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施耐德 环网柜 说明书


AIR?INSULATED SWITCHGEAR

UNISARC Switchgear
Up to 24 kV - 630 A - 25 kA Operation Maintenance

Instructions
SDIOPM002-02 00

AREVA T&D

Table of contents

1 AREVA at your service ..................................................................................... 5 1.1 Our Service Unit: our specialists, and suitably adapted services....................................................................5

2 With regards to this User Manual ................................................................ 6 2.1 2.2 2.3 2.4 2.5 Responsibilities...........................................................................................................................................................6 Particular instructions for operations and interventions on energized equipment......................................6 Other technical notices to be consulted................................................................................................................6 Tools (not supplied) required for the oper ations describ ed in this user manual..........................................6 Symbols & conventions.............................................................................................................................................6

3 Functional interlocks........................................................................................ 7 3.1 3.2 3.3 Functional mech anical interlocks ...........................................................................................................................7 Interlocks for functions C and T1............................................................................................................................7 Interlocks for function CB.........................................................................................................................................7

4 Operating accessories..................................................................................... 8 4.1 4.2 4.3 Reminder for Manual Operations............................................................................................................................8 Operating accessories...............................................................................................................................................8 Key locks (optional)....................................................................................................................................................8

5 Use of the C function........................................................................................ 9 5.1 5.2 5.3 5.4 Opening the earthing switch....................................................................................................................................9 Closing the earthing switch......................................................................................................................................9 Closing the switch disconnector ...........................................................................................................................10 Opening the switch disconnector .........................................................................................................................10

6 Use of the T1 function................................................................................... 11 6.1 6.2 6.3 6.4 Opening the earthing switch..................................................................................................................................11 Closing the earthing switch....................................................................................................................................11 Closing the switch disconnector ...........................................................................................................................12 Opening the switch disconnector .........................................................................................................................12

7 Use of the CB function.................................................................................. 13 7.1 7.2 7.3 7.4 Opening the earthing switch..................................................................................................................................13 Closing the earthing switch....................................................................................................................................13 Closing the disconnector ........................................................................................................................................14 Opening the disconnector.......................................................................................................................................14

8 Maintenance..................................................................................................... 15 8.1 8.2 8.3 8.4 8.4.1 8.5 Levels of maintenance ............................................................................................................................................15 Preventive maintenance .........................................................................................................................................15 Corrective maintenance..........................................................................................................................................15 Replacement of the three fuses............................................................................................................................15 Replacement of a fuse ............................................................................................................................................16 Replacement of a signal lamp assembly ............................................................................................................17

3

9 Spare parts........................................................................................................ 18 9.1 9.2 9.3 The spare part ..........................................................................................................................................................18 Identification of materials.......................................................................................................................................19 Storage conditions...................................................................................................................................................19

10 Cable testing .................................................................................................. 20 10.1 10.2 Preparation of the function ....................................................................................................................................20 Cable testing .............................................................................................................................................................20

11 At the end of the equipment operational life ...................................... 21 11.1 11.2 11.3 Safety instructions...................................................................................................................................................21 Dismantling of the equipment service ................................................................................................................21 Distribution and recovery of the materials used for Unisarc..........................................................................22

12 Notes................................................................................................................. 23

4

1 AREVA at your service
Operations and maintenance may only be carried out by personnel who have received suitable authorisation for the operations and man?uvres they are responsible for performing. If this is not the case, please refer to our Service Unit or Training Centre. All locking?out operations must be performed according to the safety regulations currently being in force.

1.1

Our Service Unit: our specialists, and suitably adapted services

> Guarantee extension contracts in relation to the selling of new equipment, > Supervision of HVA switchgear installations, > Technical advice, diagnoses of the facilities, expertise, > Maintenance contracts adapted to operational constraints, > Systematic or conditional preventive maintenance, > Corrective maintenance in case of partial or complete failure, > Supply of spare parts.

KUA3400

Contact the AREVA Service Unit for diagnoses and advice: Working hours Phone No: +39 0377 417 351 7 office hours F a x: +39 0377 451133

5

2 With regards to this User Manual
? ? AREVA? 2008. AREVA, the AREVA logo and their figurative forms are AREVA registered trademarks. The other brand names mentioned within this document, whether they be copyright or not, belong to their respective holders.

2.1

Responsibilities
cations given in this document, must be observed. AREVA declines any responsibility for the consequences: > due to the non respect of the recommendations in this manual which make reference to the international regulations in force. > due to the non respect of the instructions by the suppliers of cables and connection accessories during installation and fitting operations, > of any possible aggressive climatic conditions (humidity, pollution, etc.) acting in the immediate environment of the materials that are neither suitably adapted nor protected for these effects. This user manual does not list the locking?out procedures that must be applied. The interventions described are carried out on de?energized equipment (in the course of being installed) or locked out (non operational).

Our devices are quality controlled and tested at the factory in accordance with the standards and the regulations currently in force. Apparatus efficiency and apparatus life depend on the compliance with the installation, commissioning and operation instructions described in this user manual. Non respect of these instructions is likely to invalidate any guarantee. Local requirements especially about safety and which are in accordance with the indi-

2.2

Particular instructions for operations and interventions on energized equipment
All manipulations must be completed once started. The durations (for completing the operations mentioned) given in the maintenance tables are purely an indication and depend on on?site conditions.

When commissioning and operating the equipment under normal conditions, the General safety instructions for electrical applications must be respected, (protective gloves, insulating stool, etc.), in addition to standard operating instructions.

2.3
> –

Other technical notices to be consulted

2.4

Tools (not supplied) required for the operations described in this user manual

> Flat, thin screwdriver (4) + medium > Leather gloves

2.5

Symbols & conventions
> Code for a product recommended and marketed by AREVA > Tightening torque value. > Example: 1.6 daN.m > Mark corresponding to a key CAUTION! Remain vigilant! Precautions to be taken in order to avoid accidents or injury FORBIDDEN! Do not do it! Compliance with this indication is compulsory, non compliance with this stipulation may damage the equipment. INFORMATION ? ADVICE Your attention is drawn to a specific point or operation.

6

3 Functional interlocks
3.1 Functional mechanical interlocks
"functional", intended to avoid any kind of operating error. It is necessary to know these interlocks in order to operate the switchgear correctly.

The UNISARC switchgear is equipped with internal mechanical interlocks, called

3.2

Interlocks for functions C and T1
Position Closed Switch disconnector Earthing switch Locked open Free ? ? Free Access to cables/fuse compartment Locked closed Dependant on the position of the earthing switch Free Locked closed

? ? Locked open Free Locked open

Switch disconnector Open Earthing switch Acces to cables compartment [C type] Acces to cables/fuse compartment [T1 type] Closed Open Open

?

Open

Locked open

Locked closed

?

3.3

Interlocks for function CB
Position Closed (Interlock key retained) Circuit breaker Disconnector Earthing switch Access cover to cable compartment

Locked closed Free with interlock key actuated (K.I) and dependant on the position of the earthing switch ?

Locked open

Locked closed

Circuit breaker Open (Interlock key released) Closed (Interlock key released) Disconnector Open (Interlock key retained) Closed Earthing switch Open Free with interlock key actuated Locked Open ?

Dependant on the position of the disconnector

Dependant on the position of the earthing switch

Free with interlock key actuated

Locked open

Locked closed

?

Free

Dependant on the position of the earthing switch Free

Open

Locked open

?

Free with interlock key actuated (K.I)

?

Locked closed

Access panel to the cable compartment

Open

Open

Locked open

Locked Closed

?

7

4 Operating accessories
4.1 Reminder for Manual Operations

All movements of the lever must be frank and complete.

4.2

Operating accessories

KUA3500

KUA4400 KUA38KV

Operating lever

Signal lamp

Locking eyelets with lock

4.3

Key locks (optional)

They are used, in order to prevent any possible wrong operations during the UNISARC switchgear use.

KUA36KV

KUA37KV

C version
A - Open line free key B - Close line free key C - Close earth free key D - Open earth free key

T1 version
E - Close earth free key F - Open earth free key

8

5 Use of the C function
5.1 Opening the earthing switch

KUA01KV

KUA01aKV

KUA02KV

> Act on the interlock, by shifting it upwards > Insert the operating lever into the earthing switch control.

> Grasp the lever with both hands.

> Turn the lever clockwise, up to reach the end of stroke. The mimic diagram indicator will turn from the closed earth position to the open earth

position . > Extract the operating lever.

5.2

Closing the earthing switch
Before closing the earthing switch, ensure there is no voltage across the voltage presence signal lamp.

KUA0300

KUA0300a

KUA04KV

> Act on the interlock, by shifting it upwards > Insert the operating lever into the earthing switch control.

> Grasp the lever with both hands.

>

Turn the lever counter-clockwise, up to reach the end of stroke. The mimic diagram indicator will turn from the open earth position to the closed

>

earth position . Extract the operating lever.

9

5.3

Closing the switch disconnector

KUA25KV

KUA05aKV

KUA06KV

> Be shure that the eyelets of the mechanical interlock are free. Move the interlock to downwards position.

> Insert the operating lever into the switch disconnector.

> Turn the lever clockwise, up to reach the end of stroke. The mimic diagram indicator will turn from the open line position to the

closed line position . > Extract the operating lever.

5.4

Opening the switch disconnector

KUA06aaKV

KUA06aKV

KUA05KV

> Insert the operating lever into the switch disconnector control.

> Grasp the lever with both hands.

> Turn the lever counter-clockwise, up to reach the end of stroke. The mimic diagram indicator will turn from the closed line position to the open

line position . > Extract the operating lever.

10

6 Use of the T1 function
6.1 Opening the earthing switch

KUA0700

KUA0700a

KUA08KV

> Act on the interlock, by shifting it upwards > Insert the operating lever into the earthing switch control.

> Grasp the lever with both hands.

> Turn the lever clockwise, up to reach the end of stroke. The mimic diagram indicator will turn from the closed earth position to the open earth

position . > Extract the operating lever.

6.2

Closing the earthing switch
Before closing the earthing switch, ensure there is no voltage across the voltage presence signal lamp.

KUA09KV

KUA09aKV

KUA10KV

> Act on the interlock, by shifting it upwards then isert the operating lever into the earthing switch control.

> Grasp the lever with both hands.

>

Turn the lever counter-clockwise, up to reach the end of stroke. The mimic diagram indicator will turn from the open earth position to

>

the closed earth position . Extract the operating lever.

11

6.3

Closing the switch disconnector

KUA11KV

KUA1200

KUA13KV

> Act on the interlock, by shifting it downwards.

> Insert the closing spring loading lever into the puposed seat.

> Grasp the lever with both hands. > Turn the lever clockwise, up to reach the end of stroke. The closing spring loading indicator will turn from the unloaded spring position loaded position . to the

> Extract the operating lever.

KUA14KV

> Close the switch disconnector by shifting upwards the closing / opening momentary lever switch. The mimic diagram indicator will turn from the open line position line position . to the closed

6.4

Opening the switch disconnector

KUA15KV

KUA16KV

KUA17KV

> Open the switch disconnector by shifting downwards the closing / opening momentary lever switch. The mimic diagram indicator will turn from the closed line position line position . to the open

> The closing spring loading indicator will turn from the loaded spring position . to the unloaded position

> NOTE: The switch disconnector opening can automatically take place following the action of one or more fuses that burn. In this case it takes place the automatic closing spring unloading. The relative spring indicator will turn from the loaded spring position unloaded position . to the

12

7 Use of the CB function
7.1 Opening the earthing switch

KUA18KV

KUA18eKV

KUA19KV

> Act on the interlock, by shifting it upwards. > Insert the operating lever into the earthing switch control.

> Grasp the lever with both hands.

> Turn the lever clockwise, up to reach the end of stroke. The mimic diagram indicator will turn from the closed earth position to the open earth position

. > Extract the operating lever.

7.2

Closing the earthing switch
Before closing the earthing switch, ensure there is no voltage across the voltage presence signal lamp.

KUA18aKV

KUA18aaKV

KUA18bKV

> Act on the interlock, by shifting it upwards then insert the operating lever into the earthing switch control.

> Grasp the lever with both hands.

> Turn the lever counter-clockwise, up to reach the end of stroke. > The mimic diagram indicator will turn from the open earth position the closed earth position > Extract the operating lever. . to

13

7.3

Closing the disconnector

KUA20KV

KUA21KV

KUA22KV

> Be shure that the eyelets of the mechanical interlock are free, otherwise remove the lock.

> Move the interlock to downwards position then insert the operating lever into the disconnector control slot.

> Grasp the lever with both hands. > Turn the lever clockwise, up to reach the end of stroke. The mimic diagram indicator will turn from the open line position to the closed line position

. > Extract the operating lever. > NOTE: Now, it is possible to extract the interlock key from the disconnector gear and to make it available to perform the circuit breaker closing operation (see VEIVACUUM L ? Instruction Manual – Operation and Maintenance).

7.4

Opening the disconnector

KUA2300

KUA24KV

KUA21aKV

> Extract the interlock key from the Circuit Breaker gear. > NOTE: The key removing is possible in the opening Circuit Braker status only (see VEIVACUUM L ? Instruction Manual – Operation and Maintenance).

> Insert the interlock key in the proper seat (K.I) near the disconnector slot. > Turn the key by rotating it clockwise.

> Move the interlock to downwards position then insert the operating lever into the disconnector control slot. > Grasp the lever with both hands. > Turn the lever counter-clockwise, up to reach the end of stroke. The mimic diagram indicator will turn from the closed line position to the open

line position . > Extract the operating lever.

14

8 Maintenance

8.1

Levels of maintenance
Description Levels 1 2

Operations recommended in the instructions manual "installation - operation - maintenance", carried out by suitably qualified personnel having received training allowing them to intervene whilst respecting the safety rules. Complex operations, requiring specific expertise and the implementation of support equipment in accordance with AREVA’s procedures. These must be carried out by AREVA or by a specialised technician trained by AREVA when starting the procedures, with the appropriate specific equipment. All preventive and corrective maintenance, all renovation and reconstruction work is carried out by AREVA.

3

8.2

Preventive maintenance
PREVENTIVE MAINTENANCE Recommended operations Frequency 6 years X X X X X X 1 X X X X X X Levels 2 X X X X X X 3 X X X X X X

Verification of the presence and condition of accessories (levers, etc.) Visual inspection of the exterior (cleanliness, absence of oxidation, corrosion or electrical discharge, etc.). Cleaning of external elements, of the insulators and all the insulating parts with a clean, soft and dry cloth. Verification of the positioning of the status indicators (open and closed) Verification of the functioning of the mechanical control mechanism by making several manoeuvres Visual surveillance of the general appearance of connections

8.3

Corrective maintenance
CORRECTIVE MAINTENANCE Replacements or modifications See § 8.4 8.5 1 X X Levels 2 X X 3 X X

Replacement of the three fuses Replacement of a signal lamp assembly

8.4

Replacement of the three fuses
Intervention Normal Possible Busbar de-energized energized Cables de-energized de-energized Tools required: > Leather gloves > Compartment key Switch disconnector open open Earthing switch closed closed

Locking out the Functional Unit All locking-out operations must be performed according to the particular rules for the network concerned.

Parts required: > 3 fuses with the same reference (verify values in accordance with the transformer power)

15

Before proceeding to carry out the operations for removing/installing the parts composing the UNISARC switchgear, be sure that the voltage was cut out to the primary circuit and to the auxiliary one.

See the corresponding chapter in the Installation Manual for the characteristics of the fuses.

The T1 function meets the IEC 6224-105 requirements; particularly, when whatever fuse intervenes the switch disconnector automatically opens. In this situation it is not possible to reclose it until the blown fuse is replaced. For reliability reasons, replacement of all of the three fuses is recommended.

8.4.1

REPLACEM ENT OF A FUSE For an apparently single phase fault, it is imperative that all 3 fuses be replaced. The body of a fuse can become very hot following a short circuit. Take standard precautions (leather gloves) before starting work. Whenever changing or fitting a fuse, close the compartment immediately afterwards to avoid letting dust and humidity enter.

KUA26KV

KUA32KV

KUA27KV

> Activation of one or more fuses leads > to three situations: - automatically opens the switch disconnector. The relative mimic diagram indicator will turn from the closed line position to the

> Moreover, automatically relieves the > closing control spring, signalled by the visual indicator, which turns position from loaded spring loaded spring . to the un-

> Ensure that the function’s earthing switch is closed. In this condition it will be possible to remove the fuses compartment access panel.

open line position . the fuses mimic diagram indicator will turn from the closed line position . to the open line position

KUA2800

KUA2900

KUA3000

> Lift the fuses compartment access panel so that to uncouple it from the side hooks > Fully remove the access panel then position it in a safety place.

> Remove the fuses from their seats.

> Insert the new fuses, taking care to install every fuse with the striker pointing upwards.

16

KUA3100

> Place the access panel to the unit rack holding it so that to intercept the side hooks then release the access panel to down lock position.

8.5

Replacement of a signal lamp assembly
Intervention Normal Possible Busbar de-energized energized Cables de-energized de-energized Tools required: > – Switch disconnector open open Parts required: > Signal lamp assembly. Earthing switch closed closed

Locking out the Functional Unit All locking-out operations must be performed according to the particular rules for the network concerned. Before proceeding to carry out the removal/installation operations of the parts composing the UNISARC switchgear, be sure that the voltage was cut off both to the primary circuit and to the auxiliary one.

KUA3900

> To remove the signal lamp assembly take it by two hands and detach it from the switchgear. To install the new signal lamp assembly fit the terminals to the proper holes of the switchgear and press till complete insertion.

17

9 Spare parts

9.1

The spare part
The replacement of these parts can only be carried out by a person who is suitably qualified and trained for this operation. For an explanation of the levels of maintenance, please refer to § 9.1.

Describes a part that is designed to replace a corresponding one with a view to re-establishing the original function.

Programmed replacement

Denomination

Replacement ever y 1

Levels 2 3

This concerns wearing parts, designed to be replaced after a predetermined number of uses. Use: Maintenance stock, necessary for optimum maintenance procedures every 6 years.

Fuses (by 3)

20 years

X

X

X

Levels Non-Programmed replacement Denomination 1 Describes spare parts whose replacement intervenes in the course of corrective maintenance. 2 3

Signal lamp assembly

X

X

X

Levels Exceptional replacement Denomination 1 Fuses Operating Lever Shunt closing release Describes the spare parts or assemblies whose foreseeable service life is at least equal to that of the equipment. Use: Spare parts or sub-assemblies conserved in a safety stock. Shunt open release Auxiliary contacts Key lock kit Voltage detecting systems Capacitive insulator Door andle X X X X X X X X X 2 X X X X X X X X X 3 X X X X X X X X X

18

9.2

Identification of materials
For all orders for spare parts, it is necessary to enclose the equipment characteristics form.

9.3

Storage conditions
facilitate the search, they must be marked by the AREVA reference number. Certain components are fragile, they should preferably be stored in their original packaging.

The components should be stored away from dust, humidity or the sun. In order to

19

10 Cable testing

10.1 Preparation of the function
> The operations indicated in this Paragraph must be exclusively carried out by specialist technicians, in full observance of all the rules in force about electrical safety. > Before proceeding to execute any operation on the apparatus, make sure that the vacuum circuit-breaker is open and that all opening and closing are unloaded, that the switch-disconnectors or the disconnectors are open and that the earthing switch is positioned on "earth". > Before intervening on the apparatus, bring into safety conditions the installation part on which it is necessary to work. Implement lockout rules in accordance with the regulations specific to each network.

10.2 Cable testing

KUA4000

KUA4100

>

Open the switch disconnector by turning the operating lever counterclockwise, up to reach the end of stroke. The mimic diagram indicator will turn from the closed line position to the open line position .

> Connect the cable testing kit to the connection terminals.

>

Open the earthing switch by turning the operating lever counter-clockwise, up to reach the end of stroke. The mimic diagram indicator will turn from the close earth position to the

>

Close the earthing switch by shifting the interlock upwards and turning the operating lever clockwise, up to reach the end of stroke. The mimic diagram indicator will turn from the open earth position to the closed earth posi-

>

tion . Fully remove the cables compartment access panel then position it in a safety place.

open earth position . > Now, it is possible to perform the test cable activities. > Before to set the switchgear at work, proceed as follows: - close the earthing switch. - re-install the cables compartment access panel.

KUA4200

20

11 At the end of the equipment operational life

KUA43KV

11.1 Safety instructions
Do not dismantle the mechanical control mechanism springs without releasing the device.

11.2 Dismantling of the equipment service
Consult AREVA for all decommissioning services. > Remove all electrical equipment (coils, motors, etc.). > On disassembly, the materials must be sorted and sent on via the appropriate recycling channels.

21

11.3 Distribution and recovery of the materials used for Unisarc
Total weight: Unisarc (C) = 234.4171 kg W eight (kg) 181.72 34.253 6.616 1.574 Total 224.163 95.568 Yes

Metals-incl. inserts Steel Copper and copper-based alloys Stainless steel Aluminium and aluminium alloys

% of Materials

Recover y Yes

Thermosetting parts Polyesters Polyurethane Total

W eight (kg) 7.764 0.075 7.839

% of Materials

Recover y No (sent to Technical Burial Centres)

3.342

Thermo-plastics Polyamides Nylon Neoprene Polycarbonate Acetate Polycarbonate Teflon Silicone Polypropylene Others Total

W eight (kg) 1.695 0.207 0.195 0.142 0.057 0.054 0.03 0.02 0.012 0.003 2.415

% of Materials

Recover y

Yes

1.03

Others Grease Painting Lubricant Total

W eight (kg) 0.11 0.011 0.02 0.141

% of Materials

Recover y

No

0.06

__________________
1

Total weight without the weight of cables connections and parts under 1g

22

12 Notes

If you have any comments on the use of this document or on the use of the equipment and services that are described in it, please send us your remarks, suggestions and wishes to:

AREVA Service Strada Comuna le Dell a Bragli a, 12 - 26862 Guard amigli o (Lodi) - ITALY Phone +3 9 0377 41 7 351 Fax +39 03 77 45 1133
-

23

Our policy is one of continuous development. Accordingly the design of our products may change at any time. Whilst every effort is made to produce up to date literature, this brochure should only be regarded as a guide and is intended for information purposes only. Its contents do not constitute an offer for sale or advise on the application of any product referred to in it. We cannot be held responsible for any reliance on any decisions taken on its contents without specific advice.

AREVA T&D Strada Comunale Del la Bragl ia, 12 - 26862 Guar damig lio (Lodi) - ITALY Phone +3 9 0377 41 7 351 Fax +3 9 0377 41 7 4511 33

Products-L4AS-Unisarc-71912-V1-EN-SDIOMP002-02 0 0(0 8/ 200 8) ? - A REVA - 2 008 . A REVA , the A REVA log o an d any alte rna tive ve rsion the reo f a re t rad emarks and s ervice marks of A REVA . The o the r names me ntion ed, regis ter ed o r n ot, a re the pro per ty of the ir respe ctive c ompanies .


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