbalance Protection against overtemperature (check) Protection against undervoltage Protection against overvoltage Protection against residual voltage Protection against reverse active power Thermal memory for functions L and S Underfrequency Overfrequency ■ ■ opt.(3) opt.(3) opt.(3) opt.(3) ■ opt.(3) opt.(3)

■ ■ ■ ■ ■ ■ ■ ■ ■

Measurements
Currents (phases, neutral, earth fault) Voltage (phase-phase, phase-neutral, residual) Power (active, reactive, apparent) Power factor Frequency and peak factor Energy (active, reactive, apparent, meter) Harmonics calculation (display of wave forms and harmonics module) ■ opt.(3) opt.(3) opt.(3) opt.(3) opt.(3) ■ ■ ■ ■ ■ ■ ■

Event marking and maintenance data
Event marking with the instant it occurred Chronological event storage Counting the number of operations and contact wear opt.(4) opt.(4) ■ ■ ■ ■ ■ ■

Communication with supervision system and centralised control
Remote parameter setting of the protection functions, unit configuration, communication Transmission of measurements, states and alarms from circuit-breaker to system Transmission of the events and maintenance data from circuit-breaker to system opt.(5) opt.(5) opt.(5) opt.(5) opt.(5) opt.(5)

Watchdog
Alarm and trip for release overtemperature Check of release status ■ ■ ■ ■ ■

Interface with the user
Presetting parameters by means of dip switches Presetting parameters by means of keys and LCD viewer Alarm signals for functions L, S, I and G Alarm signal of one of the following protections: undervoltage, overvoltage, residual voltage, active reverse of power, phase unbalance, overtemperature Complete management of pre-alarms and alarms for all the self-control protection functions Enabling password for use with consultation in “READ” mode or consultation and setting in “EDIT” mode ■ ■ ■ ■ opt.(3) ■ ■ ■ ■ ■ ■ ■

Load control
Load connection and disconnection according to the current passing through the circuit-breaker





Zone selectivity
Can be activated for protection functions S, G and (PR123 only) D





(1) requires a homopolar toroid for residual current protection; (2) the RC function is available with PR122LSIRc or with PR122LSIG and module PR120/V; (3) with PR120/V; (4) with BT030 communication unit; (5) with PR120/D-M

1/12

ABB SACE

Electronic releases
Rating plugs
A new concept for setting the current ratings

Rating plugs
Type of circuit-breaker Rated current Iu 800 E1B 1000-1250 1600 800 E1N 1000-1250 1600 E2B 1600 2000 1000-1250 E2N 1600 2000 800 E2S 1000-1250 1600 2000 E2L E3N 1250 1600 2500 3200 1000-1250 1600 E3S 2000 2500 3200 800 1000-1250 1600 E3H 2000 2500 3200 800 1250 E3V 1600 2000 2500 3200 E3L E4S, E4S/f E4H, E4H/f E4V 2000 2500 4000 3200 4000 3200 4000 4000 E6H, E6H/f 5000 6300 3200 E6V 4000 5000 6300 In [A]

400

630

800

1000

1250

1600

2000

2500

3200

4000

5000

6300

1

ABB SACE

1/13

Compliance with Standards
Standards, approvals and certifications
SACE Emax circuit-breakers and their accessories conform to the international IEC 60947, EN 60947 (harmonized in 28 CENELEC countries), CEI EN 60947 and IEC 61000 Standards, and comply with following EC directives: ? ?Low Voltage Directive? (LVD) no 73/23 EEC ? ?Electromagnetic Compatibility Directive? (EMC) nr. 89/336 EEC. The main versions of the apparatus are approved by the following Shipping Registers: ? RINA (Italian Naval Register) ? Det Norske Veritas ? Bureau Veritas ? Germanischer Lloyd ? Loyd?s Register of Shipping ? Polskj Rejestr Statkow ? ABS (American Bureau of Shipping) ? RMRS (Russian Maritime Register of Shipping) ? NK (Nippon Kaiji Kyokai) The Emax series also has a range which has undergone certification according to the severe American UL 1066 Standards. Furthermore, the Emax series is certified by the Russian GOST (Russia Certificate of Conformity) certification organization, and is certified by China CCC (China Compulsory Certification) Certification of conformity with the aforementioned product Standards is carried out in compliance with European Standard EN 45011 by the Italian certification body ACAE (Associazione per la Certificazione delle Apparecchiature Elettriche - Association for Certification of Electrical Apparatus), recognized by the European organization LOVAG (Low Voltage Agreement Group).

1

Note: Contact ABB SACE for a list of
approved types of circuit-breakers, approved performance data and the corresponding validity

1/14

ABB SACE

Compliance with Standards
A design dedicated to Quality and respect for the environment
Quality, environment, health and safety have always been ABB SACE?s major commitment. This commitment involves every function of the company, and has allowed us to achieve prestigious recognition internationally. The company?s quality management system is certified by RINA, one of the most prestigious international certification boards, and complies with ISO 9001-2000 Standards; the ABB SACE test facility is accredited by SINAL; the plants in Frosinone, Patrica, Vittuone and Garbagnate Monastero are also certified in compliance with ISO 14001 and OHSAS 18001 standards for health and safety in the workplace. ABB SACE, Italy?s first industrial company in the electro-mechanical sector to achieve this, has been able to reduce its raw material consumption and machining scrap by 20% thanks to an ecology-centred revision of its manufacturing process. All of the company?s Divisions are involved in streamlining raw material and energy consumption, preventing pollution, limiting noise pollution and reducing scrap resulting from manufacturing processes, as well as in carrying out periodic environmental audits of leading suppliers. ABB SACE is committed to environmental protection, as is also evidenced by the Life Cycle Assessments (LCA) of products carried out at the Research Centre: this means that assessments and improvements of the environmental performance of products throughout their life cycle are included right from the initial engineering stage. The materials, processes and packaging used are chosen with a view to optimising the actual environmental impact of each product, including its energy efficiency and recyclability.

1

1SDC200039F0001

ABB SACE

1/15

The Ranges

Contents
SACE Emax automatic circuit-breakers ........................................................................... 2/2

2

Automatic circuit-breakers with full-size neutral conductor ....................................... 2/4

Switch-disconnectors ....................................................................................................... 2/5

Automatic circuit-breakers for applications up to 1150V AC ...................................... 2/6

Switch-disconnectors for applications up to 1150V AC ............................................... 2/7

Switch-disconnectors for applications up to 1000V DC .............................................. 2/8

Sectionalizing truck ........................................................................................................... 2/9

Earthing switch with making capacity ............................................................................ 2/10

Earthing truck ..................................................................................................................... 2/11

Other versions .................................................................................................................... 2/11

ABB SACE

2/1

SACE Emax automatic circuit-breakers

Common data
1SDC200076F0001

Rated service voltage Ue Rated insulation voltage Ui Rated impulse withstand voltage Uimp Operating temperature Storage temperature Frequency f Number of poles Versions

[V] 690 ~ [V] 1000 [kV] 12 [°C] -25....+70 [°C] -40....+70 [Hz] 50 - 60 3-4 Fixed - Withdrawable

E1

E2
B N S L 1600 1000 800 1250 2000 1250 1000 1600 1600 1250 2000 1600 2000

2

Performance levels Currents: rated uninterrupted current (at 40 °C) Iu

Neutral pole current-carrying capacity for 4-pole CBs 100 100 Rated ultimate breaking capacity under short-circuit Icu 220/230/380/400/415 V ~ [kA] 42 50 440 V ~ [kA] 42 50 500/525 V ~ [kA] 42 50 660/690 V ~ [kA] 42 50 Rated service breaking capacity under short-circuit Ics 220/230/380/400/415 V ~ [kA] 42 50 440 V ~ [kA] 42 50 500/525 V ~ [kA] 42 50 660/690 V ~ [kA] 42 50 Rated short-time withstand current Icw (1s) [kA] 42 50 (3s) [kA] 36 36 Rated making capacity under short-circuit (peak value) Icm 220/230/380/400/415 V ~ [kA] 88.2 105 440 V ~ [kA] 88.2 105 500/525 V ~ [kA] 88.2 105 660/690 V ~ [kA] 88.2 105 Utilisation category (according to CEI EN 60947-2) B B Isolation behaviour (according to CEI EN 60947-2) ■ ■ Overcurrent protection Electronic releases for AC applications ■ ■ Operating times Closing time (max) [ms] 80 80 Breaking time for I<Icw (max) (1) [ms] 70 70 Breaking time for I>Icw (max) [ms] 30 30 Overall dimensions Fixed: H = 418 mm - D = 302 mm L (3/4 poles) [mm] 296/386 Withdrawable: H = 461 mm - D = 396.5 mm L (3/4 poles) [mm] 324/414 Weights (circuit-breaker complete with releases and CS, excluding accessories) Fixed 3/4 poles [kg] 45/54 45/54 Withdrawable 3/4 poles (including fixed part) [kg] 70/82 70/82
(1) Without intentional delays; (2) The performance at 600V is 100kA.

[A] [A] [A] [A] [A] [A] [A] [%Iu]

B 800 1000 1250 1600

N 800 1000 1250 1600

100 42 42 42 42 42 42 42 42 42 42 88.2 88.2 88.2 88.2 B ■ ■ 80 70 30

100 65 65 55 55 65 65 55 55 55 42 143 143 121 121 B ■ ■ 80 70 30

100 85 85 65 65 85 85 65 65 65 50 187 187 143 143 B ■ ■ 80 70 30

100 130 110 85 85 130 110 65 65 10 – 286 242 187 187 A ■ ■ 80 70 12

296/386 324/414 50/61 50/61 50/61 52/63 78/93 78/93 78/93 80/95

E1 B-N
Rated uninterrupted current (at 40 °C) Iu Mechanical life with regular ordinary maintenance Operation frequency Electrical life Operation frequency [A] [No. operations x 1000] [Operations/hour] (440 V ~) [No. operations x 1000] (690 V ~) [No. operations x 1000] [Operations/hour] 800 25 60 10 10 30 1000-1250 1600 25 60 10 8 30 25 60 10 8 30 25 60 15 15 30

E2 B-N-S
800 1000-1250 1600 25 60 15 15 30 25 60 12 10 30 2000 25 60 10 8 30

E2 L
1250 20 60 4 3 20 1600 20 60 3 2 20

2/2

ABB SACE

1SDC200077F0001

Voltages

1SDC200078F0001

E3
N 2500 3200 S 1000 1250 1600 2000 2500 3200 100 75 75 75 75 75 75 75 75 75 65 165 165 165 165 B ■ ■ 80 70 30 H 800 1000 1250 1600 2000 2500 3200 100 100 100 100 85 (2) 85 85 85 85 75 65 220 220 187 187 B ■ ■ 80 70 30 404/530 432/558 66/80 104/125 66/80 104/125 66/80 104/125 66/80 104/125 72/83 110/127 97/117 147/165 V 800 1250 1600 2000 2500 3200 100 130 130 100 100 100 100 85 85 85 65 286 286 220 220 B ■ ■ 80 70 30 L 2000 2500 S 4000

E4
H 3200 4000 V 3200 4000 H 4000 5000 6300

1SDC200079F0001

E6
V 3200 4000 5000 6300

1SDC200080F0001

2

100 65 65 65 65 65 65 65 65 65 65 143 143 143 143 B ■ ■ 80 70 30

100 130 110 85 85 130 110 65 65 15 – 286 242 187 187 A ■ ■ 80 70 12

50 75 75 75 75 75 75 75 75 75 75 165 165 165 165 B ■ ■ 80 70 30

50 100 100 100 85 (2) 100 100 100 85 100 75 220 220 220 187 B ■ ■ 80 70 30 566/656 594/684 97/117 147/165

50 150 150 130 100 150 150 130 100 100 75 330 330 286 220 B ■ ■ 80 70 30

50 100 100 100 100 100 100 100 100 100 85 220 220 220 220 B ■ ■ 80 70 30 782/908 810/936

50 150 150 130 100 125 125 100 100 100 85 330 330 286 220 B ■ ■ 80 70 30

97/117 147/165

140/160 210/240

140/160 210/240

E3 N-S-H-V
800 20 60 12 12 20 1000-1250 1600 20 60 12 12 20 20 60 10 10 20 2000 20 60 9 9 20 2500 20 60 8 7 20 3200 20 60 6 5 20 15 60 2

E3 L
2000 2500 15 60 1.8 1.3 20

E4 S-H-V
3200 15 60 7 7 10 4000 15 60 5 4 10 3200 12 60 5 5 10

E6 H-V
4000 12 60 4 4 10 5000 12 60 3 2 10 6300 12 60 2 1.5 10

1.5 20

ABB SACE

2/3

Automatic circuit-breakers with full-size neutral conductor
The Emax range of automatic circuit-breakers with full-size neutral conductor is used in special applications where the presence of third harmonics on individual phases can lead to a very high current on the neutral conductor. Typical applications include installations with loads having high harmonics distortion (computers and electronic devices in general), lighting systems with a large number of fluorescent lamps, systems with inverters and rectifiers, UPS, and systems for adjusting the speed of electric motors. This range includes standard circuit-breakers with full-size neutral conductor in sizes E1, E2, E3. Models E4 and E6 are available in the ?Full size? version up to rated currents of 6300A. Models E4/f and E6/f are available in fixed and withdrawable four-pole versions. These models can all be fitted with all accessories available for the Emax range, with the exception, on the E6/f model, of the mechanical interlocks made using flexible wires and 15 external auxiliary contacts, which are therefore incompatible. All the models can be fitted with all the available versions of electronic protection relays, in the standard version.

2

1SDC200058F0001

E4S/f
Rated uninterrupted current (at 40 °C) Iu [A] [A] [A] Number of poles Rated service voltage Ue Rated ultimate breaking capacity under short-circuit Icu 220/230/380/400/415 V ~ 440 V ~ 500/525 V ~ 660/690 V ~ Rated service breaking capacity under short-circuit Ics 220/230/380/400/415 V ~ 440 V ~ 500/525 V ~ 660/690 V ~ Rated short-time withstand current Icw (1s) (3s) Rated making capacity under short-circuit (peak value) Icm 220/230/380/400/415 V ~ 440 V ~ 500/525 V ~ 660/690 V ~ Utilisation category (according to CEI EN 60947-2) Behavior on isolation (according to CEI EN 60947-2) Overall dimensions Fixed: H = 418 mm - D = 302 mm L Withdrawable: H = 461 - D = 396.5 mm L Fixed Withdrawable [mm] [mm] [kg] [kg] 746 774 120 170 [kA] [kA] [kA] [kA] 176 176 165 165 B ■ [kA] [kA] 75 75 [kA] [kA] [kA] [kA] 80 80 75 75 [kA] [kA] [kA] [kA] 80 80 75 75 [V ~] 4 690 4000

E4H/f
3200 4000 4 690 100 100 100 100 100 100 100 100 85 75 220 220 220 220 B ■ 746 774 120 170

E6H/f
4000 5000 6300 4 690 100 100 100 100 100 100 100 100 100 85 220 220 220 220 B ■ 1034 1062 165 250

Weights (circuit-breaker complete with releases and CS, excluding accessories)

2/4

ABB SACE

Switch-disconnectors

The switch-disconnectors are derived from the corresponding circuit-breakers, of which they maintain the overall dimensions and the possibility of mounting accessories. This version only differs from the circuit-breakers in the absence of overcurrent releases. The circuit-breaker is available in both fixed and withdrawable, three-pole and four-pole versions. The switch-disconnectors, identified by the letters ?/MS?, can be used according to category of use AC-23A (switching motor loads or other highly inductive loads) in accordance with the IEC 60947-3 Standard. The electrical specifications of the switch-disconnectors are listed in the table below.

1SDC200060F0001

2
E1B/MS E1N/MS E2B/MS E2N/MS E2S/MS E3N/MS E3S/MS E3V/MS E4S/MS E4S/fMS E4H/MS E4H/fMS E6H/MS E6H/f MS

Rated uninterrupted current (at 40 °C) Iu

[A] [A] [A] [A] [A] [A]

800 1000 1250 1600

800 1000 1250 1600

1600 2000

1000 1250 1600 2000

1000 1250 1600 2000

2500 3200

1000 1250 1600 2000 2500 3200

800 1250 1600 2000 2500 3200 690 250 1000 12 85 65

4000

4000

3200 4000

3200 4000

4000 5000 6300

4000 5000 6300

Rated service voltage Ue [V ~] [V –] Rated insulation voltage Ui [V ~] Rated impulse withstand voltage Uimp Rated short-time withstand current Icw (1s) (3s) Rated making capacity under short-circuit (peak value) Icm 220/230/380/400/415/440 V ~ [kA] 500/660/690 V ~ [kA] 88.2 88.2 105 105 88.2 88.2 121 121 143 143 143 143 165 165 187 187 165 165 165 165 220 220 187 187 220 220 220 220 [kV] [kA] [kA] 1000 12 42 36 1000 12 50
(1)

690 250

690 250

690 250 1000 12 42 42

690 250 1000 12 55 42

690 250 1000 12 65 42

690 250 1000 12 65 65

690 250 1000 12 75 65

690 250 1000 12 75 75

690 250 1000 12 75 75

690 250 1000 12 100 75
(2)

690 250 1000 12 85 75

690 250 1000 12 100 85

690 250 1000 12 100 85

36

Note:

the breaking capacity Icu, at the maximum rated use voltage, by means of external protection relay, with 500 ms maximum timing, is

equal to the value of Icw (1s), except: (1) Icu = 50kA ? 690V (2) Icu = 85kA ? 690V

ABB SACE

2/5

Automatic circuit-breakers for applications up to 1150V AC
SACE Emax circuit-breakers can be supplied in a special version for rated service voltages up to 1150 V in AC. Circuit-breakers in this version are identified by the letters of the standard range (rated service voltage up to 690 V AC) plus ?/E?, and are derived from the corresponding standard SACE Emax circuit-breakers. They offer the same versions and accessories as the latter. The SACE Emax range of circuit-breakers for applications up to 1150V in AC can be either fixed and withdrawable, in both three-pole and four-pole versions. SACE Emax/E circuit-breakers are especially suitable for installation in mines, oil and chemical plants, and for traction. This range of Emax was tested at a voltage of 1250VAC. The table below shows the electrical specifications of the range.

2
E2B/E
Rated uninterrupted current (at 40 °C) Iu Rated service voltage Ue Rated insulation voltage Ui Rated ultimate breaking capacity under short-circuit Icu 1000 V 1150 V Rated service breaking capacity under short-circuit Ics 1000 V 1150 V Rated short-time withstand current Icw (1s) Rated making capacity under short-circuit (peak value) Icm 1000 V 1150 V [kA] [kA] 40 40 40 40 63 63 63 63 63 63 105 63 105 63 105 63 105 63 105 63 143 143 143 143 143 143 143 143 143 143 [kA] [kA] [kA] 20 20 20 20 20 20 30 30 30 30 30 30 30 30 30 50 30 50
(*)

1SDC200061F0001

E2N/E
1250 1150 1250 1600 1150 1250 2000 1150 1250 1250 1150 1250 1600 1150 1250

E3H/E
2000 1150 1250 2500 1150 1250 3200 1150 1250

E4H/E
3200 1150 1250 4000 1150 1250 4000 1150 1250

E6H/E
5000 1150 1250 6300 1150 1250

[A] [V~] [V~]

1600 1150 1250

2000 1150 1250

[kA] [kA]

20 20

20 20

30 30

30 30

30 30

50 30

50 30

50 30

50 30

50 30

65 65

65 65

65 65

65 65

65 65

50 30 50
(*)

50 30 50
(*)

50 30 50
(*)

50 30 50
(*)

65 65 65

65 65 65

65 65 65

65 65 65

65 65 65

(*) 30 kA ? 1150 V

2/6

ABB SACE

Switch-disconnectors for applications up to 1150V AC
The switch-disconnectors complete the range of apparatus for applications at 1150V in alternating current (AC). These circuit-breakers conform with the IEC 60947-3 Standards. Circuit-breakers in this version are identified by the letters of the standard range, where the rated service voltage is up to 690 V AC, plus ?/E?, thus becoming SACE Emax/E MS. They are derived from the corresponding standard SACE Emax switch-disconnectors. They are available in the three-pole and four-pole, fixed and withdrawable versions in the same sizes, with accessory options and installations as per the corresponding standard circuit-breakers. All the accessories available for the SACE Emax range can be used. Standard fixed parts may also be used for circuit-breakers in the withdrawable version. As per the corresponding automatic version, this range of Emax was tested at a voltage of 1250VAC.

1SDC200061F0001

2
E2B/E MS
Rated current (at 40 °C) Iu [A] [A] [A] [A] [A] Poles Rated service voltage Ue Rated insulation voltage Ui Rated impulse withstand voltage Uimp Rated short-time withstand current Icw (1s) Rated making capacity Icm 1150V AC (peak value) [V] [V] [kV] [kA] [kA] 3/4 1150 1250 12 20 40 3/4 1150 1250 12 30 63 1600 2000

E2N/E MS
1250 1600 2000

E3H/E MS
1250 1600 2000 2500 3200 3/4 1150 1250 12 30(1) 63(2)

E4H/E MS*
3200 4000

E6H/E MS*
4000 5000 6300

3/4 1150 1250 12 65 143

3/4 1150 1250 12 65 143

Note:

The breaking capacity Icu, by means of external protection relay, with 500 ms maximum timing, is equal to the value of Icw (1s).

(1) The performance at 1000V is 50 kA. (2) The performance at 1000V is 105 kA. * For the dimensions of E4H/E MS and E6H/E MS in four-pole version, please refer to the corresponding automatic circuit-breakers with full-size neutral conductor.

ABB SACE

2/7

Switch-disconnectors for applications up to 1000V DC
ABB SACE has developed the SACE Emax/E MS range of switch-disconnectors for applications in direct current up to 1000V in compliance with the international IEC 60947-3 Standard. These non-automatic circuit-breakers are especially suitable for use as bus ties or main isolators in direct current systems, such as in applications involving electric traction. The range covers all installation needs up to 1000V DC / 6300A. They are available in fixed and withdrawable, three-pole and four-pole versions. By connecting three breaking poles in series, it is possible to achieve a rated insulation voltage of 750V DC, while with four poles in series the limit rises to 1000V DC. The switch-disconnectors of the SACE Emax/E MS range maintain the overall dimensions and fixing points of the standard range circuit-breakers. They can be fitted with the various terminal kits and all the accessories common to the SACE Emax range. They cannot, of course, be associated with the electronic releases, CSs and accessories for determining currents and for AC applications. The withdrawable circuit-breakers should be used together with the special version fixed parts for applications at 750/1000V DC.

2

1SDC200061F0001

E1B/E MS
Rated current (at 40 °C) Iu [A] [A] [A] [A] [A] Poles Rated service voltage Ue Rated insulation voltage Ui Rated impulse withstand voltage Uimp Rated short-time withstand current Icw (1s) Rated making capacity Icm 750V DC 1000V DC [V] [V] [kV] [kA] [kA] 3 750 1000 12 20 42 – 4 1000 1000 12 20
(1)

E2N/E MS
1250 1600 2000

E3H/E MS
1250 1600 2000 2500 3200

E4H/E MS*
3200 4000

E6H/E MS*
5000 6300

800 1250

3 750 1000 12 25 52.5 –

4 1000 1000 12 25(1) 52.5 52,5

3 750 1000 12 40 105 –

4 1000 1000 12 40
(1)

3 750 1000 12 65 143 –

4 1000 1000 12 65 143 143

3 750 1000 12 65 143 –

4 1000 1000 12 65 143 143

42 42

105 105

Note: The breaking capacity Icu, by means of external protection relay, with 500 ms maximum timing, is equal to the value of Icw (1s).
(1) The performances at 750 V are: for E1B/E MS Icw = 25 kA, for E2N/E MS Icw = 40 kA and for E3H/E MS Icw = 50 kA. * For the dimensions of E4H/E MS and E6H/E MS in four-pole version, please refer to the corresponding automatic circuit-breakers with full-size neutral conductor.

2/8

ABB SACE

Sectionalizing truck

Sectionalizing truck - CS
This version is derived from the corresponding withdrawable circuit-breaker, with replacement of all the breaking parts and the operating mechanism with simple connections between the top and bottom isolating contacts. It is used as a no load isolator where this is required by the system.

2
1SDC200064F0001 1SDC200065F0001

ABB SACE

2/9

Earthing switch with making capacity

Earthing switch with making capacity - MTP
This version is based on the moving part of the corresponding withdrawable circuit-breaker (without overcurrent releases) and the top or bottom isolating contacts, which are replaced with connections that short circuit the phases to earth through the circuit-breaker. The earthing switch is available with top or bottom isolating contacts. The earthing circuit is dimensioned for a short-time withstand current equal to 60% of the maximum lcw of the circuit-breaker from which it is derived (IEC 60439-1). The earthing switch is inserted in the fixed part of a withdrawable circuit-breaker to earth the top or bottom terminals before carrying out inspection or maintenance operations in safe conditions on the external circuit. It should be used in cases where residual or recovery voltages can occur in the installations to be earthed.

2

1SDC200067F0001

1SDC200068F0001

1SDC200069F0001

2/10

ABB SACE

1SDC200070F0001

Earthing truck Other versions

Earthing truck- MT
This version is similar to the sectionalizing truck, but with the bottom or top isolating contacts replaced by short-circuited, earthed connections. The earthing truck is available with bottom or top isolating contacts, suitable for the fixed part of the size. The earthing circuit is dimensioned for a short-time withstand current equal to 60% of the maximum lcw of the circuit-breaker from which it is derived (IEC 60439-1). The truck is temporarily racked into the fixed part of a withdrawable circuit-breaker to earth the top or bottom terminals before carrying out maintenance operations on the external circuit when no residual voltages are expected to occur.

2

1SDC200072F0001

1SDC200073F0001

1SDC200074F0001

Other versions
On request, SACE Emax circuit-breakers can be built in special versions designed for particularly aggressive environments (SO2/H2S), for seismic installations or with the neutral pole on the right side.

ABB SACE

1SDC200075F0001

2/11

Installations

Contents
Installation in switchgear Modular design ..................................................................................................................... 3/2 Choosing the type of circuit-breaker ................................................................................... 3/3 Current-carrying capacity in switchgear .............................................................................. 3/6

Changing the rated uninterrupted current in relation to the temperature Temperature derating ........................................................................................................... 3/7

3

Derating at different altitudes .......................................................................................... 3/12

Current-limiting and specific let-through energy curves for E2L and E3L circuit-breakers ..................................................................................... 3/13

ABB SACE

3/1

Installation in switchgear
Modular design
The circuit-breakers in the SACE Emax series have been built according to modular design criteria for easier installation and integration in low voltage electrical switchgear, thanks to their having the same depth and height for all the sizes, as well as a significant reduction in their overall installation dimensions. The front shield of the circuit-breaker is also identical for the entire series. This simplifies construction of the switchgear doors since only one type of drilling is required and makes the front of the switchgear the same for all sizes. SACE Emax circuit-breakers are suitable for Power Center switchgear and make it easy to comply with the segregation requirements of the IEC 60439-1 Standards.

3

1SDC200082F0001

3/2

ABB SACE

Installation in switchgear
Choosing the type of circuit-breaker

Number of poles
The choice of the number of poles for circuit-breakers that simultaneously provide switching, protection and isolation functions in three-phase installations depends on the type of electrical system (TT, TN-S, TN-C, IT) and the type of user or, more generally, whether it features a distributed or non-distributed neutral.
Three-pole circuit breakers Four-pole circuit breakers Three-pole circuit breakers with external neutral

3
For TN-C systems (the neutral cannot be interrupted because it also acts as the protection conductor). For users that do not use the neutral (e.g.: asynchronous motors) and, for systems with undistributed neutral in general. In all other instances, with exceptions for the IT system (see CEI 64-8/473.3.2.2 Standards). Current transformers can be installed on the external neutral of five-wire systems (TN-S) with 3-pole circuit-breakers.

Fixed or withdrawable version
The fixed version of the circuit-breaker is more compact in size than the withdrawable version. It is recommended for installations that can tolerate service interruptions in the event of faults or programmed maintenance. The withdrawable version of the circuit-breaker is recommended for: ? applications that can only tolerate brief interruptions due to faults or programmed maintenance; ? dual lines, one of which is a standby for the other, with a single circuit-breaker for each pair.

ABB SACE

1SDC200083F0001

3/3

Installation in switchgear
Choosing the type of circuit-breaker

Connecting the main circuit-breaker circuits
When designing switchgear, one must always bear in mind the problem of making the most rational connections between the circuit-breaker and main busbar system and from the busbars to the users. The SACE Emax series offers switchgear manufacturers a range of options to satisfy different circuit-breaker connection requirements. The figures below give some indications for terminal selection.

Horizontal rear terminals

Vertical rear terminals

Front terminals

Flat rear terminals

3

For switchgear with access from the rear

For switchgear with access from the rear

For wall-mounted switchgear, with access from the front only

(withdrawable version only) For switchgear with access from the rear

Degrees of protection
A number of solutions have been adopted on SACE Emax circuit-breakers to achieve IP22 degree of protection for fixed or withdrawable circuit-breakers, excluding the terminals, and IP30 for their front parts using a flange. Automatic shutters have been designed for the fixed parts of withdrawable circuit-breakers which can be locked using padlock devices to allow maintenance on the load side or on the power-supply side of the fixed part. A transparent protective cover is also available on request, to completely segregate the front of the circuit-breaker, reaching IP54 degree of protection. In any case, the front panel and protection release with the relative indications remain completely visible. IP22 Fixed or withdrawable version circuit-breaker, excluding the terminals. IP30 Front parts of the circuit-breakers (using a flange). IP54 Fixed or withdrawable version circuit-breaker, fitted with transparent protective cover to be fixed onto the front of the switchgear (on request).

3/4

ABB SACE

1SDC200089F0001

Power losses
The IEC 439-1 and CEI EN 60439-1 Standards prescribe calculations for determining the heat dissipation of ANS type switchgear (non-standard), for which the following must be taken into consideration: ? the overall dimensions ? the rated current of the busbars and connections and the relative dissipation ? the dissipated power of the apparatus mounted in the switchgear. For this point, the table beside provides information on the circuit-breakers. For other apparatus, please consult the catalogues of the relative manufacturers.

Power losses
Circuit breaker Iu [A] E1 B-N 800 1000 1250 1600 800 1000 1250 1600 2000 1250 1600 800 1000 1250 1600 2000 2500 3200 2000 2500 3200 4000 3200 4000 5000 6300 Fixed Poles 3/4 Poles [W] 65 96 150 253 29 44.8 70 115 180 105 170 22 38.4 60 85 130 205 330 215 335 235 360 170 265 415 650 Withdrawable 3/4 Poles [W] 95 147.2 230 378 53 83.2 130 215 330 165 265 36 57.6 90 150 225 350 570 330 515 425 660 290 445 700 1100

E2 B-N-S

E2 L E3 N-S-H-V

3

E3 L E4 S-H-V E6 H-V

Note The table values refer to balanced loads, a current flow of Iu, and automatic circuitbreakers.

1SDC200090F0001

Note The same standards prescribe type tests for AS switchboards (standard factorymanufactured switchgear), including those for maximum temperature rise.

ABB SACE

3/5

Installation in switchgear
Current-carrying capacity in switchgear
As an example, the following table shows the continuous current carrying capacity for circuit-breakers installed in a switchgear with the dimensions indicated below. These values refer to withdrawable version circuit-breaker installed in non-segregated switchgear with a degree of protection up to IP31, and the following dimensions: 2300x800x900 (HxLxD) for E1 - E2 - E3; 2300x1400x1500 (HxLxD) for E4 - E6. The values refer to a maximum temperature at the terminals of 120°C. For withdrawable circuit-breakers with a rated current of 6300A, the use of vertical rear terminals is recommended.

Note: The tables should be used solely as a general guideline for selecting products. Due to the extensive variety of switchgear construction shapes and conditions that can affect the behavior of the apparatus, the solution used must always be verified.

Vertical terminals
Type Iu [A] 35°C E1B/N 08 E1B/N 10 E1B/N 12 E1B/N 16 E2S 08 E2N/S 10 E2N/S 12 E2B/N/S 16 E2B/N/S 20 E2L 12 E2L 16 E3H/V 08 E3S/H 10 E3S/H/V 12 E3S/H/V 16 E3S/H/V 20 E3N/S/H/V 25 E3N/S/H/V 32 E3L 20 E3L 25 E4H/V 32 E4S/H/V 40 E6V 32 E6H/V 40 E6H/V 50 E6H/V 63 800 1000 1250 1600 800 1000 1250 1600 2000 1250 1600 800 1000 1250 1600 2000 2500 3200 2000 2500 3200 4000 3200 4000 5000 6300 800 1000 1250 1600 800 1000 1250 1600 2000 1250 1600 800 1000 1250 1600 2000 2500 3200 2000 2500 3200 4000 3200 4000 5000 6000 Continuous capacity [A] 45°C 800 1000 1250 1600 800 1000 1250 1600 2000 1250 1600 800 1000 1250 1600 2000 2500 3100 2000 2390 3200 3980 3200 4000 4850 5700 55°C 800 1000 1250 1500 800 1000 1250 1600 1800 1250 1500 800 1000 1250 1600 2000 2500 2800 2000 2250 3200 3500 3200 4000 4600 5250 1x(60x10) 1x(80x10) 1x(80x10) 2x(60x10) 1x(60x10) 1x(60x10) 1x(60x10) 2x(60x10) 3x(60x10) 1x(60x10) 2x(60x10) 1x(60x10) 1x(60x10) 1x(60x10) 1x(100x10) 2x(100x10) 2x(100x10) 3x(100x10) 2x(100x10) 2x(100x10) 3x(100x10) 4x(100x10) 3x(100x10) 4x(100x10) 6x(100x10) 7x(100x10) Busbars section [mm2]

Horizontal and front terminals
Continuous capacity [A] 35°C 800 1000 1250 1550 800 1000 1250 1600 2000 1250 1600 800 1000 1250 1600 2000 2500 3000 2000 2375 3200 3600 3200 4000 4850 45°C 800 1000 1250 1450 800 1000 1250 1600 2000 1250 1500 800 1000 1250 1600 2000 2450 2880 2000 2270 3150 3510 3200 4000 4510 55°C 800 1000 1200 1350 800 1000 1250 1530 1750 1250 1400 800 1000 1250 1600 2000 2400 2650 1970 2100 3000 3150 3200 4000 4250 1x(60x10) 2x(60x8) 2x(60x8) 2x(60x10) 1x(60x10) 1x(60x10) 1x(60x10) 2x(60x10) 3x(60x10) 1x(60x10) 2x(60x10) 1x(60x10) 1x(60x10) 1x(60x10) 1x(100x10) 2x(100x10) 2x(100x10) 3x(100x10) 2x(100x10) 2x(100x10) 3x(100x10) 6x(60x10) 3x(100x10) 4x(100x10) 6x(100x10) Busbars section [mm2]

3

3/6

ABB SACE

Changing the rated uninterrupted current in relation to the temperature
Temperature derating
The circuit-breakers can operate at higher temperatures than their reference temperature (40 °C) under certain installation conditions. In these cases the current-carrying capacity of the switchgear should be reduced. The SACE Emax series of air circuit-breakers uses electronic releases which offer the benefit of great operating stability when subjected to temperature changes. The tables below show the current-carrying capacities of the circuit breakers (as absolute values and percentage values) in relation to their rated values at T = 40 °C.

SACE Emax E1
Temperature [°C] 10 20 30 40 45 50 55 60 65 70 E1 800 % [A] 100 100 100 100 100 100 100 100 100 100 800 800 800 800 800 800 800 800 800 800 E1 1000 % [A] 100 100 100 100 100 100 100 100 100 100 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 E1 1250 % [A] 100 100 100 100 100 100 100 100 99 98 1250 1250 1250 1250 1250 1250 1250 1250 1240 1230 E1 1600 % [A] 100 100 100 100 98 96 94 92 89 87 1600 1600 1600 1600 1570 1530 1500 1470 1430 1400

3

Iu [A]
1800 1600 1400 1200 1000 800 600 400 200 0 10 20 30 35 40 45 50 55 60 65 70

E1 1600

E1 1250

E1 1000 E1 800

T [°C]

ABB SACE

3/7

Changing the rated uninterrupted current in relation to the temperature
Temperature derating
SACE Emax E2
Temperature [°C] 10 20 30 40 45 50 55 60 65 70 E2 800 % [A] 100 100 100 100 100 100 100 100 100 100 800 800 800 800 800 800 800 800 800 800 E2 1000 % [A] 100 100 100 100 100 100 100 100 100 100 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 E2 1250 % [A] 100 100 100 100 100 100 100 100 100 100 1250 1250 1250 1250 1250 1250 1250 1250 1250 1250 E2 1600 % [A] 100 100 100 100 100 100 100 98 96 94 1600 1600 1600 1600 1600 1600 1600 1570 1538 1510 E2 2000 % [A] 100 100 100 100 100 97 94 91 88 85 2000 2000 2000 2000 2000 1945 1885 1825 1765 1705

Iu [A]
3500

3

3000 2500 2000 1500 1000 500 0 10 20 30 35 40 45 50 55 60 65 70

E2 2000 E2 1600 E2 1250 E2 1000 E2 800

T [°C]

3/8

ABB SACE

SACE Emax E3
Temperature [C°] 10 20 30 40 45 50 55 60 65 70 E3 800 % [A] 100 100 100 100 100 100 100 100 100 100 800 800 800 800 800 800 800 800 800 800 E3 1000 % [A] 100 100 100 100 100 100 100 100 100 100 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 E3 1250 % [A] 100 100 100 100 100 100 100 100 100 100 1250 1250 1250 1250 1250 1250 1250 1250 1250 1250 E3 1600 % [A] 100 100 100 100 100 100 100 100 100 100 1600 1600 1600 1600 1600 1600 1600 1600 1600 1600 E3 2000 % [A] 100 100 100 100 100 100 100 100 100 100 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000 E3 2500 % [A] 100 100 100 100 100 100 100 100 97 94 2500 2500 2500 2500 2500 2500 2500 2500 2425 2350 E3 3200 % [A] 100 100 100 100 100 97 93 89 86 82 3200 3200 3200 3200 3200 3090 2975 2860 2745 2630

Iu [A]
3500

E3 3200
3000 2500 2000 1500 1000 500 0 10 20 30 35 40 45 50 55 60 65 70

3

E3 2500 E3 2000 E3 1600 E3 1250 E3 1000 E3 800

T [°C]

ABB SACE

3/9

Changing the rated uninterrupted current in relation to the temperature
Temperature derating
SACE Emax E4
Temperature [°C] 10 20 30 40 45 50 55 60 65 70 E4 3200 % 100 100 100 100 100 100 100 100 98 95 [A] 3200 3200 3200 3200 3200 3200 3200 3200 3120 3040 % 100 100 100 100 100 98 95 92 89 87 E4 4000 [A] 4000 4000 4000 4000 4000 3900 3790 3680 3570 3460

Iu [A]
7000

3

6000 5000 4000 3000 2000 1000 0 10 20 30 35 40 45 50 55 60 65 70

E4 4000 E4 3200

T [°C]

3/10

ABB SACE

SACE Emax E6
Temperature [°C] 10 20 30 40 45 50 55 60 65 70 E6 3200 % [A] 100 100 100 100 100 100 100 100 100 100 3200 3200 3200 3200 3200 3200 3200 3200 3200 3200 E6 4000 % [A] 100 100 100 100 100 100 100 100 100 100 4000 4000 4000 4000 4000 4000 4000 4000 4000 4000 E6 5000 % [A] 100 100 100 100 100 100 100 98 96 94 5000 5000 5000 5000 5000 5000 5000 4910 4815 4720 E6 6300 % [A] 100 100 100 100 100 100 98 96 94 92 6300 6300 6300 6300 6300 6300 6190 6070 5850 5600

Iu [A]
7000 6000 5000 4000 3000 2000 1000 0 10 20 30 35 40 45 50 55 60 65 70

E6 6300

3

E6 5000 E6 4000 E6 3200

T [°C]

ABB SACE

3/11

Derating at different altitudes

SACE Emax air circuit-breakers do not undergo any changes in their rated performance up to an altitude of 2000 meters. As the altitude increases the atmospheric properties alter in terms of composition, dielectric capacity, cooling power and pressure. The performance of the circuit-breakers therefore undergoes derating which can be measured through the variation in significant parameters such as the maximum operating voltage and the rated uninterrupted current. The table below shows these values in relation to altitude.

Altitude Rated service voltage Rated current

H Ue In

[m] [V] [A]

<2000 690 In

3000 600

4000 500

5000 440

0.98xIn 0.93xIn 0.90xIn

3

3/12

ABB SACE

Current-limiting and specific let-through energy curves for E2L and E3L circuit-breakers
The current-limiting capacity of a current-limiting circuit-breaker indicates its greater or lesser capacity, under short-circuit conditions, to let through or make a current lower than the prospective fault current. This characteristic is shown by two different curves which indicate the following, respectively: ? the value of the specific energy ?I2t? (in A2s) let through by the circuit-breaker in relation to the uninterrupted symmetrical short-circuit current. ? the peak value (in kA) of the limited current in relation to the uninterrupted symmetrical short-circuit current. The graph shown at the side schematically indicates the trend of the uninterrupted current, with the relative established peak (curve B), and the trend of the limited current with the lowest peak value (curve A). Comparing the areas beneath the two curves shows how the specific let-through energy is reduced as a result of the limiting effects of the circuit breaker.

Ik

3

A B

peak limited Ik prospective Ik (peak value)

ABB SACE

3/13

1SDC200091F0001

Current-limiting and specific let-through energy curves for E2L and E3L circuit-breakers
E2L
Current-limiting curves

690 380/415

3

E2L
Specific let-through energy curves

690 380/415

lrms lp l2t

prospective symmetrical
1SDC200093F0001

short-circuit current peak current specific let-through energy at the voltages indicated

3/14

ABB SACE

1SDC200092F0001

E3L
Current-limiting curves

690 380/415

3

E3L
Specific let-through energy curves

690 380/415

lrms lp l2t

prospective symmetrical
1SDC200095F0001

short-circuit current peak current specific let-through energy at the voltages indicated

ABB SACE

3/15

1SDC200094F0001

Overcurrent releases and related accessories

Contents
Protection releases and trip curves PR121/P ............................................................................................................................... 4/2 PR122/P ............................................................................................................................... 4/9 PR123/P ............................................................................................................................... 4/24

Accessories for protection releases PR120/K Internal Module ..................................................................................................... 4/35 PR120/V Measurement Module ........................................................................................... 4/35 PR120/D-M Communication Module ................................................................................... 4/36 PR120/D-BT Wireless Communication Module .................................................................. 4/36 BT030 Communication unit .................................................................................................. 4/36 PR030/B power supply unit ................................................................................................. 4/36 Interface from front of HMI030 panel .................................................................................. 4/36 SACE PR010/T configuration test unit ................................................................................ 4/37 SACE PR021/K signalling unit .............................................................................................. 4/38

4

Communication devices and systems Industrial networking and ABB SACE Emax ....................................................................... 4/39 PR120/D-M ........................................................................................................................... 4/41 BT030 ................................................................................................................................... 4/41 EP 010 – FBP ....................................................................................................................... 4/41 SD-View 2000 ....................................................................................................................... 4/44 SD-Pocket ............................................................................................................................ 4/45 TestBus2 .............................................................................................................................. 4/46

ABB SACE

4/1

Protection releases and trip curves
PR121/P

Characteristics
PR121/P is the new basic and complete release for the Emax series. The complete range of protection functions together with the wide combination of thresholds and trip times offered make it suitable for protecting a wide range of alternating current installation. In addition to protection functions the unit is provided with multifunction LED indicators. Furthermore, PR121/P allows connection to external devices enhancing its advanced characteristics like remote signalling and monitoring, or remote supervision display.

16

17

8

6

5 7

1 2

10 11

20

21

26

24

15

4
1SDC200105F0001

19

18

9

4 3

12

22

13

23 14 25

Legend 1 LED signalling Alarm for 2 3 4 5 6 7 8

protection function L LED signalling Alarm for protection function S LED signalling Alarm for protection function I LED signalling Alarm for protection function G DIP switches for fine setting current threshold l1 DIP switches for main setting current threshold l1 DIP switches for setting current threshold I2 DIP switches for setting current threshold l3

9 DIP switches for setting current 10 11 12 13 14

15 16

threshold l4 DIP switches for setting trip time t1 (type of curve) DIP switches for setting trip time t2 (type of curve) DIP switches for setting trip time t4 (type of curve) Indication of the DIP switch position for network frequency Indication of the DIP switch position for Neutral protection setting Rating plug Indication of the DIP switch positions for the various current thresholds values l1

17 Indication of the DIP switch

18

19

20 21 22 23

positions for the various current threshold values l2 Indication of the DIP switch positions for the various current threshold values l3 Indication of the DIP switch positions for the various current threshold values l4 Indication of DIP switch positions for the various time settings t1 Indication of DIP switch positions for the various time settings t2 Indication of DIP switch positions for the various time settings t4 DIP switch for setting network frequency and neutral protection setting

24 Trip cause indication and trip test

pushbutton

testing the release through an external device (PR030/B battery unit, BT030 wireless communication unit and SACE PR010/T unit) 26 Serial number of protection release

25 Test connector for connecting or

4/2

ABB SACE

Operation and protection functions
Protection functions

The PR121 release offers the following protection functions: ? overload (L) ? selective short-circuit (S) ? instantaneous short-circuit (I) ? earth fault (G).
Overload (L)

The inverse long time-delay trip overload protection L is type l2t = k; 25 current thresholds and 8 curves are available. Each curve is identified by the trip time in relation to the current l = 3 x l1 (l1 = set threshold).
Selective short-circuit (S)

15 current thresholds and 8 curves are available, allowing a fine setting. Each curve is identified as follows: ? for curves t = k by the trip time for l > I2 ? for curves t = k/l2 by the trip time for l = 10xln (ln = rated current of the circuitbreaker). The function can be excluded by setting the DIP switches to the combination labelled ?OFF?.
Adjustable instantaneous short-circuit (l)

4 curves. Each curve is identified by the time t4 in relation to current I4. As per S protection the trip time can be chosen independent of the current (t = k) or with a constant specific let-through energy (t = k/l2). Note: the current values above which G is disabled are indicated in the installation manual.

The selective short-circuit protection S can be set with two different types of curves with a trip time independent of the current (t = k) or with a constant specific let-through energy (t = k/l2).

The protection I offers 15 trip thresholds and can be excluded (dip switches in ?OFF? position).
Earth fault (G)

4

The earth fault protection G (which can be excluded) offers 7 current thresholds and

t

t

t=

k I2

t=

k I2

t=k
1SDC200116F0001

t=k
I I
1SDC200117F0001

ABB SACE

4/3

Protection releases and trip curves
PR121/P

User interface

The user communicates directly with the release in the trip parameter preparation stage by means of the dip switches. Up to four LEDs (according to the version) are also available for signalling. These LEDs (one for each protection) are active when: ? a protection is timing. For protection L the prealarm status is also shown; ? a protection has tripped (the corresponding LED is activated by pressing the ?Info/Test? pushbutton); ? a failure in connection of a current sensor or in the opening solenoid is detected. The indication is active when the unit is powered (through current sensors or an auxiliary power supply) ? wrong rating plug for the circuit-breaker. The protection tripped indication works even with the circuit-breaker open, without the need for any internal or external auxiliary power supply. This information is available for 48 hours of inactivity after the trip and is still available after reclosing. If the query is made more than 48 hours later it is sufficient to connect a PR030/B battery unit, PR010/T, or a BT030 wireless communication unit.
Communication

4

By means of the BT030 wireless communication unit, PR121/P can be connected to a pocket PC (PDA) or to a personal computer, extending the range of information available for the user. In fact, by means of ABB SACE?s SD-Pocket communication software, It is possible to read the values of the currents flowing through the circuit-breaker, the value of the last 20 interrupted currents, and the protection settings. PR121 can also be connected to the optional external PR021/K signalling unit, for the remote signalling of protections alarms and trips, and to HMI030, for the remote user interfacing.
Setting the neutral

Protection of the neutral can be set at 50%, 100% or 200% of the phase currents. Settings above 50% can be selected for E1-E2-E3-E4/f and E6/f. In particular, setting the neutral at 200% of phase current requires protection L to be set at 0.5In in order to respect the current-carrying capacity of the circuit-breaker. The user can also switch the neutral protection OFF. When threepoles circuit-breakers with external neutral current sensor are used, a setting above 100% for the neutral does not require any reduction in the L setting.
Test Function

The Test function is carried out by means of the info/Test pushbutton and the PR030/B battery unit (or BT030) fitted with a polarized connector housed on the bottom of the box, which allows the device to be connected to the test connector on the front of PR121/P releases. The PR121/P electronic release can be tested by using the SACE PR010/T test and configuration unit by connecting it to the TEST connector.

4/4

ABB SACE

Versions available

The following versions are available:

PR121/P LI

1SDC200106F0001

4

PR121/P LSI

PR121/P LSIG

ABB SACE

4/5

1SDC200105F0001

1SDC200107F0001

Protection releases and trip curves
PR121/P

Protection functions and setting values - PR121
Function
Overload protection

Trip threshold
I1= 0,4 - 0.425 - 0.45 - 0.475 - 0.5 0.525 - 0.55 - 0.575 - 0.6 - 0.625 0.65 - 0.675 - 0.7 - 0.725 - 0.75 0.775 - 0.8 - 0.825 - 0.85 - 0.875 0.9 - 0.925 - 0.95 - 0.975 - 1 x In Release between 1.05 and 1.2 x I1 I2= 1 - 1.5 - 2 - 2.5 - 3 - 3.5 - 4 - 5 6 - 7 - 8 - 8.5 - 9 - 9.5 - 10 x In ± 7% ± 10% If ? 6 x In If > 6 x In

Trip time
With current I = 3 x I1 t1 = 3 - 12 - 24 - 36 - 48 - 72 - 108 - 144 s
(1)

Poss. excl.


Relation t=f(I)
t=k/I2

Tolerance (2) Selective short-circuit protection Tolerance (2)

± 10% If ? 6 x In ± 20% If > 6 x In With current I > I2 t2 = 0.1 - 0.2 - 0.3 - 0.4 - 0.5 - 0.6 - 0.7 - 0.8 s The better of the two figures: ± 10% or ± 40 ms With current I = 10 x In t2 = 0.1 - 0.2 - 0.3 - 0.4 - 0.5 - 0.6 - 0.7 - 0.8 s ± 15% If ? 6 x In ± 20% If > 6 x In Instantaneous ? 30 ms t4 = 0.15 @ 4.47 In, t4 = 0.25 @ 3.16 In, t4 = 0.45 @ 2.24 In ± 15% With current I > I4 t4 = 0.1 - 0.2 - 0.4 - 0.8 s The better of the two figures: ± 10% or ± 40 ms ■ t=k ■ t=k/I2 ■ t=k ■ t=k/I2 ■ t=k

I2= 1 - 1.5 - 2 - 2.5 - 3 - 3.5 - 4 - 5 6 - 7 - 8 - 8.5 - 9 - 9.5 - 10 x In Tolerance (2) Instantaneous short-circuit protection Tolerance Earth fault protection Tolerance (2)
(2)

± 7% ± 10%

If ? 6 x In If > 6 x In

I3= 1.5 - 2 - 3 - 4 - 5 - 6 - 7 - 8 9 - 10 - 11 - 12 - 13 - 14 - 15 x In ± 10% I4= 0.2 - 0.3 - 0.4 - 0.6 0.8 - 0.9 - 1 x In ± 7% I4= 0.2 - 0.3 - 0.4 - 0.6 0.8 - 0.9 - 1 x In

Tolerance

(2)

± 7%

4
(1) The minimum trip time is 1 s, regardless of the type of curve set (self-protection) (2) These tolerances are valid in the following conditions: - self-supplied release at full power (without start-up) - two- or three-phase power supply - trip time set

? 100 ms

The following tolerance values apply in all cases not covered by the above:

Trip threshold
L Release between 1.05 and 1.25 x I1

Trip time
± 20%

S I G

± 10% ± 15% ± 15%

± 20% ? 60ms ± 20%

Power supply

The unit does not require an external power supply either for protection functions or for alarm signalling functions. It is self-supplied by means of the current sensors installed on the circuitbreaker. For it to operate, it is sufficient for at least one phase to be loaded at 100A. An external power supply can be connected in order to activate additional features, and in particular for connection to external devices: HMI030, and PR021/K.
PR121/P
Auxiliary power supply (galvanically insulated) Maximum ripple Inrush current @ 24V Rated power @ 24V 24 V DC ± 20% 5% ~10 A for 5 ms ~2 W

4/6

ABB SACE

Functions L-I

1SDC200100F0001

4

Functions L-S-I

t=

k I2

Threshold and trip times tolerances ........................ page 4/6

ABB SACE

4/7

1SDC200101F0001

Protection releases and trip curves
PR121/P

Functions L-S-I

t=k

4
Function G

t=

k I2

t=k
1SDC200103F0001

Threshold and trip times tolerances ........................ page 4/6

4/8

ABB SACE

1SDC200102F0001

Protection releases and trip curves
PR122/P

Characteristics
The SACE PR122 release is a sophisticated and flexible protection system based on a state-ofthe art microprocessor and DSP technology. Fitted with the optional internal PR120/D-M dialogue unit, PR122/P turns into an intelligent protection, measurement and communication device, based on the Modbus? protocol. By means of the PR120/D-M, PR122/P can also be connected to the ABB EP010 Fieldbus plug adapter, which makes it possible to choose among several different networks, such as Profibus and DeviceNet. The new PR122/P is the result of ABB SACE?s experience in designing protection releases. The exhaustive range of settings makes this protection unit ideal for general use in any type of installation, from distribution to the protection of motors, transformers, drives and generators. Access to information and programming using a keyboard and graphic liquid crystal display is extremely simple and intuitive. The interface is now common to PR122/P and PR123/P in order to give to the user maximum ease of use. An integrated ammeter and many other additional features are provided over and above the protection functions. These additional functions can be further increased with addition on board of the dialogue, signalling, measurement, and wireless communication units. Functions S and G can operate with a time delay independent of the current (t = k) or with an inverse time delay (constant specific let-through energy: I2t = k), as required. Protection against earth faults can also be obtained by connecting the PR122 release to an external toroid located on the conductor that connects the transformer star centre to earth (homopolar toroid). All the thresholds and trip curve delays of the protection functions are stored in special memories which retain the information even when no power is supplied.
1 2 3 10 9

4

8

4

5

7

6

Legend 1 LED Warning indicator 2 Alarm LED 3 Rear-lit graphic display 4 Cursor UP button 5 Cursor DOWN button

testing the release by means of an external device (PR030/B battery unit, BT030 wireless communication unit and SACE PR010/T unit) 7 ENTER button to confirm data or change pages

6 Test connector for connecting or

8 Button to exit submenus or cancel

operations (ESC)

9 Rating plug 10 Serial number of protection

release

ABB SACE

4/9

1SDC200108F0001

Protection releases and trip curves
PR122/P

Operation, protection functions and self-test
Basic Protection functions

The PR122 release offers the following protection functions (according to the version): ? overload (L) ? selective short-circuit (S) ? instantaneous short-circuit (I) ? earth fault (G)(2) ? phase unbalance (U) ? self-protection against overtemperature (OT) ? thermal memory for functions L and S ? zone selectivity for functions S and G ? residual current (Rc) with external toroid ? source ground return with external toroid

sion. The neutral protection can be excluded or set to 100% for E1, E2, E3, E4/f and E6/f. In installations where very high harmonics occur, the resulting current at the neutral can be higher than that of the phases. Therefore it is possible to set the neutral protection at 150% or 200% of the value set for the phases. In this case it is necessary to reduce the setting of protection L accordingly(1). The table below lists the neutral settings for the various possible combinations between type of circuit-breaker and the threshold I1 setting.
Start-up function

avoids untimely tripping caused by the high inrush currents of certain loads (motors, transformers, lamps). The start-up phase lasts from 100 ms to 1.5 s, in steps of 0.05 s. It is automatically recognized by the PR122 release as follows: ? when the circuit-breaker closes with the release selfsupplied; ? when the peak value of the maximum current exceeds 0.1 x In. A new start-up becomes possible after the current has fallen below the threshold of 0.1 x In, if the release is supplied from an external source.

4

Setting the neutral

In PR122/P, and PR123/P as well, the neutral protection is 50% of the value set for phase protection in the standard ver-

The start-up function allows protections S, I and G to operate with higher trip thresholds during the start-up phase. This

Adjustable neutral protection settings
Circuit-breaker model E1B-N E2B-N-S-L E3N-S-H-V-L E4S-H-V E4S/f-H/f E6H-V E6H/f Threshold I1 settings (overload protection) 0.4 ? I1 ? 0.5 0.5 < I1 ? 0.66 0-50-100-150-200% 0-50-100-150% 0-50-100-150-200% 0-50-100-150% 0-50-100-150-200% 0-50-100-150% 0-50-100% 0-50% 0-50-100-150-200% 0-50-100-150% 0-50-100% 0-50% 50-100-150-200% 0-50-100-150% 0.66 < I1 ? 1(*) 0-50-100% 0-50-100% 0-50-100% 0-50% 0-50-100% 0-50% 0-50-100%

(*) The setting I1 =1 indicates the maximum overload protection setting. The actual maximum setting allowable must take into account any derating based on temperature, the terminals used and the altitude (see the ?Installations? chapter) (1) When three-pole circuit-breakers with external neutral current sensor are used, a setting above 100% for the neutral does not require any reduction in the L setting up to Iu N. (2) The current values above which G is disabled are indicated in the installation manual.

4/10

ABB SACE

Phase unbalance protection U

Protection function U against phase unbalance is used in those situations requiring particularly precise control over missing and/or unbalanced phase currents, only givin the pre-alarm signal. This function can be excluded.
Protection against overtemperature

The range of SACE PR122 releases allows the presence of abnormal temperatures, which could cause temporary or continuous malfunctions of the microprocessor, to be signalled to the user. The user has the following signals or commands available: ? lighting up of the ?Warning? LED when the temperature is higher than 70 °C (temperature at which the microprocessor is still able to operate correctly) ? lighting up of the ?Alarm? LED when the temperature is higher than 85 °C (temperature above which the microprocessor can no longer guarantee correct operation) and, when decided during the unit configuration stage, simultaneous opening of the circuit-breaker with indication of the trip directly on the display, as for the other protections.
Zone selectivity for protections S and G

Zone selectivity is one of the most advanced methods for making co-ordination of the protections: by using this protection philosophy, it is possible to reduce the trip times of the protection closest to the fault in relation to the times foreseen by time selectivity, of which zone selectivity is an evolution. Zone selectivity is applicable to protection functions S and G, even contemporarily and is available as standard on the PR122. The word zone is used to refer to the part of an installation between two circuit-breakers in series (see picture beside). Protection is provided by connecting all of the zone selectivity outputs of the releases belonging to the same zone together and taking this signal to the zone selectivity input of the release immediately to the supply side. Each circuit-breaker that detects a fault communicates this to the circuit-breaker on the supply side using a simple connection wire. Therefore the fault zone is the zone immediately to the load side of the circuit-breaker that detects the fault, but does not receive any communication from those on the load side. This circuit-breaker opens without waiting for the set time-delay. ABB SACE provides important calculation tools to facilitate the work of designers in coordinating protection devices, including the Slide rule kits, DOCWin and CAT software packages and updated coordination charts. The zone selectivity function S and G can be activated or deactivated using the keyboard.
1SDC200186F0001

4

ABB SACE

Zone 3

Zone 2

Zone 1

4/11

Protection releases and trip curves
PR122/P

Self-diagnosis

The PR122 range of releases contains an electronic circuit which periodically checks the continuity of internal connections (opening solenoid or each current sensor, including the Source Ground Return when present). In the case of a malfunction an alarm message appears directly on the display. The Alarm is highlighted by the Alarm LED as well.
Residual Current

Different solutions are available for integrated residual current protection. The basic choice is PR122/P-LSIRc, which has all the characteristics of PR122/P-LSI and residual current protection as well. When additional features are required, the solution is PR122/P LSIG with an additional PR120/V module (see next paragraph). Using this configuration, residual current protection is added to a unit, having the features of PR122/P-LSI and all the add-ons described for the PR120/ V module, such as voltage protection and advanced measurement functions. Residual current protection acts by measuring the current from the external dedicated toroid. Rc protection can be activated only if the special rating plug for residual current protection is present.
Test Functions

4

Once enabled from the menu, the ?info/Test? pushbutton on the front of the release allows correct operation of the chain consisting of the microprocessor, opening solenoid and circuit-breaker tripping mechanism to be checked. The control menu also includes the option of testing correct operation of the display, signalling LEDs, and electrical contacts of the PR120/K release. When the auxiliary power supply is not present, the PR030/B unit can perform the trip test. By means of the front multi-pin connector it is possible to apply a SACE PR010/T Test unit which allows the functions of the PR121, PR122 and PR123 ranges of releases to be tested and checked.
User interface

The human-machine interface (HMI) of the device is made up of a wide graphic display, LEDs, and browsing pushbuttons. The interface is designed to provide maximum simplicity. The language can be selected from among five available options: Italian, English, German, French and Spanish. As in the previous generation of releases, a password system is used to manage the ?Read? or ?Edit? modes. The default password, 0001, can be modified by the user. The protection parameters (curves and trip thresholds) can be set directly via the HMI of the device. The parameters can only be changed when the release is operating in ?Edit? mode, but the information available and the parameter settings can be checked at any time in ?Read? mode. When a communication device (internal PR120/D-M and PR120/D-BT modules or external BT030 device) is connected, it is possible to set parameters simply by downloading them into the unit (over the network for PR120/D-M, by using the SD-Pocket software and a PDA or a notebook for PR120/D-BT and BT030). Parameterisation can then be carried out quickly and automatically in an error-free way by transferring data directly from DocWin.
Indicator LEDs

LEDs on the front panel of the release are used to indicate all the pre-alarms (?WARNING?) and alarms (?ALARM?). A message on the display always explicitly indicates the type of event concerned. Example of events indicated by the ?WARNING? LED: ? unbalance between phases; ? pre-alarm for overload (L1>90%); ? first temperature threshold exceeded (70 °C); ? contact wear beyond 80%; ? phase rotation reversed (with optional PR120/V)

4/12

ABB SACE

Example of events indicated by the ?ALARM? LED: ? overload (may begin from 1.05xl1<I<1.3xl1, in accordance with the standard IEC 60947-2); ? timing of function L; ? timing of function S; ? timing of function G; ? second temperature threshold exceeded (85 °C); ? contact wear 100%; ? timing of Reverse Power flow protection (with optional PR120/V);
Data logger

By default PR122/P, as well as PR123/P, is provided with the Data Logger function, that automatically records in a wide memory buffer the instantaneous values of all the currents and voltages. Data can be easily downloaded from the unit by means of SD-Pocket or TestBus2 applications using a Bluetooth port and can be transferred to any personal computer for elaboration. The function freezes the recording whenever a trip occurs, so that a detailed analysis of faults can be easily performed. SD-Pocket and TestBus2 allow also reading and downloading of all the others trip information. ? Number of channels: 8 ? Maximum sampling rate: 4800 Hz ? Maximum sampling time: 27 s (? sampling rate 600 Hz) ? 64 events tracking
Trip information and opening data

In case a trip occurs PR122/P and PR123/P store all the needed information: ? Protection tripped ? Opening data (current) ? Time stamp (guaranteed with auxiliary supply or self-supply with power failure no longer than 48h) By pushing the ?info/Test? pushbutton the release shows all these data directly on display. No auxiliary power supply is needed. The information is available to user for 48 hours with the circuit breaker open or without current flowing. The information of the latest 20 trips are stored in memory. If the information can be furthermore retrieved more than 48 hours later, it is sufficient to connect a PR030/B battery unit or a BT030 wireless communication unit.
Load control

4

Load control makes it possible to engage/disengage individual loads on the load side before the overload protection L is tripped, thereby avoiding unnecessary trips of the circuit-breaker on the supply side. This is done by means of contactors or switch-disconnectors (externally wired to the release), controlled by the PR122/P by PR120/K internal contacts, or by PR021/K unit. Two different Load Control schemes can be implemented: ? disconnection of two separate loads, with different current thresholds ? connection and disconnection of a load, with hysteresis Current thresholds and trip times are smaller than those available for selection with protection L, so that load control can be used to prevent overload tripping. Internal PR120/K or external PR021/K accessory unit is required for Load Control. The function is only active when an auxiliary power supply is present.

ABB SACE

4/13

Protection releases and trip curves
PR122/P

PR120/V Measurement Module

1SDC200114F0001

This optional internal module, installed in PR122 (standard in PR123), allows the release to measure the phase and neutral voltages and to process them in order to achieve a series of features, in terms of protection and measurement. PR120/V does not normally require any external connection or Voltage Transformer, since it is connected internally to the lower terminals of Emax. When necessary, the connection of voltage pick-ups can be moved to any other points (i.e. upper terminals), by using the alternative connection located in the terminal box. The module is provided with a sealable switch-disconnector for the dielectric test. PR120/V is able to energize the PR122 while line voltage input is above 85V. The use of Voltage Transformers is mandatory for rated voltages higher than 690V. Voltage transformers shall have burdens equal to 10VA and accuracy class 0.5 or better. Additional Protections with PR120/V: ? UnderVoltage (UV) protection ? Overvoltage (OV) protection ? Residual voltage (RV) protection ? Reverse power (RP) protection ? Underfrequency (UF) protection ? Overfrequency (OF) protection ? Phase sequence (alarm only) All the above indicated protections can be excluded, although it is possible to leave only the alarm active when required. With the circuit-breaker closed, these protections also operate when the release is self-supplied. With the circuit-breaker open, they operate when the auxiliary power supply (24V DC or PR120/V) is present: in this case the release will indicate the ?ALARM? status.
Voltage protections UV, OV, RV

4

With the PR120/V module, the PR122/P release is able to provide the undervoltage and overvoltage protection (UV, OV) and the residual voltage protection (RV). The residual voltage protection RV identifies interruptions of the neutral (or of the earthing conductor in systems with earthed neutral) and faults that shift the star centre in systems with insulated neutral (e.g. large earth faults). The star centre shift is calculated as a vectorial sum of the phase voltages.
Reverse power protection RP

Reverse power protection is especially suitable for protecting large machines such as motors and generators. The PR122 with the PR120/V module can analyse the direction of the active power and open the circuit-breaker if the direction is opposite to that of normal operation. The reverse power threshold and the trip time are adjustable.
Frequency protections UF, OF

The frequency protections detect the variation of network frequency above adjustable thresholds, generating an alarm or opening the circuit-breaker. It is a protection typically needed in an isolated network, i.e. powered by a genset.

4/14

ABB SACE

Measurement function

The current measurement function (ammeter) is present on all versions of the SACE PR122 unit. The display shows histograms showing the currents of the three phases and neutral on the main page. Furthermore, the most loaded phase current is indicated in numerical format. Earth fault current, where applicable, is shown on a dedicated page. The latter current value takes on two different meanings depending on whether the external toroidal transformer for the ?Source Ground Return? function or the internal transformer (residual type) is connected. The ammeter can operate either with self-supply or with an auxiliary power supply voltage. In the latter case the display is rear-lit and the ammeter is active even at current levels lower than 160A. Accuracy of the ammeter measurement chain (current sensor plus ammeter) is no more than 1.5% in the 30% - 120% current interval of In. ? Currents: three phases (L1, L2, L3), neutral (Ne) and earth fault; ? Instantaneous values of currents during a period of time (data logger); ? Maintenance: number of operations, percentage of contact wear, opening data storage (last 20 trips and 20 events). When the optional PR120/V is connected the following additional measurement function are present: ? Voltage: phase-phase, phase-neutral and residual voltage ? Instantaneous values of voltages during a period of time (data logger); ? Power: active, reactive and apparent ? Power factor ? Frequency and peak factor ? Energy: active, reactive, apparent, counter

4

Versions available

The following versions are available:

PR122/P LI-LSI-LSIG-LSIRc

ABB SACE

4/15

1SDC200113F0001

Protection releases and trip curves
PR122/P

Protection functions and setting values - PR122
Function
Overload protection Tolerance (2)

Trip threshold
I1= 0.4….1 x In Release between 1.05 and 1.2 x I1 I1= 0,4….1 x In Release between 1,05 ... 1,2 x I1 I2= 0.6….10 x In ± 7% If ? 6 x In ± 10% If > 6 x In I2= 0.6….10 x In ± 7% If ? 6 x In ± 10% If > 6 x In

Threshold steps
0.01 x In

Trip Time
With current I = 3 x I1 t1= 3 s....144 s ± 10% If ? 6 x In ± 20% If > 6 x In With I = 3xI1(4); t1= 3 s....144 s ± 20% If > 5 x I1 ± 30% 2xI1? If ? 5 x I1 In With current I > I2 t2= 0.05 s….0.8 s t2sel= 0,04 s…..0,2 s The better of the two figures: ± 10% or ± 40 ms With current I = 10 x In t2= 0.05 s….0.8 s ± 15% If ? 6 x In ± 20% If > 6 x In

Time Step
3s
(1)

Poss. excl. –

Relation
t=f(I) t=k/I2

Thermal Zone memory selectivity
■ –

0,01 x In

3s

(1)



Tolerance (2) Selective shortcircuit protection Tolerance
(2)

t=k(a) (5) a = 0,2-1-2

0.1 x In

0.01 s 0,01 s



t=k





0.1 x In

0.01 s



t=k/I2





Tolerance (2) Instantaneous short-circuit protection Tolerance (2) Earth fault protection Tolerance (2)

I3= 1.5….15 x In ± 10% I4(6)= 0.2….1 x In ± 7% I4= 0.2….1 x In ± 7%

0.1 x In

Instantaneous ? 30 ms With current I > I4 t4= 0.1 s…..1 s t4sel= 0,04 s…..0,2 s The better of the two figures: ± 10% or ± 40 ms





t=k





0.02 x In

0.05 s 0,01 s



t=k





4
Rc
OT U

0.02 x In

Tolerance (2) Residual Current protection (7) Tolerance (2) Protection against overtemperature Phase unbalance protection Tolerance (2)

t4= 0.1 s…..1 s (with I=4xI4) ± 15% td= 0.06-0.1-0.2-0.3-0.40.5-0.8 s (3)

0.05 s



t=k/I2





Id= 3-5-7-10-20-30 A ± 10% may not be set I6= 5%….90% ± 10% – 5%



t=k





Instantaneous t4= 0.5 s…..60 s The better of the two figures: ± 20% or ± 100 ms

– 0.5 s

– ■

temp=k t=k

– –

– –

(1) The minimum trip value is 1 s, regardless of the type of curve set (self-protection) (2) These tolerances are valid in the following conditions: - self-supplied release at full power and/or auxiliary power supply (without start-up) - two- or three-phase power supply - trip time set

? 100 ms

(3) Non intervention time (4) In accordance with IEC 60255-3 (5) t = (3a - 1) (I/I1)a -1

? t1

(6) The minimum trip threshold for the G ext protection with SRG toroid is 0,1 In (7) If selected, Rc protection with PR122/LSIG + PR120/V and special rating plug, can replace G protection. The following tolerance values apply in all cases not covered by the above:

Trip threshold

Trip time

L Release between 1.05 and 1.25 x I1 ± 20% S ± 10% ± 20% I ± 15% ? 60ms G ± 15% ± 20% Others ± 20%

4/16

ABB SACE

Additional Protection functions and setting values - PR122 with PR120/V
Function
Undervoltage protection Tolerance (1) Overvoltage protection Tolerance (1) Residual voltage protection Tolerance (1) Reverse power protection Tolerance (1) Underfrequency protection Tolerance (1) Overfrequency protection Tolerance (1)

Trip threshold
I8= 0.5….0.95 x Un

Threshold steps
0.01 x Un

Trip Time
With current U < U8 t8= 0.1 s....5 s The better of the two figures: ± 20% or ± 100 ms With current U > U9 t9= 0.1 s....5 s The better of the two figures: ± 20% or ± 100 ms With current U0 > U10 t10= 0.5 s....30 s The better of the two figures: ± 10% or ± 100 ms With current P < P11 t11= 0.5 s....25 s The better of the two figures: ± 10% or ± 100 ms With current f < f12 t9= 0.5 s....3 s The better of the two figures: ± 10% or ± 100 ms With current f > f13 t10= 0.5 s....3 s The better of the two figures: ± 10% or ± 100 ms

Time Step
0.1 s

Poss. excl. ■

Relation
t=f(I) t=k

UV

± 5%
OV

I9= 1.05….1.2 x Un

0.01 x Un

0.1 s



t=k

± 5%
RV

I10= 0.1….0.4 x Un

0.05 x Un

0.5 s



t=k

± 5%
RP

P11= -0.3….-0.1 x Pn

0.02 x Pn

0.1 s



t=k

± 5%
UF

f12= 0.90….0.99 x fn

0.01 x fn

0.1 s



t=k

± 5%
OF

f13= 1.01….1.10 x fn

0.01 x fn

0.1 s



t=k

± 5%

(1) These tolerances are valid in the following conditions: - self-supplied release at full power and/or auxiliary power supply (without start-up) - two- or three-phase power supply

4

Power supply

The PR122 release does not normally require any external power supplies, being self-supplied from the current sensors (CS): a three-phase 70 A current is sufficient to activate the protection functions and the ammeter, whereas three-phase 160 A are required to turn the display on. Once the display is turned on, the minimum current for visualisation is I > 5% of the rating plug. The unit ensures fully self-supplied operation. When an auxiliary power supply is present, it is also possible to use the unit with the circuit-breaker either open or closed with very low current flowing through. It is also possible to use an auxiliary power supply provided by the PR030/B portable battery unit (always supplied), which allows the protection functions to be set when the release is not selfsupplied. PR122/P stores and shows all the information needed after a trip (protection tripped, trip current, time, date). No auxiliary supply is required for this functionality.
PR122/P
Auxiliary power supply (galvanically insulated) Maximum ripple Inrush current @ 24V Rated power @ 24V
24 V DC ± 20% 5% ~10 A for 5 ms ~3 W

PR120/D-M
from PR122/PR123

PR120/K
from PR122/PR123

PR120/D-BT
from PR122/PR123

+1 W

+1 W

+1 W

(*) PR120/V can give power supply to the release when at least one line voltage is equal or higher to 85V RMS.

ABB SACE

4/17

Protection releases and trip curves
PR122/P

Functions L-I

4
Functions L-S-I

t=

k I2

Threshold and trip times tolerances ...................... page 4/16

4/18

ABB SACE

1SDC200110F0001

1SDC200109F0001

Functions L-S-I

t=k

1SDC200111F0001

4

Function L
According to IEC 60255-3

t [s]

10 4

10 3

k = 0,14 a = 0,02

10 2

10

1

10 -1
Threshold and trip times tolerances ...................... page 4/16

10 -1

1

10

100 x In

ABB SACE

4/19

1SDC200118F0001

Protection releases and trip curves
PR122/P

Function L
According to IEC 60255-3

t [s]

10 4

10 3

k = 13,5 a=1

10 2

10

1

4
Function L
According to IEC 60255-3

10 -1

10 -1

1

10

100 x In

t [s]

10 4

10 3

k = 80 a=2

10 2

10

1

10 -1
Threshold and trip times tolerances ...................... page 4/16

10 -1

1

10

100 x In

4/20

ABB SACE

1SDC200120F0001

1SDC200119F0001

Function G

t=

k I2

t=k
1SDC200112F0001

4

Function U

U

Threshold and trip times tolerances ...................... page 4/16

ABB SACE

4/21

1SDC200122F0001

Protection releases and trip curves
PR122/P

Function UV
UV

4
Function OV
OV

Threshold and trip times tolerances ...................... page 4/16

4/22

ABB SACE

1SDC200124F0001

1SDC200123F0001

Function RV

RV

1SDC200125F0001

4

Function RP

RP

Threshold and trip times tolerances ...................... page 4/16

ABB SACE

4/23

1SDC200126F0001

Protection releases and trip curves
PR123/P

Characteristics
The PR123 protection release completes the range of releases available for the Emax family of circuit-breakers. It is a high-performance and extraordinarily versatile release, capable of offering a complete set of functions for protection, measurement, signalling, data storage and control of the circuit-breaker, and it represents the benchmark in low voltage protection units for circuit-breakers. The front interface of the unit, common to PR122/P, is extremely simple thanks to the aid of the liquid crystal graphics display. It can show diagrams, bar graphs, measurements and sine curves for the various electrical values. PR123 integrates all the features offered by PR122/P plus a series of evolute functionalities. As well as PR122 it can be integrated with the additional features provided by internal modules and external accessories.

4

12

11

1 2

3

10

9

8

4

5

7

6

Legend 1 LED Warning indicator 2 Alarm LED 3 Rear-lit graphic display 4 Cursor UP button 5 Cursor DOWN button

testing the release by means of an external device (PR030/B battery unit, BT030 wireless communication unit and SACE PR010/T unit) 7 ENTER button to confirm data or change pages

6 Test connector for connecting or

8 Button to exit submenus or cancel

operations (ESC)

9 Rating plug 10 Serial number of protection release 11 Power LED 12 Voltage uptake switch-disconnector

4/24

ABB SACE

1SDC200115F0001

Protection functions
The PR123 release offers the following protection functions: ? overload (L) (1), ? selective short-circuit (S), ? instantaneous short-circuit (I), ? earth fault with adjustable delay (G) (2), ? directional short-circuit with adjustable delay (D), ? phase unbalance (U), ? protection against overtemperature (OT), ? load control (K), ? undervoltage (UV), ? overvoltage (OV), ? residual voltage (RV), ? reverse power (RP), ? underfrequency (UF), ? overfrequency (OF), ? phase sequence (alarm only). In addition to PR122/P features, the following improvements are available:
Double selective short-circuit protection S

Notes:
(1) In accordance also with IEC 60255-3 Standard. (2) The current values above which G is disabled are indicated in the installation manual.

In addition to the standard S protection, PR123/P makes contemporarily available a second time-constant S protection (excludible) that allows two thresholds to be set independently achieving an accurate selectivity even under highly critical conditions.
Double earth fault protection G

4

While in PR122/P the user must choose among the implementation of G protection through internal current sensors (calculating the vectorial sum of currents) or external toroid (direct earth fault current measuring), PR123/P offers the exclusive feature of the contemporaneous management of both the configuration, by means of two independent earth fault protections curves. The main application of this characteristic is simultaneous activation of restricted and unrestricted earth fault protection. See chapter 6 for details.
Directional short-circuit protection with adjustable delay D

The protection works in a similar way to the fixed-time protection ?S?, with the added ability to recognize the direction of the phases current during the fault period. The current direction makes it possible to determine whether the fault is on the supply or load side of the circuit-breaker. Particularly in ring distribution systems, this makes it possible to identify and disconnect the distribution segment where the fault has occurred, whilst keeping the rest of the installation running. If multiple PR122 or PR123 releases are used, this protection can be associated with zone selectivity.

ABB SACE

4/25

Protection releases and trip curves
PR123/P

Dual setting of protections

PR123/P can store an alternative set of all the protection parameters. This second set (set B) can replace, when needed, the default set (set A) by means of an external command. The command can be given typically when network configuration is modified, like when a parallel of incoming lines is closed or when an emergency source is present in the system, changing load capability and short-circuit levels. The set B can be activated by: ? digital input provided with PR120/K module. For example It can be connected to an auxiliary contact of a bus-tie ? communication network, through PR120/D-M (i.e. when the changeover is scheduled); ? directly from user interface of PR123/P ? an adjustable time internal after closing of the circuit-breaker.
Zone selectivity function

Notes:
The directional short-circuit protection can be disabled for an adjustable set time (t = k), and can either be self-supplied or use the auxiliary power supply. Directional protection is not available on 400A rating.

4

The zone selectivity function allows the fault area to be insulated by segregating the system very rapidly only at the level closest to the fault, whilst leaving the rest of the installation running. This is done by connecting the releases together: the release nearest the fault is tripped instantly, sending a block signal to the other releases affected by the same fault The zone selectivity function can be enabled if the fixed-time curve has been selected and an auxiliary power supply is present. Zone selectivity can be applied with protections S and G or, alternatively, with protection D.
Measurement functions

The PR123 release provides a complete set of measurements: ? Currents: three phases (L1, L2, L3), neutral (Ne) and earth fault ? Voltage: phase-phase, phase-neutral and residual voltage ? Power: active, reactive and apparent ? Power factor Ip ? Frequency and peak factor, ( Irms ) ? Energy: active, reactive, apparent, counter ? Harmonics calculation: up to the 40th harmonic (waveform and module of the harmonics displayed); up to the 35th for frequency f = 60Hz ? Maintenance: number of operations, percentage of contact wear, opening data storage. The PR123 unit is able to provide the pattern of measurements for some values over an adjustable period of time P, such as: mean active power, maximum active power, maximum current, maximum voltage and minimum voltage. The last 24 P periods (adjustable from 5 to 120 min.) are stored in a non-volatile memory and displayed in a bar graph.
Other Functions

PR123/P integrates all the features (in terms of protection, measurement, signaling and communication) described for PR122/P equipped with PR120/V. With PR123/P-LSIG, when the special rating plug for residual current protection and the external toroid are activate, the earth fault protection, if selected, can replace Gext protection, while G protection keep on being active.

4/26

ABB SACE

Protection functions and setting values - PR123
Function Overload protection Tolerance (2)

Trip threshold
I1= 0.4….1 x In Release between 1.05 and 1.2 x I1 I1= 0.4….1 x In Release between 1.05 ... 1.2 x I1

Threshold Trip steps Time
0.01 x In With current I = 3xI1 t1= 3 s....144 s ± 10% If ? 6 x In ± 20% If > 6 x In With current I = 3xI1(4); t1= 3 s....144 s ± 20% If > 5 x I1 ± 30% 2xI1? If ? 5 x I1 With current I > I2 t2= 0.05 s….0.8 s t2sel= 0.04 s…..0.2 s The better of the two figures: ± 10% or ± 40 ms With current I = 10xIn; t2= 0.05 s…0.8 s ± 15% If ? 6 x In ± 20% If > 6 x In With current I > I2 t2= 0.05 s….0.8 s The better of the two figures: ± 10% or ± 40 ms

Time Step
3s
(1)

Can be
excluded –

Relation
t=f(I) t=k/I2

Thermal Zone memory selectivity
■ –

0.01 x In

3s



Tolerance

t=k(a) (5) a = 0.2-1-2 ■

Selective short-circuit protection I2= 0.6….10 x In Tolerance (2) ± 7% If ? 6 x In ± 10% If > 6 x In I2= 0.6….10 x In ± 7% If ? 6 x In ± 10% If > 6 x In

0.1 x In

0.01 s 0,01 s



t=k



0.1 x In

0.01 s



t=k/I2





Tolerance (2)

Selective short-circuit protection I2= 0.6….10 x In ± 7% If ? 6 x In Tolerance (2) ± 10% If > 6 x In Instantaneous short-circuit protection I3= 1.5….15 x In Tolerance (2) ± 10% Earth fault protection I4(6)= 0.2….1 x In Tolerance
(2)

0.1 x In

0.01 s



t=k





0.1 x In

0.02 x In

Tolerance (2)

± 7% I4= 0.2….1 x In ± 7% Id= 3-5-7-10-20-30 A ± 10% I7= 0.6….10 x In ± 10% I6= 5%….90% ± 10%

0.02 x In

Instantaneous ? 30 ms With current I > I4 t4= 0.1 s…..1 s t4sel= 0.04 s…..0.2 s The better of the two figures: ± 10% or ± 40 ms t4= 0.1 s…..1 s (with I=4xI4) ± 15% td= 0.06-0.1-0.2-0.3- 0.40.5-0.8 s (3) With current I > I7 t7= 0.20 s…..0.8 s The better of the two figures: ± 10% or ± 40 ms t6= 0.5 s…..60 s The better of the two figures: ± 20% or ± 100 ms Instantaneous With current U < U8; t8= 0,1 s….5 s The better of the two figures: ± 20% or ± 40 ms With current U > U9; t9= 0,1 s….5 s The better of the two figures: ± 20% or ± 40 ms With current U0 > U10; t10= 0,5 s….30 s The better of the two figures: ± 10% or ± 100 ms With current P < P11 t11= 0.5 s…..25 s The better of the two figures: ± 10% or ± 100 ms With current f < f12; t9= 0.5 s….3 s The better of the two figures: ± 10% or ± 100 ms With current f > f13; t10= 0.5 s….3 s The better of the two figures: ± 10% or ± 100 ms



■ ■

t=k





0.05 s 0,01 s

t=k





0.05 s

■ ■

t=k/I2





Rc

Residual Current protection (7) Tolerance (2)

4

t=k





D

Directional short-circuit protection Tolerance (2) Phase unbalance protection Tolerance (2)

0.1 x In

0.01 s

■ ■

t=k





U

5%

0.5 s

t=k





OT

Protection against overtemperature cannot be set Undervoltage protection Tolerance (2) Overvoltage protection Tolerance (2) Residual voltage protection Tolerance (2) Reverse power protection Tolerance (2) Underfrequency protection Tolerance (2) Overfrequency protection Tolerance (2) I8= 0.5….0.95 x Un ± 5% I9= 1.05….1.2 x Un ± 5% I10= 0.1….0.4 x Un ± 5%

– 0.01 x In

– 0.1 s

– ■ ■ ■

temp=k t=k

– –

– –

UV

OV

0.01 x In

0.1 s

t=k





RV

0.05 Un

0.5 s

t=k





RP

P11= -0.3….-0.1 x Pn 0.02 Pn ± 10% f12 = 0.90….0.99 x fn 0.01 fn ± 5% f13 = 1.01….1.10 x fn 0.01 fn ± 5%

0.1 s

■ ■ ■

t=k





UF

0.1 s

t=k





OF

0.1 s

t=k





(1) The minimum trip value is 1 s, regardless of the type of curve set (self-protection) (2) These tolerances hold in the following conditions: - self-powered relay at full power and/or auxiliary power supply (without start-up) - two- or three-phase power supply - trip time set

(7) If selected, Rc protection with PR123/P-LSIG and special rating plug, can replace Gext protection. The following tolerance values apply in all cases not covered by the above:

? 100 ms Trip threshold Trip time L Release between 1.05 and 1.25 x I1 ± 20% S ± 10% ± 20% I ± 15% ? 60ms G ± 15% ± 20% Others ± 20%

(3) Non intervention time (4) In accordance with IEC 60255-3 (5) t = (3a - 1) (I/I1)a -1

? t1(3xI1)

(6) The minimum trip threshold for the G ext protection with SRG toroid is 0,1 In

ABB SACE

4/27

Protection releases and trip curves
PR123/P

Power supply

The PR123 release does not normally require any external power supplies, being self-supplied from the current sensors (CS): a three-phase 70 A current is sufficient to activate the protection functions and the ammeter, whereas three-phase 160 A are required to turn the display on. Once the display is turned on, the minimum current for visualisation is I > 5% of the rating plug. The unit ensures fully self-supplied operation. When an auxiliary power supply is present, it is also possible to use the unit with the circuit-breaker either open or closed with very low current flowing through. It is also possible to use an auxiliary power supply provided by the PR030/B portable battery unit (always supplied), which allows the protection functions to be set when the release is not selfsupplied. PR123/P stores and shows all the information needed after a trip (protection tripped, trip current, time, date). No auxiliary supply is required for this functionality.
PR123/P
Auxiliary power supply (galvanically insulated) Maximum ripple Inrush current @ 24V Rated power @ 24V
24 V DC ± 20% 5% ~10 A for 5 ms ~3 W

PR120/D-M
from PR122/PR123

PR120/K
from PR122/PR123

PR120/D-BT
from PR122/PR123

+1 W

+1 W

+1 W

PR120/V can give power supply to the release when at least one line voltage is equal or higher to 85V.

4

4/28

ABB SACE

Functions L-S-I

t=

k I2

1SDC200110F0001

4

Functions L-S-I

t=k

Threshold and trip times tolerances ...................... page 4/27

ABB SACE

4/29

1SDC200111F0001

Protection releases and trip curves
PR123/P

Function L
According to IEC 60225-3

t [s]

10 4

10 3

k = 0,14 a = 0,02

10 2

10

1

4
10 -1 10 -1 1 10 100 x In

Function L
According to IEC 60225-3

t [s]

10 4

10 3

k = 13,5 a=1

10 2

10

1
1SDC200119F0001

10 -1
Threshold and trip times tolerances ...................... page 4/27

10 -1

1

10

100 x In

4/30

ABB SACE

1SDC200118F0001

Function L
According to IEC 60225-3

t [s]

10 4

10 3

k = 80 a=2

10 2

10

1

1SDC200120F0001

4

10 -1

10 -1

1

10

100 x In

Function G

t=

k I2

t=k
1SDC200112F0001

Threshold and trip times tolerances ...................... page 4/27

ABB SACE

4/31

Protection releases and trip curves
PR123/P

Function D

D

4
Function U

U

Threshold and trip times tolerances ...................... page 4/27

4/32

ABB SACE

1SDC200122F0001

1SDC200121F0001

Function UV
UV

1SDC200123F0001

4

Function OV

OV

Threshold and trip times tolerances ...................... page 4/27

ABB SACE

4/33

1SDC200124F0001

Protection releases and trip curves
PR123/P

Function RV

RV

4
Function RP

RP

Threshold and trip times tolerances ...................... page 4/27

4/34

ABB SACE

1SDC200126F0001

1SDC200125F0001

Accessories for protection releases

Optional modules
PR122 and PR123 can be enriched with additional internal modules, increasing the capacity of the release and making these units highly versatile.

Electrical signalling contacts: PR120/K Internal Module
This unit, internally connected to PR122/P and PR123/P, allows the remote signalling of alarms and trips of the circuit breaker. Four independent power relays provided on the PR120/K release enable electrical signalling of the following: ? timing for protections L, S, G (and UV, OV, RV, RP, D, U, OF, UF where applicable); ? protections L, S, I, G, OT, (and UV, OV, RV, RP, D, U, OF, UF where applicable) tripped and other events; ? in addition, by using an external device (PR010/T, BT030, PR120/D-BT), the contacts can be freely configured in association with any possible event or alarm. PR120/K can also be used as actuator for the Load control function. In addition the unit can be provided with a digital input signal, enabling the following functions: ? activation of alternative set of parameter (PR123/P only); ? external trip command ? trip reset of the release ? reset of PR120/K power relays When the digital input is required the power relays have a common connection (see circuit diagrams Chapter 8). This latest kind of connection must be specified in the order when required together with the circuit breaker. When PR120/K is ordered as loose accessory both of the configurations are possible. The auxiliary 24VDC power supply is needed for the unit (shown by a green Power LED). Four yellow LEDs show the status of each output relay. The use of Voltage Transformers is mandatory for rated voltages higher than 690V.
Specifications of the signalling relays
Type Maximum switching power (resistive load) Maximum switching voltage Maximum switching current Breaking capacity (resistive load) @ 30V DC @ 250V AC Contact/coil insulation Monostable STDP 100 W/1250 VA 130 V DC/250 V AC 5A 3.3 A 5A 2000 V eff (1 min@ 50 Hz)

1SDC200300F0001

4

PR120/V Measurement Module
This optional internal module can be added to PR122, and it is supplied as standard in PR123. It measures and processes the phase and neutral voltages, are transferring these values to the protection release by means of its internal bus in order to achieve a series of protection and measurement features. It can be connected at any time to PR122/P, which recognizes it automatically without the need of any configuration. PR122 does not normally require any external connection or Voltage Transformer, since it is connected internally to the lower terminals of Emax. When necessary, the connection of voltage pick-ups can be moved to any other points (i.e. upper terminals), by using the alternative connection located in the terminal box. When ordered as a loose accessory, PR122 is provided with all the possible connections, internal or through the terminal box. The module is provided with a Power LED and a sealable switch-disconnector for the dielectric test.
4/35

ABB SACE

1SDC200114F0001

Accessories for protection releases

PR120/D-M Communication Module
PR120/D-M communication module is the solution for connecting Emax to a Modbus network, allowing the remote supervision and control of the circuit-breaker. It is suitable for PR122/P and PR123/P releases. As for PR120/V this module can be added at any time to the protection release and its presence is automatically recognized. When ordered separately from the circuit-breakers it is supplied complete of all the accessories needed for its installation, such as precabled auxiliary switches and cables for signalling the curcuit-breaker status (springs, position inserted). Refer to circuit diagram page 8/8 for details about connections. The list of available functions can be found on page 4/42. It is provided with three LEDS on the front side: ? Power LED ? Rx/Tx LEDs

1SDC200301F0001

PR120/D-BT Wireless Communication Module
PR120/D-BT is the innovative wireless communication module, based on Bluetooth standard. It allows the communication among the PR122/P and PR123/P Protection releases and a PDA or a Notebook with a Bluetooth port. This device is dedicated to the use with SD-Pocket application (see in the following the features of this application). The module can be powered by means of te 24V DC auxiliary supply or by means of PR130/B battery unit. It is provided with four LEDS on the front side: ? Power LED ? Rx/Tx LEDs ? Bluetooth LED, showing the activity of Bluetooth communication PR120/D-BT can be connected at any time to the protection release.

4

1SDC200302F0001

BT030 Communication unit
BT030 is a device to be connected on Test connector of PR121/P, PR122/P and PR123/P. It allows Bluetooth communication among the Protection release and a PDA or a Notebook with a Bluetooth port. BT030 can also be used with Tmax circuit breakers equipped with PR222DS/PD. This device is dedicated to the use with SD-Pocket application. BT030 can provide the power supply needed to energize itself and the protection release by means of a Li-ion rechargeable battery.

PR030/B power supply unit
This accessory, always supplied with the PR122 and PR123 range of releases, makes it possible to read and configure the parameters of the unit whatever the status of the circuitbreaker (open-closed, in test isolated or racked-in position, with/without auxiliary power supply). PR030/B is also needed for reading trip data if the trip occurred more than 48 hours earlier and the release was no longer powered. An internal electronic circuit supplies the unit for approximately 3 consecutive hours for the sole purpose of reading and configuring data. In relation to the amount of use, battery life decreases if the SACE PR030/B accessory is also used to perform the Trip test & Auto test.

Interface from front of HMI030 panel
This accessory, suitable for all protection releases, is designed for the installation on the front side of the switchboard. It consists of a graphic display where all the measurements and alarms/events of the release are shown. The user can browse the measurements by using the navigation pushbuttons, similarly to PR122/P and PR123/P. Thanks to the high precision level, the same of the protection releases, the device can replace the traditional instrumentation, without the need for current/voltage transformers. The unit requires only a 24 V DC power supply. In fact HMI030 is connected directly to the protection release via a serial line.
4/36 ABB SACE

SACE PR010/T configuration test unit
The SACE PR010/T unit is an instrument capable of performing the functions of testing, programming and reading parameters for the protection units equipping SACE Emax low-voltage air circuit-breakers. In particular, the test function involves the following units: ? PR121 (all versions) ? PR122 (all versions) ? PR123 (all versions) whereas the parameter programming and reading functions regard the range of PR122 and PR123 releases. All of the functions mentioned can be carried out ?on board? by connecting the SACE PR010/T unit to the front multi-pin connector on the various protection units. Special interfacing cables supplied with the unit must be used for this connection. The human-machine interface takes the form of a touchpad and multi-line alphanumeric display. The unit also has two LEDs to indicate, respectively: ? POWER-ON and STAND BY ? battery charge state. Two different types of test are available: automatic (for PR121, PR122 and PR123) and manual. By connection to a PC (using the floppy-disc supplied by ABB SACE), it is also possible to upgrade the software of the SACE PR010/T unit and adapt the test unit to the development of new products. It is also possible to store the most important test results in the unit itself, and to send a report to the personal computer with the following information: ? type of protection tested ? threshold selected ? curve selected ? phase tested ? test current ? estimated trip time ? measured trip time ? test results. At least 5 complete tests can be stored in the memory. The report downloaded onto a PC allows creation of an archive of tests carried out on the installation. In automatic mode, the SACE PR010/T unit is capable of testing the following with the PR122 range: ? protection functions L, S, I, ? G protection function with internal transformer, ? G protection function with toroid on the transformer star centre, ? monitoring of correct microprocessor operation. The unit can also test the following protections of PR122 equipped with PR120/V: ? overvoltage protection function OV, ? undervoltage protection function UV, ? residual voltage protection function RV, ? phase unbalance protection function U. The SACE PR010/T unit is portable and runs on rechargeable batteries and/or with an external power supply (always supplied) with a rated voltage of 100-240V AC/12V DC. The standard version of the SACE PR010/T unit includes: ? SACE PR010/T test unit complete with rechargeable batteries ? SACE TT1 test unit ? 100 - 240V AC/12V DC external power supply with cord ? cables to connect the unit and connector ? cable to connect the unit and computer (RS232 serial) ? user manual and floppy-disc containing application software ? plastic bag.

1SDC200129F0001

4

ABB SACE

4/37

Accessories for protection releases

SACE PR021/K signalling unit
The SACE PR021/K signalling unit can convert the digital signals supplied by the PR121, PR122 and PR123 protection unit into electrical signals, via normally open electrical contacts (potential free). The unit is connected to the protection release by means of a dedicated serial line through which all of the information about the activation status of the protection functions flows. The corresponding power contacts are closed based on this information. The following signals/contacts are available: ? overload pre-alarm L (the alarm signal remains active throughout the overload, until the release is tripped) ? timing and tripping of any protections (the trip signals of the protections remain active during the timing phase, and after the release has tripped) ? protection I tripped ? timing and overtemperature threshold exceeded (T>85 °C) ? two load control contacts (connection and disconnection of a load, or disconnection of two loads) ? release tripped ? dialogue fault on a serial line (connecting the protection and signalling units) ? phase unbalance.

4

Setting a dip-switch allows up to seven signal contacts to be freely configured in PR122-PR123, including: directional protection D tripped, under- and overvoltage UV and OV tripped, reverse power RP tripped, and others. Two contacts available on the SACE PR021/K unit (load control) can pilot a circuit-breaker shunt opening or closing release. These contacts allow various applications, including load control, alarms, signals and electrical locks. Pressing the Reset pushbutton resets the status of all signals. The unit also contains ten LEDs to visually signal the following information: ? ?Power ON?: auxiliary power supply present ? ?TX (Int Bus)?: flashing synchronized with dialogue with the Internal Bus ? eight LEDs associated with the signalling contacts. The table below lists the characteristics of the signalling contacts available in the SACE PR021/K unit.

Auxiliary power supply Maximum ripple Rated power @ 24 V

24 V DC ± 20% 5% 4.4 W

Specifications of the signalling relays
Type Maximum switching power (resistive load) Maximum switching voltage Maximum switching current Breaking capacity (resistive load) @ 30V DC @ 250V AC Contact/coil insulation Monostable STDP 100 W/1250 VA 130 V DC/250 V AC 5A 3.3 A 5A 2000 V eff (1 min@ 50 Hz)

4/38

ABB SACE

Communication devices and systems

Industrial networking and ABB SACE Emax
In addition to providing flexible and safe protection of power installations, ABB SACE Emax electronic releases have an extended range of communication features, which opens the way for connection of circuit-breakers to the world of industrial communication. PR122 and PR123 electronic releases can be fitted with communication modules, which make it possible to exchange data and information with other industrial electronic devices by means of a network. The basic communication protocol implemented is Modbus RTU, a well-known standard of widespread use in industrial automation and power distribution equipment. A Modbus RTU communication interface can be connected immediately and exchange data with the wide range of industrial devices featuring the same protocol. ABB products featuring the Modbus RTU protocol include: · low voltage circuit breakers such as Emax, · Medium Voltage protection devices · sensors, · automation I/O systems, · power meters and other measurement devices, · intelligent devices such as PLCs, · operator interfaces · supervision and control systems. And if other communication protocols are required, the ABB Fieldbus Plug system is also available: intelligent field bus protocols such as Profibus-DP and DeviceNet thus become immediately available.
The power of industrial networking

1SDC200303F0001

4

The communication network can be used to read all information available in the protection release, from any location connected to the bus and in real time: · circuit-breaker status: closed, open, opened by protection release trip · all values measured by the protection release: RMS currents, voltages, power, power factor and so on · alarms and prealarms from protection release, e.g., overload protection alarm (timing to trip or prealarm warning) · fault currents in case of circuit-breaker opening on a protection trip · number of operations performed by the circuit-breaker, with indication of the number of trips per protection type (short-circuit, overload, etc.) · complete settings of the protection release · estimate of the residual life of circuit-breaker contacts, calculated on the basis of interrupted currents Remote control of circuit-breakers is possible: commands to open, close and reset alarms can be issued to the circuit-breaker and protection release. Close commands are executed only after a security check (e.g., that there are no diagnostic alarms active on the release). It is also possible to change the settings of the protection release remotely by means of the communication bus. All remote commands can be disabled by a ?local? configuration feature, for safety of operators and installation.

ABB SACE

4/39

Communication devices and systems

Circuit-breakers with communication can easily be integrated with automation and supervision systems. Typical applications include: ? supervision of the installation with continuous data logging (values of currents, voltage, power) and event logging (alarms, faults, trip logs). Supervision can be limited to low voltage devices or include medium voltage and possibly other kinds of industrial apparatus ? predictive maintenance, based on number of operations of each circuit-breaker, interrupted currents and estimate of residual equipment life ? load shedding and demand side management under control of PLC, DCS or computers.
Communication products for ABB SACE Emax

ABB SACE has developed a complete series of accessories for the Emax family of electronic releases: ? PR120/D-M communication module ? EP010 ? FBP. Furthermore, a new generation of software dedicated to installation, configuration, supervision and control of protection releases and circuit-breakers is now available: ? SDView 2000 ? SD-Pocket ? TestBus2.
System architecture for plant supervision and control

4

M.V. protection

Emax with PR122/123

Moulded case breakers with communication

4/40

ABB SACE

1SDC200310F0001

Meter with communication (e.g., remote power measurement)

PR120/D-M
PR120/D-M is the new communication module for PR122/P and PR123/P protection releases. It is designed to allow easy integration of the Emax circuit-breakers in a Modbus network. The Modbus RTU protocol is of widespread use in the power as well as the automation industry. It is based on a master/slave architecture, with a bandwidth of up to 19200 Kbytes/sec. A standard Modbus network is easily wired up and configured by means of an RS485 physical layer. ABB SACE releases work as slaves in the field bus network. All information required for simple integration of PR120/D-M in an industrial communication system are available on the ABB Web page.
1SDC200304F0001

BT030
BT030 is a device to be connected to the Test connector of PR121/P, PR122/P and PR123/P. It allows Bluetooth communication between the Protection release and a PDA or a Notebook with a Bluetooth port. BT030 can also be used with Tmax circuit-breakers equipped with PR222DS/PD. This device is dedicated to use with the Sd-Pocket application. It can provide the auxiliary supply needed to energize the protection release by means of rechargeable batteries.

4
EP 010 - FBP
EP 010 ? FBP is the Fieldbus Plug interface between the Emax protection releases and the ABB Fieldbus Plug system, allowing connection of Emax Circuit-breakers to a Profibus, DeviceNet, or AS-I field bus network. EP 010 ? FBP can be connected to the new Emax PR122 and PR123 protection releases (the PR120/D dialogue module is required). The ABB Fieldbus Plug concept is the latest development in industrial communication systems. All devices feature a standard connection socket, to which a set of interchangeable ?smart? connectors can be plugged. Each connector is fitted with advanced electronics implementing the communication interface towards the selected field bus. Selecting a communication system is made as easy as selecting and connecting a plug. Communication systems currently available are Profibus-DP, DeviceNet and AS-i. More are being developed.

ABB SACE

1SDC200305F0001

4/41

Communication devices and systems

Measurement, signalling and available data functions
Details about functions available on PR122/P, PR123/P releases with PR120/D-M and EP010 ? FBP are listed in the table below:
PR122/P + PR120/D-M
Communication functions
Protocol Physical layer Maximum baudrate Modbus RTU RS-485 19200 bps Modbus RTU RS-485 19200 bps FBP Profibus-DP or DeviceNet cable 115 kbps

PR123/P + PR120/D-M

PR122/P-PR123/P + PR120/D-M and EP 010

Measuring functions
Phase currents Neutral current Ground current Voltage (phase-phase, phase-neutral, residual) Power (active, reactive, apparent) Power factor Frequency and peak factor Energy (active, reactive, apparent) Harmonic analisys up to the 40th harmonic ■ ■ ■ opt. (1) opt. (1) opt. (1) opt. (1) opt. (1) ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ demand demand demand demand demand demand

on on on on on on

(2) (2) (2) (2) (2) (2)

Signalling functions
LED: auxiliary power supply, warning, alarm Temperature Indication for L, S, I, G and other protection ■ ■ opt. (1) ■ ■ ■ ■ ■ ■

4

Available data
Circuit-breaker status (open, closed) Circuit-breaker position (racked-in, racked-out) Mode (local, remote) Protection parameters set Load control parameters ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

Alarms
Protection L Protection S Protection I Protection G Fault release mechanism failure Undervoltage, overvoltage and residual voltage (timing and trip) protection Reverse power protection (timing and trip) Directional protection (timing and trip) Underfrequency/overfrequency protection (timing and trip) Phases rotation ■ ■ ■ ■ ■ opt. (1) opt. (1) ■ opt. (1) ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ on demand (2) on demand (2) PR123 only on demand (2) on demand (2)

Maintenance
Total number of operations Total number of trips Number of trip tests Number of manual operations Number of separate trips for each protection function Contact wear (%) Record data of last trip ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

Operating mechanisms
Circuit-breaker openi/close Reset alarms Setting of curves and protection thresholds Synchronize system time ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

Events
Status changes in circuit-breaker, protections and all alarms ■ ■ ■

(1) with PR120/V (2) please ask ABB for further details

4/42

ABB SACE

SD-View 2000
SD-View 2000 is a ?ready-to-use? system, consisting of software for personal computers, in standard configuration, which allows complete control of the low voltage electrical installation. Putting the SD-View 2000 system into operation is quick and easy. In fact, the software itself guides the user in recognising and configuring the protection units. The user only needs knowledge of the installation (such as how many circuit-breakers are installed and how they are connected to each other). No engineering work on the supervision system is required, since all the pages displayed are already configured in the system, ready to be used. Usage of the software is intuitive and easy to learn for the operator: SD-View 2000 has graphic pages based on Internet Explorer, which make the system as simple to manage as surfing on the Internet.
System architecture

System architecture is based on the latest developments in personal computer and industrial communication network technology. The ABB SACE devices are connected to the serial bus RS485 Modbus. A maximum of 31 devices can be connected to a bus. A maximum of 4 serial bus can lines be connected to a personal computer which works as data server, reading and storing the data received from the devices. The server is also used as the operator station, from where the data can be displayed and printed, commands can be sent to the devices, and all the operations needed to manage the installation can be carried out. The server can be connected to a local network together with other personal computers which work as additional operator stations (clients). In this way, installation supervision and control can be carried out with total reliability from any station connected to the network on which SD-View 2000 is installed.

4

Modbus RTU on RS-485

Converter RS232-RS485

ABB SACE

4/43

1SDC200306F0001

Tmax T1-T3 + AC31

Tmax T4-T5 + PR222DS/PD

Isomax S4-S7 + PR212/PD

Emax E1-E6 + PR122 or PR123 + PR120/D-M

Communication devices and systems

Complete control of the installation

SD-View 2000 is the ideal tool available to managers, in order to have the situation of the installations under control at all times and to be able to control all the functions easily and in real time.

4

The SD-View 2000 operator station (personal computer) allows information from the installation to be received and to control the circuit-breakers and relative releases. In particular, it is possible to: ? Send opening and closing commands to the circuit-breakers ? Read the electrical installation values (current, voltage, power factor, etc.) ? Read and modify the trip characteristics of the protection units ? Determine the status of the apparatus (open, closed, number of operations, trip for fault, etc.) ? Determine abnormal operating situations (e.g. Overload) and, in the case of the releases tripping, the type of fault (short-circuit, earth fault, value of the uninterrupted currents, etc.) ? Log the history of the installation (energy consumption, most highly loaded phase, any warnings of anomalies or faults, etc.) ? Show the temporal evolution of the installation by means of graphs. Access to the various system functions can be enabled by means of secret codes or passwords with different levels of authorisation. Usage of the system is really simple thanks to the user interface based on Internet explorer. The graphic pages relative to each circuit-breaker are particularly intuitive and easy to use.
Devices which can be connected

The circuit-breakers with electronic releases which can be interfaced with SD-View 2000 are: ? Emax LV air circuit-breakers from E1 to E6 fitted with PR122/P or PR123/P releases with Modbus RTU PR120/D-M communication unit ? Emax LV air circuit-breakers from E1 to E6 fitted with PR112/PD or PR113/PD Modbus releases ? Tmax LV moulded-case circuit-breakers T4 and T5 fitted with PR222/PD release ? Isomax LV circuit-breakers from S4 to S7 fitted with PR212/P release with Modbus RTU PR212/D-M communication unit. In addition, SD-View 2000 can acquire current, voltage and power measurements in real time from the MTME-485 multimeters with Modbus communication Furthermore, it is possible to interface any air or moulded-case circuit-breaker or switch-disconnector, not fitted with electronics, with SD-View 2000 by using a PLC AC31 unit as the communication module. For the circuit-breakers or switch-disconnectors connected in this way, SD-View 2000 shows the conditions of the apparatus (open, closed, tripped, racked-in or racked-out) in real time and allows it to be operated remotely.
4/44 ABB SACE

1SDC200309F0001

1SDC200308F0001

1SDC200307F0001

All the characteristics of the devices listed are preconfigured in the SD-View 2000 system. The user does not therefore have to carry out any detailed configuration (i.e. insert tables with data to be displayed for each release, or draft ad hoc graphic pages): simply enter the list of devices connected into the system.
Technical characteristics
Up to 4 serial ports Up to 31 ABB SACE devices for each serial port 9600 or 19200 baud Modbus? RTU Protocol

Personal computer requirements

Pentium 1 GHz, 256 MB RAM (512 MB recommended), 20 GB hard disk, Windows 2000, Internet Explorer 6, Ethernet card, Printer (optional)

SD-Pocket
SD-Pocket is an application designed to connect the new protection releases to a PDA or to a personal computer. This means it is now possible to use wireless communication to: ? configure the protection threshold function ? monitor measurement functions, including reading of data recorded in data logger (PR122/ PR123) ? verify the status of the circuit-breaker (i.e. number of operations, trip data, according to the release connected). SD-Pocket application scenarios include: ? during start-up of switchgear, with rapid and error-free transfer of the protection parameters to the releases (also using the dedicated exchange file directly from Docwin); ? during normal installation service, gathering information on the circuit-breaker and load conditions (last trip information, runtime currents, and other information). To use all these functions, it is sufficient to have a PDA with MS Windows Mobile 2003 and BT interface or a personal computer with MS Windows2000 OS and new PR120/D-BT or PR030 Bluetooth interface devices. SD-Pocket is freeware and it can be downloaded from the BOL website (http://bol.it.abb.com). Its use does not require the presence of dialogue units for the releases.

4

ABB SACE

4/45

Communication devices and systems

TestBus2
TestBus2 is the ABB SACE commissioning and diagnostic software for all Modbus RTU devices. It can be used during system startup, or to troubleshoot an installed network. TestBus2 automatically scans the RS-485 bus, detects all connected devices and checks their communication settings. All possible combination of device address, parity and baud rate are checked. A click on ?scan? is enough to spot devices which are not responding, wrong addresses, misconfigured parity bits, and so on. This function is not limited to ABB SACE devices: all standard Modbus RTU devices are detected and their configuration is displayed. After the scan, the software displays warning messages about potential problems and configuration errors, allowing complete diagnosis of a field bus network. When ABB SACE circuit breakers are detected, additional functions can be used to check wirings, send open/ close/reset commands, and retrieve diagnostic information. This user-friendly tool makes commissioning of Modbus networks a breeze. TestBus2 is freeware and can be downloaded from the BOL website (http://bol.it.abb.com).

4

4/46

ABB SACE

1SDC200311F0001

4

ABB SACE

4/47

Accessories

Contents
Functions of the accessories ....................................................................................... 5/2

Accessories supplied as standard .............................................................................. 5/3

Accessories supplied on request ..................................................................................... 5/4

Shunt opening and closing releases ............................................................................... 5/6

Undervoltage release ......................................................................................................... 5/8

Geared motor for the automatic charging of closing springs .................................. 5/10

Signalling of overcurrent releases tripped ...................................................................... 5/11

Auxiliary contacts ............................................................................................................... 5/12

Transformers and operation counters ............................................................................. 5/15

5

Mechanical safety locks .................................................................................................... 5/16

Transparent protective covers .......................................................................................... 5/18

Interlock between circuit-breakers ................................................................................... 5/19

Automatic transfer switch - ATS010 ................................................................................. 5/22

Spare parts and Retrofitting .............................................................................................. 5/25

ABB SACE

5/1

Functions of the accessories

The table below lists a few functions that can be obtained by selecting the appropriate accessories from among those provided. Several of the functions listed may be needed at the same time, depending on how the circuit-breaker is used. See the relative section for a detailed description of the individual accessories.

Components Function

Remote control

? Opening release ? Closing release ? Geared motor for automatic charging of the closing springs

Remote signalling or actuation of automatic functions depending on the state (open-closed-tripped) or position (racked-in, test isolated, racked-out) of the circuit-breaker.

? Circuit-breaker open-closed auxiliary contacts ? Circuit-breaker racked-in, test isolated, racked-out auxiliary contacts (withdrawable circuit-breaker only) ? Contact for electrical signalling of overcurrent releases tripped ? Contact for signalling undervoltage release de-energized ? Contact for signalling springs charged

Remote opening for various needs, including: – manual emergency control – opening dependent on tripping of other interruption devices or system automation needs (1).

? Opening or undervoltage release

5

Automatic opening of the circuit-breaker for undervoltage (for example, when operating asynchronous motors)

? Instantaneous or time delay undervoltage release (2) ? Contact for signalling undervoltage release energized

Increased degree of protection

? IP54 door protection

Mechanical safety locks for maintenance or functional requirements for interlocking two or more circuit-breakers

? Key lock in open position ? Padlock device in open position ? Key lock and padlocks in racked-in, test isolated, racked-out position

Automatic switching of power supplies

? Mechanical interlock between two or three circuit-breakers ? Automatic transfer switch - ATS010

(1) Examples: – circuit-breakers on Low Voltage side of parallel transformers that must open automatically when the Medium Voltage side device opens. – automatic opening for control by external relay (undervoltage, residual current, etc.).

(2) The time-delay device is recommended when unwanted operation due to temporary voltage drops, is to be avoided (for functional or safety reasons).

5/2

ABB SACE

Accessories supplied as standard

The following standard accessories are supplied depending on the circuit-breaker version:

Fixed circuit-breaker:
? flange for switchgear compartment door (IP30) ? support for service releases ? four auxiliary contacts for electrical signalling of circuit-breaker open/closed (for automatic circuit-breakers only) ? terminal box for connecting outgoing auxiliaries ? mechanical signalling of overcurrent release tripped (*) ? horizontal rear terminals ? lifting plate

Note:
(*) Not supplied with the switch disconnector.

Withdrawable circuit-breaker:
? flange for switchgear compartment door ? support for service releases ? four auxiliary contacts for electrical signalling of circuit-breaker open/closed (for automatic circuit-breakers only) ? sliding contacts for connecting outgoing auxiliaries ? mechanical signalling of overcurrent release tripped (*) ? horizontal rear terminals ? anti-insertion lock for circuit-breakers with different rated currents ? racking-out crank handle ? lifting plate

5

Note:
(*) Not supplied with the switch disconnector.

ABB SACE

5/3

Accessories supplied on request

The ranges

Automatic circuit-breakers Circuit-breakers with full-size neutral Circuit-breakers for applications up to 1150V AC

Circuit-breaker version 1a) Shunt opening/closing release (YO/YC) and second opening release (YO2) 1b) SOR test unit 2a) Undervoltage release (YU) 2b) Time-delay device for undervoltage release (D) 3) Geared motor for the automatic charging of the closing springs (M)

Fixed

Withdrawable

4a) Electrical signalling of electronic releases tripped 4b) Electrical signalling of electronic releases tripped with remote reset command 5a) Electrical signalling of circuit-breaker open/closed (1) 5b) External supplementary electrical signalling of circuit-breaker open/closed 5c) Electrical signalling of circuit-breaker racked-in/test isolated/racked-out 5d) Contact signalling closing springs charged 5e) Contact signalling undervoltage release de-energized (C. Aux YU) 6a) Current transformer for neutral conductor outside circuit-breaker 6b) Homopolar toroid for the main power supply earthing conductor (star center of the transformer) 6c) Homopolar toroid for residual current protection 7) Mechanical operation counter

n n n n n n n n n n n n n n n n n

n n n n n n n n n n n n n n n n n n n n n n n n n n

8a) Lock in open position: key

5

8b) Lock in open position: padlocks 8c) Circuit-breaker lock in racked-in/racked-out/test isolated position 8d) Accessories for lock in racked-out/test isolated position 8e) Accessory for shutter padlock device 8f) Mechanical lock for compartment door 9a) Protection for opening and closing pushbuttons 9b) IP54 door protection 10) Interlock between circuit-breakers (2) 11) Automatic transfer switch - ATS010 (3)

n n n n n

CAPTION

n n n

Accessory on request for fixed circuit-breaker or moving part Accessory on request for fixed part Accessory on request for moving part

5/4

ABB SACE

Switch-disconnectors Switch-disconnectors for applications up to 1150V AC Switch-disconnectors for applications up to 1000V DC
Fixed Withdrawable

Isolating truck (CS)

Earthing switch with making capacity (MPT)

Earthing truck (MT)

Withdrawable

Withdrawable

Withdrawable

n n n n n n n n n

n n n n n n n n n n

n (YC)

n n n n n

n

n

n n n

n n n n n

n n n n n n n n n n n

n n n

n n n n n n n n n

n n n

5

(1) For automatic circuit-breakers, four auxiliary contacts to electrically signal circuit-breaker open/closed are included in the supply as standard. (2) Incompatible with the E6/f versions with full-size neutral (3) Incompatible with the range of circuit-breakers for applications up to 1150V AC

ABB SACE

5/5

Shunt opening and closing releases

1a) Shunt opening and closing release (YO/YC) and second opening release (YO2)
(1) The minimum impulse current duration time in instantaneous service must be 100 ms (2) If the opening release is permanently connected to the power supply, wait at least 30 ms before sending the command to the shunt closing release.

1SDC200131F0001

Allows remote control opening or closing of the apparatus, depending on the installation position and connection of the releases on the support. The release can, in fact, be used for either of these two applications. Given the characteristics of the circuit-breaker operating mechanism, opening (with the circuit-breaker closed) is always possible, whereas closing is only possible when the closing springs are charged. The release can operate with direct current or alternating current. This release provides instantaneous operation , but can be powered permanently . Some installations require very high safety in controlling circuit-breaker opening remotely. In particular, the control and opening release circuits must be duplicated. To meet these needs, SACE Emax circuit-breakers can be equipped with a second shunt opening release, fitted with a special support to hold it, that can house the standard shunt closing and opening releases. The seat of the second shunt opening release is that of the undervoltage release, which is therefore incompatible with this type of installation. The special support, including the second shunt opening release, is installed in place of the standard support. The technical specifications of the second shunt opening release remain identical to those of the standard shunt opening release. When used as a permanently powered closing release, it is necessary to momentarily de-energize the shunt closing release in order to close the circuit-breaker again after opening (the circuit-breaker operating mechanism has an anti-pumping device).
(1) (2)

Reference figure in electrical circuit diagrams: YO (4) - YC (2) - YO2 (8)

5

1SDC200132F0001

1SDC200133F0001

Characteristics
Power supply (Un): 24 V DC 120-127 30 V AC/DC 220-240 48 V AC/DC 240-250 60 V AC/DC 380-400 110-120 V AC/DC 440 AC (YO-YO2): 70% ... 110% Un (YC): 85% ... 110% Un DC = 200 W AC = 200 VA DC = 5 W AC = 5 VA (max) 60 ms (max) 80 ms 2500 V 50 Hz (for 1 min) V AC/DC V AC/DC V AC/DC V AC

Operating limits: (IEC EN 60947-2 Standards) Inrush power (Ps): Inrush time ~100 ms Continuous power (Pc): Opening time (YO- YO2): Closing time (YC): Insulation voltage:

5/6

ABB SACE

1SDC200134F0001

1b) SOR Test Unit
The SOR control and monitoring Test Unit helps ensure that the various versions of SACE Emax opening releases are running smoothly, to guarantee a high level of reliability in controlling circuit-breaker opening. Under particularly severe operating conditions or simply for remote control of the circuit-breaker, the opening release is widely used as an accessory for the SACE Emax series of air circuitbreakers. Keeping all the functions of this accessory is a necessary condition to guarantee a high level of safety in the installation: it is therefore necessary to have a device available which cyclically checks correct operation of the release, signalling any malfunctions. The SOR control and monitoring Test Unit ensures the continuity of opening releases with a rated operating voltage between 24 V and 250 V (AC and DC), as well as the functions of the opening coil electronic circuit are verified. Continuity is checked cyclically with an interval of 20s between tests. The unit has optic signals via LEDs on the front, which provide the following information in particular: ? POWER ON: power supply present ? YO TESTING: test in progress ? TEST FAILED: signal following a failed test or lack of auxiliary power supply ? ALARM: signal given following three failed tests. Two relays with one change-over are also available on board the unit, which allow remote signalling of the following two events: ? failure of a test - resetting takes place automatically when the alarm stops ) ? failure of three tests - resetting occurs only by pressing the manual RESET on the front of the unit) There is also a manual RESET button on the front of the unit.

1SDC200135F0001

5

Reference figure in electrical circuit diagrams: AY (61)

Characteristics
Auxiliary power supply Maximum interrupted current Maximum interrupted voltage 24 V ... 250 V AC/DC 6A 250V AC

ABB SACE

5/7

Undervoltage release

2a) Undervoltage release (YU)
The undervoltage release opens the circuit-breaker when there is a significant voltage drop or power failure. It can be used for remote release (using normally-closed pushbuttons), for a lock on closing or for monitoring the voltage in the primary and secondary circuits. The power supply for the release is therefore obtained on the supply side of the circuit-breaker or from an independent source. The circuit-breaker can only be closed when the release is powered (closing is mechanically locked). The release can operate with direct current or alternating current. The circuit-breaker is opened with release power supply voltages of 35-70% Un. The circuit-breaker can be closed with a release power supply voltage of 85-110% Un. It can be fitted with a contact to signal when the undervoltage release is energized (C. aux YU) (see accessory 5e).

1SDC200136F0001

Reference figure in electrical circuit diagrams: YU (6)

Characteristics
Power supply (Un): 24 V DC 120-127 V AC/DC 30 V AC/DC 220-240 V AC/DC 48 V AC/DC 240-250 V AC 60 V AC/DC 380-400 V AC 110-120 V AC/DC 440 V AC CEI EN 60947-2 Standards DC = 200 W AC = 200 VA DC = 5 W AC = 5 VA 30 ms 2500 V 50 Hz (for 1 min)

5

Operating limits: Inrush power (Ps): Continuous power (Pc): Opening time (YU): Insulation voltage:

1SDC200137F0001

5/8

ABB SACE

2b) Time-delay device for undervoltage release (D)
The undervoltage release can be combined with an electronic time-delay device for installation outside the circuit-breaker, allowing delayed release tripping with adjustable preset times. Use of the delayed undervoltage release is recommended to prevent tripping when the power supply network for the release is subject to brief voltage drops or power supply failures. Circuit-breaker closing is inhibited when it is not powered. The time-delay device must be used with an undervoltage release with the same voltage.

1SDC200138F0001

Reference figure in electrical circuit diagrams: YU +D (7)

Characteristics
Power supply (D): 24-30 V DC 48 V AC/DC 60 V AC/DC 110-127 V AC/DC 220-250 V AC/DC 0.5-1-1.5-2-3 s

Adjustable opening time (YU+D):

5

ABB SACE

5/9

Geared motor for the automatic charging of the closing springs

3) Geared motor for the automatic charging of the closing springs (M)
This automatically charges the closing springs of the circuitbreaker operating mechanism. After circuit-breaker closing, the geared motor immediately recharges the closing springs. The closing springs can, however, be charged manually (using the relative operating mechanism lever) in the event of a power supply failure or during maintenance work. It is always supplied with a limit contact and microswitch for signalling that the closing springs are charged (see accessory 5d).
1SDC200139F0001

Reference figure in electrical circuit diagrams: M (1)

Characteristics
Power supply 24-30 V AC/DC 48-60 V AC/DC 100-130 V AC/DC 220-250 V AC/DC Operating limits: Inrush power (Ps): Rated power (Pn): Inrush time Charging time: Insulation voltage: 85%...110% Un (CEI EN 60947-2 Standards) DC = 500 W AC = 500 VA DC = 200 W AC = 200 VA 0.2 s 4-5 s 2500 V 50 Hz (for 1 min)

5

1SDC200140F0001

5/10

ABB SACE

Signal for overcurrent releases tripped

4) Electrical signalling of electronic releases tripped
The following signals are available after the electronic release has tripped:
4a) Electrical signalling of electronic releases tripped

This allows visual signalling on the operating mechanism (mechanical) and remote signalling (electrical using switch) that the circuit-breaker is open following operation of the overcurrent releases. The mechanical signalling pushbutton must be rearmed to reset the circuit-breaker.

Reference figure in electrical circuit diagrams: S51 (13)

1SDC200141F0001

4b) Electrical signalling of electronic releases tripped with remote reset command

Available reset coils
24-30 V AC/DC 220-240 V AC/DC 110-130 V AC/DC

This allows visual signalling on the operating mechanism (mechanical) and remote signalling (electrical using switch) that the circuit-breaker is open following operation of the overcurrent releases. With this accessory, it is possible to reset the mechanical signalling pushbutton via an electrical coil from a remote command, which also allows the circuit-breaker to be reset.

5

Reference figure in electrical circuit diagrams: S51 (14)

ABB SACE

1SDC200144F0001

5/11

Auxiliary Contacts

5) Auxiliary contacts
Auxiliary contacts are available installed on the circuit-breaker, which enable signalling of the circuit-breaker status. The auxiliary contacts are also available in a special version for application with rated voltages Un < 24 V (digital signals).

Characteristics
Un 125 V DC 250 V DC Un 250 V AC In max 0.3 A 0.15 A In max 5A cosj 0,3 T 10 ms

The versions available are as follows:
5a-5b) Electrical signalling of circuit-breaker open/closed

5

It is possible to have electrical signalling of the status (open/ closed) of the circuit-breaker using 4, 10 or 15 auxiliary contacts. The auxiliary contacts have the following configurations: ? 4 open/closed contacts for PR121 (2 normally open + 2 normally closed) ? 4 open/closed contacts for PR122/PR123 (2 normally open + 2 normally closed + 2 dedicated to release) ? 10 open/closed contacts for PR121 (5 normally open + 5 normally closed) ? 10 open/closed contacts for PR122/PR123 (5 normally open + 5 normally closed + 2 dedicated to release) ? 15 supplementary open/closed contacts for installation outside the circuit-breaker. The basic configuration described above can be modified by the user for normally open or normally closed indication by repositioning the faston connector on the microswitch. When 10 open/closed contacts for PR122/PR123 are required, the zone selectivity and PR120/K unit are not available.

1SDC200145F0001

Reference figure in electrical circuit diagrams: Q/1÷10 (21-22)

1SDC200146F0001

5/12

ABB SACE

5c) Electrical signalling of circuit-breaker racked-in/test isolated/racked out

In addition to mechanical signalling of the circuit-breaker position, it is also possible to obtain electrical signalling using 5 or 10 auxiliary contacts which are installed on the fixed part. It is only available for withdrawable circuit-breakers, for installation on the fixed part. The auxiliary contacts take on the following configurations: ? 5 contacts; set comprising 2 contacts for racked-in signal, 2 contacts for racked-out signal, and 1 contact to signal the test isolated position (main pliers isolated, but sliding contacts connected). ? 10 contacts; set comprising 4 contacts for racked-in signal, 4 contacts for racked-out signal, and 2 contacts to signal the test isolated position (main pliers isolated, but sliding contacts connected).

1SDC200147F0001

Reference figure in electrical circuit diagrams:
S75I (31-32) S75T (31-32) S75E (31-32)

5

ABB SACE

1SDC200148F0001

5/13

Auxiliary Contacts

5d) Contact for signalling closing springs charged

This is made up of a microswitch which allows remote signalling of the state of the circuit-breaker operating mechanism closing springs (always supplied with the spring charging geared motor).
1SDC200149F0001

Reference figure in electrical circuit diagrams: S33 M/2 (11)

5

5e) Contact signalling undervoltage release de-energized (C.aux YU)

The undervoltage releases can be fitted with a contact (normally closed or open, as preferred) for signalling undervoltage release energized, to remotely signal the state of the undervoltage release.
1SDC200151F0001

Reference figure in electrical circuit diagrams: (12)

1SDC200152F0001

1SDC200150F0001

5/14

ABB SACE

Transformers and operation counters

6a) Current sensor for neutral conductor outside circuit-breaker
For three-pole circuit-breakers only, this allows protection of the neutral by connecting it to the overcurrent release. Supplied on request.
1SDC200153F0001

Reference figure in electrical circuit diagrams: UI/N (page 8/8)

6b) Homopolar toroid for the main power supply earthing conductor (star centre of the transformer)
SACE PR122 and PR123 electronic releases can be used in combination with an external toroid located on the conductor, which connects the star centre of the MV/LV transformer (homopolar transformer) to earth. In this case, the earth protection is defined as Source Ground Return. Through two different combinations of connection of its terminals (see chapter 8), the In of the same toroid can be set at 100 A, 250 A, 400 A, 800 A.

1SDC200154F0001

6c) Homopolar toroid for residual current protection
SACE PR122/P LSIRc, PR122/P LSIG (with PR120/V) and PR123/P may be also used in combination with this accessory, enabling residual current protection. Rc protection can be activated only if the special rating plug for residual current protection ad the external toroid are present.

Characteristics
Rated current 3 - 30A

5

7) Mechanical operation counter
This is connected to the operating mechanism by means of a simple lever mechanism, and indicates the number of mechanical operations carried out by the circuit-breaker. The count is shown on the front of the circuit-breaker.
1SDC200155F0001

ABB SACE

1SDC200156F0001

5/15

Mechanical safety locks

8) Mechanical safety locks
8a-8b) Lock in open position

Several different mechanisms are available which allow the circuit-breaker to be locked in the open position. These devices can be controlled by: ? Key (8a): a special circular lock with different keys (for a single circuit-breaker) or the same keys (for several circuit-breakers). In the latter case, up to four different key numbers are available. ? Padlocks (8b): up to 3 padlocks (not supplied): ? 4 mm.

1SDC200158F0001

1SDC200157F0001

8c) Circuit-breaker lock in racked-in/test isolated/rackedout position

5

This device can be controlled by a special circular key lock with different keys (for a single circuit-breaker) or the same keys (for several circuit-breakers - up to four different key numbers available) and padlocks (up to 3 padlocks, not supplied - ? 4 mm). It is only available for withdrawable circuit-breakers, to be installed on the moving part.

1SDC200160F0001

1SDC200159F0001

8d) Accessories for lock in test isolated/racked-out position

1SDC200162F0001

In addition to the circuit-breaker lock in the racked-in/test isolated/racked-out position, this only allows the circuit-breaker to be locked in the racked-out or test isolated positions. It is only available for withdrawable circuit-breakers, to be installed on the moving part.

1SDC200161F0001

5/16

ABB SACE

8e) Accessory for shutter padlock device

1SDC200163F0001

This allows the shutters (installed on the fixed part) to be padlocked in their closed position. It is only available for withdrawable circuit-breakers, to be installed on the fixed part.

8f) Mechanical lock for compartment door

1SDC200164F0001

This stops the compartment door from being opened when the circuit-breaker is closed (and circuit-breaker racked in for withdrawable circuit-breakers) and prevents the circuit-breaker from being closed when the compartment door is open.

5

ABB SACE

1SDC200165F0001

5/17

Transparent protective covers

9) Transparent protective covers
9a) Protective cover for opening and closing pushbuttons

1SDC200166F0001

These protections are fitted over the opening and closing pushbuttons, preventing the relative circuit-breaker operations unless a special tool is used.

9b) IP54 door protection

5

This is a transparent plastic protective cover which completely protects the front panel of the circuit-breaker, with a protection rating of IP54. Mounted on hinges, it is fitted with a key lock.

1SDC200168F0001

1SDC200167F0001

1SDC200169F0001

5/18

ABB SACE

Interlock between circuit-breakers

10) Mechanical interlock
This mechanism creates a mechanical interlock between two or three circuit-breakers (even different models and different versions, fixed/withdrawable) using a flexible cable. The circuit diagram for electrical switching using a relay (to be installed by the customer) is supplied with the mechanical interlock. The circuit-breakers can be installed vertically or horizontally. Four types of mechanical interlocks are available:
Type A: between 2 circuit-breakers (power supply + emergency power supply) Type B: between 3 circuit-breakers (2 power supplies + emergency power supply) Type C: between 3 circuit-breakers (2 power supplies + bus-tie) Type D: between 3 circuit-breakers (3 power supplies / one single closed CB) Note:
See the ?Overall dimensions? and ?Electrical circuit diagrams? chapters for information about dimensions (fixed and withdrawable versions) and settings.

1SDC200170F0001

5

Vertical interlock

1SDC200171F0001

Horizontal interlock

ABB SACE

5/19

1SDC200172F0001

Interlock between circuit-breakers

The mechanical interlocks possible are shown below, depending on whether 2 or 3 circuit-breakers (any model and in any version) are used in the switching system.

Type of interlock
Type A
Between two circuit-breakers
One normal power supply and one emergency power supply

Typical circuit

Possible interlocks

G

Circuit-breaker 1 can only be closed if 2 is open, and vice-versa.

1 2
O O I O O I

1

2

O I

= =

Circuit-breaker open Circuit-breaker closed

Type B
Between three circuit-breakers
Two normal power supplies and one emergency power supply.

G

1

2

3

Circuit-breakers 1 and 3 can only be closed if 2 is open. Circuit-breaker 2 can only be closed if 1 and 3 are open.

1 2 3
O I O I O O O O O O I O I I O

O I

= =

Circuit-breaker open Circuit-breaker closed

5

Type C
Between three circuit-breakers
The two half-busbars can be powered by a single transformer (bus-tie closed) or by both at the same time (bus-tie open) One or two circuitbreakers out of three can be closed at the same time.

1 2 3
O I O O O I I O O I O I I O O O O I I O I

1

2

3

O I

= =

Circuit-breaker open Circuit-breaker closed

Type D
Between three circuit-breakers
Three power supplies (generators or transformers) on the same busbar, so parallel operation is not allowed Only one of three circuit-breakers can be closed.

1 2 3
O O O I O O O I O O O I

G

1

2

3

O I

= =

Circuit-breaker open Circuit-breaker closed

5/20

ABB SACE

The emergency power supply is usually provided to take over from the normal power supply in two instances: ? to power health and safety services (e.g. hospital installations); ? to power parts of installations which are essential for requirements other than safety (e.g. continuous cycle industrial plants). The range of accessories for SACE Emax circuit-breakers includes solutions for a wide variety of different plant engineering requirements. See the specific regulations regarding protections against overcurrents, direct and indirect contacts, and provisions to improve the reliability and safety of emergency circuits. Switching from the normal to the emergency power supply can either be carried out manually (locally or by remote control) or automatically. To this end, the circuit-breakers used for switching must be fitted with the accessories required to allow electric remote control and provide the electrical and mechanical interlocks required by the switching logic. These include: ? the shunt opening release ? the shunt closing release ? the motor operator ? the auxiliary contacts. Switching can be automated by means of a special electronically-controlled relay circuit, installed by the customer (diagrams provided by ABB SACE). Mechanical interlocks between two or three circuit-breakers are made by using cables which can be used both for circuit-breakers side by side or superimposed.

5

ABB SACE

5/21

Automatic transfer switch - ATS010

11) Automatic transfer switch - ATS010
The ATS010 switching unit (Automatic transfer switch) is the new network-generator switching device offered by ABB SACE. It is based on electronic technology conforming with the major electromagnetic compatibility and environmental Standards (EN 50178, EN 50081-2, EN 500822, IEC 68-2-1, IEC 68-2-2, IEC 68-2-3). The device is able to manage the entire switching procedure between the normal and emergency line circuit-breakers automatically, allowing great flexibility of adjustment. In case of an anomaly in the normal line voltage, in accordance with the delays set, the normal line circuit-breaker is opened, the generator started and the emergency line circuit-breaker closed. Similarly, when the normal line returns, the reverse switching procedure is automatically controlled. It is especially suitable for use in all emergency power supply systems requiring a solution that is ready to install, easy to use and reliable. Some of the main applications include: power supply for UPS (Uninterrupted Power Supply) units, operating rooms and primary hospital services, emergency power supply for civilian buildings, airports, hotels, data banks and telecommunications systems and power supply of industrial lines for continuous processes. The switching system consists of the ATS010 unit connected to two motor-driven and mechanically interlocked circuit-breakers. All the circuit-breakers in the SACE Emax series can be used. The network sensor built into the SACE ATS010 device makes it possible to detect errors in the network voltage. The three inputs can be directly connected to the three phases of the normal power supply line for networks with rated voltage up to 500V AC. Networks with a higher voltage require insertion of voltage transformers (TV), setting a rated voltage for the device that matches their secondary voltage (typically 100V). Two changeover contacts for each circuit-breaker allow direct connection to the shunt opening and closing releases. The circuit-breaker connection is completed by wiring the status contacts: Open/Closed, Release tripped, Racked-in (for withdrawable/plug-in circuit-breakers). That is why the following are included on every circuit-breaker connected to the ATS010 unit, in addition to the mechanical interlock accessories: ? spring charging motor, ? opening and closing coil, ? open/closed contact, ? racked-in contact (for withdrawable versions), ? signal and mechanical lock for protection release tripped. The ATS010 device is designed to ensure extremely high reliability for the system it controls. It contains various safety systems intrinsically related to software and hardware operation. For software safety, a special logic prevents unwarranted operations, while a constantly operational watchdog system signals any microprocessor malfunctions via a LED on the front of the device. Hardware safety allows integration of an electrical interlock via a power relay, so that there is no need to use an external electrical interlock system. The manual selector on the front of the device can also control the entire switching procedure, even in the event of a microprocessor fault, by working electromechanically on the control releases.

5

1SDC200177F0001

5/22

ABB SACE

General specifications
Rated supply voltage (galvanically insulated from earth) Maximum power consumption Rated power (network present and circuit-breakers not controlled) Operating temperature Maximum humidity Storage temperature Degree of protection Dimensions [mm] Weight [kg] 24V DC ± 20% 48V DC ± 10% (maximum ripple ± 5%) 5W at 24V DC 10W at 48V DC 1.8W a 24V DC 4.5W at 48V DC -25 °C…+70 °C 90% without condensation -25 °C…+80 °C IP54 (front panel) 144 x 144 x 85 0.8

Setting range for thresholds and times
Minimum voltage Maximum voltage Un Min Un Max -5%…-30% Un +5%…+30% Un 10%…+10% fn 0…32s 0…32s 0…254s 0…254s 0…32s

Fixed frequency thresholds t1: opening delay of the normal line circuit-breaker due to network anomaly (CB-N) t2: generator start-up delay due to network anomaly t3: stopping delay of the generator t4: switching delay due to network re-entry t5: closing delay of the emergency line circuit-breaker after detecting the generator voltage (CB-E)

Rated voltages settings available

100, 115, 120, 208, 220, 230, 240, 277, 347, 380, 400, 415, 440, 480, 500 V

5

Operating sequence

VN CB-N GE VE CoCo
Caption
VN CB-N GE VE CoCo CB-E LOAD
Network voltage Normal line circuit-breaker closed Generator Emergency line voltage Enabling switching to emergency line Emergency line circuit-breaker closed Disconnection of lower priority loads

t1 t3

t2

CB-E LOAD

t5

t4

ABB SACE

5/23

Automatic transfer switch - ATS010

Front panel

2 1 3 5

7 4 6
1SDC200178F0001

Caption
1 2 3 4 5 6 7
Status of the ATS010 unit and logic Operating mode selector Normal line check Normal line circuit-breaker status Voltage present on the emergency line Emergency line circuit-breaker status Generator status

5

Side panel settings

1

2

3

Caption
1 2
1SDC200179F0001
Selectors to adjust the undervoltage and overvoltage thresholds Dip-switches for adjustment: ? rated voltage ? normal single-phase or three-phase line ? network frequency ? switching strategy

3

Switching delay time settings for t1... t5

5/24

ABB SACE

Spare parts and retrofitting

Spare parts
The following spare parts are available: ? front metal shields and escutcheon plate ? opening solenoid for PR121, PR122 and PR123 overcurrent release ? arcing chamber ? closing springs ? jaw-type isolating contact for the fixed part of the withdrawable circuit-breaker ? earthing sliding contact (for withdrawable version) ? shutters for fixed part ? complete pole ? operating mechanism ? connection cables for releases and current sensors ? transparent protective cover for releases ? SACE PR030/B power supply unit ? toolbox ? battery for SACE PR030/B power supply unit ? front escutcheon plate for Ronis key lock For further details, please request a copy of the ABB SACE spare parts catalogue.

Retrofitting Kits
Special kits have been prepared to replace old SACE Otomax and SACE Novomax G30 circuitbreakers. The kits include SACE Emax circuit-breakers that take advantage of all the components of the existing switchgear. Installing a new circuit-breaker in old switchgear, offers definite technical and economic benefits, and is extremely rapid as there is no need to redo the main switchgear connections.

5

ABB SACE

5/25

Applications of the circuit-breaker

Contents
Primary and secondary distribution Selective protection .............................................................................................................. 6/2 Back-up protection ................................................................................................................ 6/13

Directional protection ........................................................................................................ 6/14

Earth fault protection ......................................................................................................... 6/20

Switching and protection of transformers ...................................................................... 6/26

Line protection .................................................................................................................... 6/30

Switching and protection of generators .......................................................................... 6/32

Switching and protection of asynchronous motors ....................................................... 6/35

Switching and protection of capacitors ........................................................................... 6/41

6

ABB SACE

6/1

Primary and secondary distribution
Selective protection
Selectivity is normally actuated for tripping overcurrent protection devices in civil and industrial installations to isolate the part affected by a fault from the system, causing only the circuit-breaker immediately on the supply side of the fault to trip. The example in the figure highlights the need to coordinate tripping between the two circuit-breakers A and B so that only circuit-breaker B is tripped in the event of a fault in C, ensuring continuity of service for the rest of the system supplied by circuit-breaker A. Whereas natural selectivity within the overload current range is normally found due to the difference between the rated currents of the load protection circuit-breaker and the main circuit-breaker on the supply side, selectivity can be obtained in the shortcircuit current range by differentiating the current values and, if necessary, the trip times. Selectivity can be total or partial: ? total selectivity: only circuit-breaker B opens for all current values lesser than or equal to the maximum short-circuit current in C; ? partial selectivity: only circuit-breaker B opens for fault currents below a certain value; A and B are both tripped for greater or equal values. In principle, the following types of selectivity are possible: Current selectivity, obtained by setting the instantaneous trip currents of the circuitbreaker chain to different values (higher settings for the circuit-breakers on the supply side). This often results in partial selectivity.

Circuit diagram with selective coordination of protections

6
Example of current-type selectivity
1SDC200182F0001

Time selectivity,

obtained by intentionally incorporating increasing time-delays in the trip times of the circuit-breakers furthest to the supply side in the chain.

Example of time-type selectivity

6/2

ABB SACE

1SDC200183F0001

1SDC200181F0001

To guarantee selectivity for Emax circuit-breakers, equipped with electronic PR121, PR122 and PR123 type releases, the following conditions must be verified: ? that there is no intersection between the time-current curves of the two circuit-breakers, tolerances included ? the minimum difference between the trip time t2 of the circuit-breaker on the supply side and the time t2 of the circuitbreaker on the load side, whenever it is an Emax circuitbreaker, must be: - t2 supply side > t2 load side + 100 ms* t = cost - t2 supply side > t2 load side + 100 ms i?t = cost (<400 ms) - t2 supply side > t2 load side + 200 ms i?t = cost (>400 ms)
* in auxiliary power supply or in self-supply at full power, it is reduced to 70ms.

When the above conditions are met: ? if function I is active (I3=on), the maximum short-circuit current guaranteeing selectivity is equal to the setting value I3 (minus the tolerances) ? if function I is disabled (I3=off), the maximum short-circuit current for which selectivity is guaranteed must be equal to: - the value indicated in the table on page 6/12, if the circuitbreaker on the load side is a moulded-case circuit-breaker (MCCB) - the minimum value between the Icw of the circuit-breaker on the supply side and the Icu of the circuit-breaker on the load side, when both the circuit-breakers are Emax type.

6

ABB SACE

6/3

Primary and secondary distribution
Selective protection
Here is an example of total selectivity between three Emax circuit-breakers in series in a system with 415 V rated voltage and 70 kA prospective short-circuit current.

Ik = 70kA@415V Circuit-breaker A E6H 6300 PR122-LSI In 6300

Circuit-breaker B E3S 3200 PR122-LSI In 3200

Circuit-breakers
Name A B C Type E6H 63 E3S 32 E2S 12 Icu@415V 100 kA 75 kA 85 kA Icw 100 kA 75 kA 65 kA I1 1 1 1

L
t1 108 108 108

S (t=cost)
I2 10 10 10 t2 0,25 0,15 0,05

I
I3 off off off

As shown in the figure below, with the above-mentioned setting there is no intersection between the time-current curves of the different circuit-breakers and the minimum delay of 70 ms defined for the trip thresholds of protection S. Furthermore, exclusion of protection I (I3=off) guarantees selectivity as follows: ? up to 75 kA between A and B ? up to 75 kA between B and C. So, since the maximum prospective short-circuit current of the system is 70 kA, it is possible to talk of total selectivity.

Time-Current Curve

6

6/4

ABB SACE

1SDC200185F0001

1SDC200312F0001

Circuit-breaker C E2S 1250 PR122-LSI In 1250

Double S
Thanks to the new PR123 release, which allows two thresholds of protection function S to be set independently and be activated simultaneously, selectivity can also be achieved under highly critical conditions. Here is an example of how, by using the new release, it is possible to obtain a better selectivity level compared with the use of a release without ?double S?. This is the wiring diagram of the system under examination; in particular, attention must be focussed on: ? the presence, on the supply side, of a MV circuit-breaker, which, for selectivity reasons, imposes low setting values for the Emax circuit-breaker on the LV side ? the presence of a MV/LV transformer which, due to the inrush currents, imposes high setting values for the circuit-breakers on its primary side.

MV CB

MV/LV Transformer

6
Ik=22.6kA

LV/LV Transformer

ABB SACE

1SDC200313F0001

6/5

Primary and secondary distribution
Selective protection

Solution with a release without “double S”

LV/LV Trans. 315kVA

Time-Current Curve @ 400V

MV CB (PR521)
50 (I>): 50 A 51 (I>>): 500 A t=0.5s t=0s

E2N 1250 PR122 LSIG R1250 L Setting Curve Setting Curve Setting 0.8 108s 3.5 0.5s OFF

T5V 630 PR222DS/P LSIG R630 0.74 12s 4.2 0.25s 7

6

S I

t=constant

In the case of a short-circuit, the Emax E2 circuit-breaker and the MV circuit-breaker will open simultaneously with this solution. Attention must be paid to the fact that, owing to the value Ik, function I of the E2 circuit-breaker has to be disabled (I3=OFF) so that selectivity with the T5 on the load side is granted.

6/6

ABB SACE

1SDC200314F0001

Solution with the PR123 release with “double S”

LV/LV Trans. 315kVA

Time-Current Curve @ 400V

MV CB (PR521)
50 (I>): 50 A 51 (I>>): 500 A t=0.5s t=0s

E2N 1250 PR123 LSIG R1250 L S S1 S2 I t=constant t=constant t=constant Setting Curve Setting Curve Setting Curve Setting Curve Setting 0.8 108s 3.5 0.5s 5 0.05s OFF

T5V 630 PR222DS/P LSIG R630 0.74 12s 4.2 0.25s 7

1SDC200315F0001

6

As is evident, by means of the ?double S? function, selectivity can be achieved both with the T5 circuit-breaker on the load side as well as with the MV circuit-breaker on the supply side. A further advantage obtained by using the ?double S? function is the reduction in the time of permanence of high current values under short-circuit conditions, which results in lower thermal and dynamic stresses on the busbars and on the other installation components.

ABB SACE

6/7

Primary and secondary distribution
Selective protection

Dual Setting
Thanks to the new PR123 release, it is also possible to program two different sets of parameters and, through an external command, to switch from one set to the other. This function is useful when there is an emergency source (generator) in the system, only supplying voltage in the case of a power loss on the network side. In the system described below, in the case of a loss of the normal supply on the network side, by means of the ABB SACE ATS010 automatic transfer switch, it is possible to switch the supply from the network to the emergency power unit and to disconnect the non-primary loads by opening the QS1 switchdisconnector. Under normal service conditions of the installation, the circuit-breakers C are set in order to be selective with both circuit-breaker A, on the supply side, as well as with circuitbreakers D on the load side. By switching from the network to the emergency power unit, circuit-breaker B becomes the reference circuit-breaker on the supply side of circuitbreakers C. This circuitbreaker, being the protection of a generator, must be set to trip times shorter than A and therefore the setting values of the circuit-breakers on the load side might not guarantee the selectivity with B. By means of the ?dual setting? function of the PR123 release, it is possible to switch circuitbreakers C from a parameter set which guarantees selectivity with A, to another set which make them selective with B. However, these new settings could make the combination between circuit-breakers C and the circuit-breakers on the load side non-selective.

non-priority loads

6

1SDC200316F0001

6/8

ABB SACE

The figure at the side shows the time-current curves of the installation under normal service conditions. The values set allow no intersection of the curves.

Time current curves

The figure at the side shows the situation in which, after switching, the power is supplied by the power unit through circuit-breaker B. If the settings of circuit-breakers C are not modified, there will be no selectivity with the main circuitbreaker B.

Time current curves

This last figure shows how it is possible to switch to a set of parameters which guarantees selectivity of circuit-breakers C with B by means of the ?dual setting? function.

1SDC200318F0001

1SDC200317F0001

6

Time current curves

ABB SACE

1SDC200319F0001

6/9

Primary and secondary distribution
Selective protection

Zone selectivity
The zone selectivity, which is applicable to protection functions S and G, can be enabled in the case where the curve with fixed time is selected and the auxiliary power supply is present. This type of selectivity allows shorter trip times for the circuitbreaker closest to the fault than in the case of time-selectivity. It is a type of selectivity suitable for radial nets. The word zone is used to refer to the part of an installation between two circuit-breakers in series. The fault zone is the zone immediately on the load side of the circuit-breaker that detects the fault. Each circuit-breaker that detects a fault communicates this to the circuit-breaker on the supply side by using a simple communication wire. The circuit-breaker that does not receive any communication from those on the load side will launch the opening command within the set selectivity time (40÷200ms). We have to consider that the circuit-breakers receiving a signal from another release will operate according to the set time t2. If, for any reason, after the selectivity time, the circuit-breaker due to trip has not opened yet, it lets the ?block signal? fall on the other circuit-breaker, which will trip. To realize correctly the zone selectivity the following settings are suggested:
S I G Selectivity time t2 ? selectivity time + t opening * I3 = OFF t4 ? selectivity time + t opening * same setting for each circuit-breaker

* Trip duration for I < Icw (max) = 70 ms.

6

6/10

ABB SACE

To carry out the cabling, a shielded twisted pair cable (not supplied; ask ABB for information) can be used. The shield should only be earthed on the release of the circuit-breaker on the supply side. The maximum length of the cabling for zone selectivity, between two units, is 300 meters. The maximum number of the circuit-breakers which can be connected to the outputs (Z out) of a release is 3. The maximum numbers of the circuit-breakers which can be connected to the inputs (Z in) of a release is 20.
Note

All Emax circuit-breakers in versions B-N-S-H-V fitted with PR122 and PR123 releases allow zone selectivity to be realised.

With regard to selectivity in the case of earth faults with circuit-breakers in series, see page

6/20.

Zone 3

Zone 2

Zone 1

1SDC200186F0001

6

ABB SACE

6/11

Primary and secondary distribution
Selective protection

Selectivity tables Emax air circuit-breakers with moulded-case circuit-breakers
Supply-side Version Release Load-side Version Release Iu [A]

E1
B EL 800 1000 1250 1600 800 1000 1250 1600 N B N

E2
S EL 1600 1000 800 1250 2000 1250 1000 1600 1600 1250 2000 1600 2000 L* N S

E3
H EL V L* S

E4
H EL V H

E6
V EL 4000 3200 5000 4000 6300 5000 6300

T1

T2 T3

T4

T5

S6

S7

B C N N S H L N S N S H L V N S H L V N S H L S H L

TM

160

TM, EL

160

TM

250

TM, EL

250 320

TM, EL

400 630

TM, EL

800

EL

1250 1600

T T T T 36 36 36 T 36 T 36 36 36 36 T 36 36 36 36 T 36 36 36 – – –

T T T T T T T T T T T T T T T T T T T T T T T – – –

T T T T T T T T T T T T T T T T T T T T T T T T T T

T T T T T 55 55 T T T T 55 55 55 T T 55 55 55 T T 55 55 T 55 55

T T T T T 65 65 T T T T 65 65 65 T T 65 65 65 T T T 65 T T 65

T T T T T T T T T T T T 100 100 T T T 100 100 T T T T – – –

2500 1000 800 3200 1250 1000 1600 1250 2000 1600 2500 2000 3200 2500 3200 T T T T T T T T T T T T T T T T T T T T 75 T T T T T T T T T T T T T T T T T 75 T T 75 T T T T T T T T T T T 75 T T 75 T T T T T T T T T T T 75 T T T T T T T T 75

800 2000 1250 2500 1600 2000 2500 3200 T T T T T T T T T T T T 85 85 T T T 85 85 T T T 85 T T 85 T T T T T T T T T T T T 100 100 T T T 100 100 T T T T T T T

4000 3200 3200 4000 4000

T T T T T T T T T T T T T T T T T T T T T T T T T T

T T T T T T T T T T T T T T T T T T T T T T T T T T

T T T T T T T T T T T T 100 100 T T T 100 100 T T T T T T T

T T T T T T T T T T T T T T T T T T T T T T T T T T

T T T T T T T T T T T T 100 100 T T T 100 100 T T T T T T T

6

General prescriptions:
? Function I of the electronic PR121, PR122 and PR123 releases of the supply-side circuit-breakers must be excluded (I3 in OFF). ? Selectivity is expressed in kA at the supply voltage of 380-415 V AC in accordance with IEC 60947-2 Standards. side as well of the circuit-breaker on the supply side) ? It is of fundamental importance to verify that the settings chosen by the user for the releases placed both on the supply as well as on the load side do not result in intersections of the time-current curves for protection against overload (function L) and for protection against short-circuit with time-delayed trip (function S). * Emax L circuit-breakers with PR122/P and PR123/P releases only. ? T = total selectivity (the selectivity value is the lowest one between the breaking capacities (Icu) of both the circuit-breaker on the load-

6/12

ABB SACE

Primary and secondary distribution
Back-up protection
Back-up protection is required by the IEC 60364-4-43 Standards and Annex A of the IEC 60947-2 Standard, which allow the use of a protection device with breaking capacity lower than the prospective short-circuit current at the points where it is installed, provided that there is another protection device on the supply side with the necessary breaking capacity. In this case, the characteristics of the two devices must be coordinated in such a way that the specific energy let through by the combination is not higher than that which can be withstood without damage by the device on the load side, and by the protected conductors. In the diagram in the figure, circuit-breaker B, located on the load side of circuit-breaker A, can have a lower breaking capacity than the prospective short-circuit current in the event of a fault in ?C?, if circuit-breaker A is able to satisfy both of the following conditions: ? it has a suitable breaking capacity (higher than or equal to the prospective short-circuit current at its point of installation and obviously higher than the short-circuit current in ?C?) ? in the event of a fault in ?C? with short-circuit values higher than the breaking capacity of circuit-breaker B, circuitbreaker A must provide a specific let-through energy limiting function, limiting it to a value that can be withstood by circuit-breaker B and by the protected conductors. A fault in ?C? can therefore cause a double interruption, however the back-up protection must ensure that B always trips within the limits of its breaking capacity. It is necessary to choose switchgear combinations that have been verified by laboratory tests for this type of protection. The possible combinations are specified in ABB SACE documents and PC programs (Slide rule kits, DOCWin, etc.) and shown here for SACE Emax circuit-breakers. Back-up protection is used in electrical installations in which there is no essential need for contin

赞助商链接
相关文章:
ABB机器人的IO通信
ABB机器人的IO通信_计算机硬件及网络_IT/计算机_专业资料。abb,机器人,rapid指令 肇庆市技师学院 ABB[a]-J-4ABB 机器人的 IO 通信 4.1 任务目标 ? ? ? ...
ABB机器人的手动操作_图文
ABB机器人的手动操作_计算机硬件及网络_IT/计算机_专业资料。肇庆市技师学院 ABB[a]/-J-3ABB 机器人的手动操作 3.1 任务目标 ? ? ? ? 掌握手动操作机器人...
ABB
ABB_互联网_IT/计算机_专业资料。ABB 的 DCS 控制系统能够交付满足过程和电力自动化需求的最适合的控制和安全等 级,提供全面的生命周期支持来保护用户的投资,为...
ABB机器人学习_主要看这个
ABB 机器人培训资料 1、安全自动模式中,任何人不得进入机器人工作区域 长时间待机时,夹具上不宜放置任何工件。 机器人动作中发生紧急情况或工作不正常时,均可使用...
小学二年级上册abb词语
小学二年级上册abb词语_二年级语文_语文_小学教育_教育专区 暂无评价|0人阅读|0次下载|举报文档 小学二年级上册abb词语_二年级语文_语文_小学教育_教育专区。abb ...
ABB机器人简介
ABB机器人简介_机械/仪表_工程科技_专业资料。ABB机器人 ABB 机器人的组成 IRB 型机器人是著名的瑞典机器人生厂商 ABB 公司的产品, IRB 指 ABB 标准系列机器人...
ABB机器人权限设定
ABB机器人权限设定_机械/仪表_工程科技_专业资料。ABB机器人权限设定简明步骤UAS 介绍及设定一: 在电脑上安装与 ROBOT 系统同样或更高的版本的 ROBOT WARE 和 ROB...
三年级四字词语大全ABB ABAB ABCC AABC AABB ABAC
三年级四字词语大全ABB ABAB ABCC AABC AABB ABAC_其它课程_小学教育_教育专区。三年级下册词语类型总复习,包括ABB、 ABAB、 ABCC、 AABC 、AABB、 ABAC及带数字...
AABB ABB等格式词语
AABB ABB等格式词语_语文_初中教育_教育专区。要求背诵内容 AABB: 高高兴兴 干干净净 大大小小 花花绿绿 许许多多 来来往往 红红火火 多多少少 慌慌张张 急...
AABB式ABB式AAB式ABAC式词语大全
AABB式ABB式AAB式ABAC式词语大全_二年级语文_语文_小学教育_教育专区。AABB式ABB式AAB式ABAC式词语大全是老师教学和家长辅导孩子语文学习的好帮手。本资料适合小学各...
更多相关标签: