MCset 17.5 kV - Schneider...

Medium Voltage Distribution

Air insulated switchboard Withdrawable switchgear SF6 or vaccum technology

MCset 17.5 kVInstruction for useApril 2012

version 0507897302EN.indd 1

Contents

General 2Glossary 2Earthing switch control symbols 2Moving part control symbols 3Recommendations 3Standard tightening torques 3

Generaldescription 4Warning for readers 4AD cubicle 4TT1, TT2 cubicles 5CL-GL cubicles 5RHB, RHC cubicles 6Withdrawable mobile part 6Identification 9Read the inscriptions on the front panel 9

Instructionsforaccesstotheinsideofacubicle 11AD cubicle 11Removing front protection cover panels 12Removing the MV compartment separation sheet 13Removing the manhole sheet 14Removing and inserting fixed or withdrawable VTs 14Removing the stop arc sheet in the cable compartment 15Accessing busbars 15Accessing the main contacts 16

Installationandoperationrecommendation 17

Stepsforthetests 18Voltage presence on MV cables 18MV cable tests 18

OperatingInstructions 20Extracting or inserting the mobile part 20Racking-in the mobile part 25Racking-out the mobile part 26Closing the earthing switch 27Opening the earthing switch 29Racking-in VT fuses 31Racking-out VT fuses 32Preventing access using padlocks 33Locking with key locks (option) 35Locking with electromagnet (option) 36Preventive and corrective maintenance 36

Correctivemaintenance 37Replacement of VT box fuses 37Replacing the fans on 3600 A/ 4000 A cubicles 39Replacing the capacitor 40

Annexe 41Adaptation/instructions - Replacement of the voltage presence type VPIS 1 by type VPIS 2 and VPIS 2 by VPIS 2 41

Index 51

2 07897302EN.inddversion 05

General

Open earthing switch mechanical indicator.

Operation position.

Rack-in or racked-out position.

Rack-in prevention position. Locking possible.

Glossary UF Functionnal Unit (cubicle + mobile part + Sepam)

AD Incoming / feeder cubicle

CL-GL Withdrawable line coupling cubicle

TT Measurement and busbar earthing cubicle

RHB Connection from the top by bar

RHC Connection from the top by cable

MTP Connection enclosure between an MCset cubicle and a MOTORPACT cubicle

DI Fuse switch feeder cubicle

TT Voltage transformer

TC Current transformer or current sensor

VPIS Voltage Presence Indicator System

LV Low voltage

MV Voltage class, including levels 7.2 - 12 and 17.5 kV

SMALT Earthing switch

Mobilepart

LF SF6 withdrawable circuit breaker which is used in AD and CL cubicles

Rollarc400 SF6 breaking withdrawable contactor used in AD1 cubicle

EVOLIS Vacuum circuit breaker which is used in AD and CL cubicles

CTV1 Vacuum breaking withdrawable contactor used in AD1 cubicle

OED Tool to remove/insert the mobile part from the switchgear. The tool allows to place the mobile part on the floor.

Extractiontable Tool to remove/insert the mobile part from the switchgear. The tool DOES NOT allow to place the mobile part on the floor.

Note: this document is available for all the units ordered from April 2012.

Earthingswitchcontrolsymbols


Marking

All type of equipment installation such as lamp or light are forbidden.Installationabovetheswitchboard

Recommendations

General

It is compulsory forbidden to walk on the parts with this label.

It is compulsory forbidden to remove the parts bearing this marking when the equipment is energised.

ItisnecessarytohaveaheightofceilingHu3mtoinstallatunnel.Height(H)ofceilingforinstallationofananti-arcorIPX1/IPX2tunnel

Applicationmethods:

The elastic washers placed on the external sides of the connections and busbars ensure better distribution of stress induced by the screw torque.

Screw TorqueinNmØ 6 13

Ø 8 28

Ø 10 50

Ø 12 75

Ø 14 120

(nongreasedscrewsandbolts)

Standardtighteningtorques

Insertion / extraction position.

“Racked-out” position.

“Racked-in” position.

Operation position.

Position can be locked using pad lock.

Closed earthing switch mechanical indicator.

Movingpartcontrolsymbols


Incomer/FeederwithwithdrawableVTfuses

Incomer/FeederwithoutVTorwithfixedVT

A: LV compartment door B: protection, monitoring, control by Sepam C: compartment door mobile part D: position inspection windows of the mobile part E: operation and locking plate of the mobile part F: voltage indicators G: earthing switch operation and locking plate and padlocking of the mobile part H: access panel to connection compartment of MV cables or withdrawable VT fuses I: visualisation windows of cables or of VT fuse position J: operation and padlocking plate of withdrawable VT fuses

K: fan box (on 3600 A / 4000 A) L: cable box (on 3600 A / 4000 A)

AD1630/1250AAD2630/1250AAD32500/3150/3600/4000A

ADcubicle

As the MCset range is very extensive and presents a vast number of front panel options, we have decided to present a Functional Unit presentation equipped with the maximum switchgear.

Warningforreaders

Generaldescription


BusrisercubicleCircuit-breakercouplingcubicle

A: LV compartment door B: protection, monitoring, control by Sepam C: compartment door mobile part D: position inspection windows of the mobile part E: operation and locking plate of the mobile part F: voltage indicators G: earthing switch operation and locking plate and padlocking of the mobile part H: visualisation windows of cables or of VT fuse positionI: access panel to withdrawable VT fuses and to the lower busbar compartments J : operation and padlocking plate of withdrawable VT fuses K: fixed busbar bridge compartment doorL: fan box (on 3600 A / 4000 A).

WithupstreamordownstreamVTwithwithdrawablefuses

CL-GLcubicles

VoltagetransformerswithoutVTorwithfixedVT

Voltagetransformerswithwithdrawablefuses

TT1,TT2cubicles

A: LV compartment door B: protection, monitoring, control by Sepam C: visualisation windows D: voltage indicators E: earthing switch operation and locking plate and padlocking of the mobile part F: access panel to connection compartment of MV cables or withdrawable VT fuses G: visualisation windows of cables or of VT fuse position H: operation and padlocking plate of withdrawable VT fusesI: fixed busbar bridge compartment door.

Generaldescription


Withdrawablemobilepart

A: LV compartment door B: protection, monitoring, control by Sepam C: mobile part compartment door D: position inspection windows of the mobile part E: operation and locking plate of the mobile part F: voltage indicators G: earthing switch operation and locking plate and padlocking of the mobile part H : acces panel to the busbars or to the withdrawable VT fusesI : visualisation windows of busbars or of VT fuse position J : operation and padlocking plate of withdrawable VT fusesK : connection through the top using busbars (RHB) or cables (RHC)L : fan box (on 3600 A / 4000 A).

RHB1,RHC1630/1250ARHB2,RHC2630/1250ARHB3,2500/3150/3600/4000ARHC3,2500/3150AwithVT’swithwithdrawablefuses

RHB,RHCcubicles

LF1

LF2

Generaldescription


Note: option available in 3 widths.

BusbarearthingtruckLF

Note: available in 3 widths.

DisconnectortruckLF

LF3

Generaldescription

ROLLARC400CTV1



Evolis


BusbarearthingtruckonEvolisbase

Generaldescription

EvolisHP

BusbarearthingtruckEvolisHP


A: procedure pictogramB: withdrawable mobile partC: earthing switch plateD: withdrawable fuse voltage transformer plate.

Readtheinscriptionsonthefrontpanel

Ex:ADfunctionalunit

A: name of the cubicleB: manufacturer’s labelC: characteristics, designations and serial number.

LForEvolisHPwithdrawablemobilepart

D: characteristics, designations and serial number.

RollarcorCTV1withdrawablemobilepart

E: characteristics, designations and serial number.

Evoliswithdrawablemobilepart

F: characteristics, designations and serial numberG: location of operating instructions (behind the cover).

Identification

Generaldescription


4 : earthing switch position selector5 : opening for the insertion of the earthing switch operating handleG : voltage presence H : rack-in prevention selector switchL : mechanical indicator of earthing switch statusM : location for rack-in prevention lockN : location for earthing switch locks.

Earthingswitch,voltagepresenceandrack-inprevention

Cubicle

1: mechanical opening push-button2: mobile part position selector 3: opening for inserting mobile part operating handle E: mechanical indicator for indication of the mobile part positionF: location for disconnector truck lock (optional).

Mobilepart

1: mobile part operation2: earthing switch operation.

Procedurepictogram

6 : position selector switch for voltage transformer withdrawable fuses7 : opening for the insertion of the voltage transformer withdrawable fuse operating handle.

Withdrawablevoltagetransformer

Generaldescription


ADcubicle

Instructionsforaccesstotheinsideofacubicle

Markingsabove

Access

1 To the lower compartment via the maintenance space or gutter(access to CT’s also).

2 Rear (removal is optional and is not secured by interlocks).

3 Facilitates access to cables (AD cubicle ), through the front(access to Ct’s also).

4 To the busbars (not possible for TT cubicle).

4and5 To the rear inter cubicle fastening screws.This sheet must be reassembled before installation of busbars.

6 To the lower compartment through the front (access to CT’s and VT’s also).

7 To the mobile part.

8 To low voltage box.

Alloperationsdescribedhereaftermustbecarriedoutincompliancewiththesafetystandardsinforce,undertheresponsibilityofacompetentperson.


Cubicleequippedwithvoltagetransformerwithwithdrawablefuses

Cubiclewithorwithoutfixedvoltagetransformer(VT)

Removingfrontprotectioncoverpanels

Close earthing switch (see chapter “Closingtheearthingswitch”).

It is recommended to padlock it in this position (see chapter “Padlockingandpreventingaccesswithpadlocks”).

Withdraw VT fuses (see chapter “Racked-outVTfuses”).

InthecaseofacubicleequippedwithafixedVT.

Open the protection switch of the VT secondaries which is located in the troughs or in the LV box.

Close earthing switch (see chapter “Closingtheearthingswitch”).

It is recommended to padlock it in this position (see chapter “Padlockingandpreventingaccessusingpadlocks”).

Remove the panel (10 screws).

Closure

To put back into operation, carry out operations in the reverse order of removal (closed earthing switch).


IncaseupstreamVT,presenceofvoltageinthecablescompartmentevenifthecircuit-breakeroftheswitchgearisracked-out.

IncaseupstreamVT,presenceofvoltageinthecablescompartmentevenifthecircuit-breakeroftheswitchgearisracked-out.


To put back into operation, carry out operations in the reverse order of the removal.Closure

Remove the circuit-breaker (see chapter “Removingandinsertingthemobilepart”).

RemovingtheMVcompartmentseparationsheet

Remove the access panel to the Vt’s fuses (6 screws).

Open the protection switch of the VT secondaries which is located in the troughs or in the LV compartment.

Remove screws A and remove the separation sheet from the MV compartment.

To put back into operation, carry out operations in the reverse order of removal (closed earthing switch).

Closure

Remove the access panel to the connection compartment of MV cables (4 screws).


Remove the L bracket at the front of the cubicle (4 screws and 2 nuts).


ClosingtheMVconnectioncompartment

SimilaroperationwhatevertypeofVT

Removing and inserting fixed orwithdrawableVTs

Closure

Removingthemanholesheet

ForfixedVTsTighteningtorqueonVT:30Nm.

To put back into operation, carry out operations in the reverse order of removal.

On each VT, disconnect the connection bar, by unscrewing the screw and lift the connection bar.

To put back into operation, carry out operations in the reverse order of removal.

On a cubicle equipped with VTs, remove them.

Remove the screws and remove manhole sheet.

Access to the connection compartment of MV cables is possible via the maintenance space.

Likewise, it is possible to access the maintenance space or gutter through the inside of the cubicle.

See chapter “Instructionsforaccesstotheinsideofacubicle”.

FixedVTs

Remove the VTs using the handle.Disconnect the VT low voltage connector.


Access to the MV cable connectioncompartement is possible through the maintenance space by removing the cubicle manhole sheet.


Access to lower busbars is possible through the maintenance space by removing the cubicle manhole sheet.

See chapter “Instructionsforaccesstotheinsideofthecubicle”.

Lower

For access to busbars, see chapter “Instructionsforaccesstotheinsideofthecubicle”.

Upper

Safetyrules

Accessingbusbars

Removingthestoparcsheetinthecablecompartment

Connect the VT low voltage connector.


During the first VT insertion, cut and remove the wire ties on the connector.

All operations described hereafter must be carried out in compliance with the safety standards in force, under the responsibility of a competent person.

ThissheetMUSTbereassembledbeforethecubicleisre-energized.

Remove the 6 fixation screws (A)in order to take off the sheet.


The shutters will fall and will lock in the down position.To close, pull the the shutters up until they lock.

Using a screwdriver, raise the flat spring to release the lock.Push the ball into the link axis.

Openingandclosinguppershutters

The shutters will fall and will lock in the down position.To close, pull the the shutters up until they lock.

Using a screwdriver, raise the flat spring to release the lock.Push the ball into the link axis.

Openingandclosinglowershutters

Safetyrules

Accessingthemaincontacts


All operations described hereafter must be carried out in compliance with the safety standards in force, under the responsibility of a competent person.

Before racking-in the mobile part, ensure that the shutters mechanisms have been put back into their initial position (locked closed). Failure to comply with this instruction may result in damage to the equipment.


Installationandoperationrecommendation

Operationandmaintenance

Theswitchgear’sresistancetoageinginanMVsubstationdependson3mainfactors:

b Version3600A/4000A: We strongly recommend that you clean the ventilation grids Aand B regularly (every 2 years): A: standard grids B: grids only on RHB version.

b Afanmonitoringsystemmustbe installedwiththecubiclecontrol andmonitoringdevices. Permanentoperationofthe followingmustbeguaranteed:

Cubicles typesFans quantity

3600 A 4000 AAD3, CL3 1 2

RHB3 2 4

Itisstronglyadvisedtoperiodicallycarryout, (minimun every 2 years approximately),afewoperationcyclesonoperatingdevices.

Outsidenormalconditionsofuse,(between-5°Cand40°C,absenceofdust,corrosivegas,etc.),itisrecommendedtoexamine,withourSchneiderElectricservicescentre,thestepstobetaken,inordertoensureproperoperationoftheinstallation.

After 6 to 12 month operations, we recommend you to check the busbars and MV cable connection tightening. It should be done with a calibrated torque wrench, adjusted to the torque values indicated in page 4.If no issues are detected and if the busbars and cable connections haven’t been modified, it will not be necessary to redo this verification.

1/Theneedofproperconnections:New cold retractable or slip-on technology are easy to install and offer good reliability over time.Their design allows them to be used in polluted environments with harsh climatic conditions.

2/Impactoftherelativehumidityindex:Installing a heating device is essential in climates with high relative humidity levels and big temperature shifts.Ensure that draughts and / or thermal shocks are avoided in all cubicle compartments in order to avoid the creation of dew points (sources of partial discharges).

The equipment must be installed in conformity with the relevant IEC standard. Outside of these normal usage conditions, we recommend contacting Schneider Electric to determine the operations to be carried out as well as their frequency according to the actual service conditions.

3/Electricalroomventilationcontrol:Ventilation size must be suited to the power dissipated in the substation. These ventilations must be placed exclusively at the vicinity of the transformer, in order to avoid air circulation on the MV switchboard.

In case of disassembly, the elastic washers must be changed and replaced by new ones supplied by Schneider Electric.

Ourservicecentreisatyourdisposalatanytime:bto diagnose the installation,bto offer, suitable maintenance operations,bto offer maintenance contracts,bto offer adaptations.

An MCset 17.5 kV Maintenance and Services guide is available. It gives practical information on:b maintaining the equipment in good operation,b ensuring that the equipment is safe during all installation, repair and service operations.DEAI03EN/ART833121DEAI03FR/ART833120


Close the earthing switch.

See chapter “Closingtheearthingswitch”.

Check voltage absence.

Voltage indicator lights are not lit.

Onfeedercables(withoutVT)

VoltageinjectionsonMVcableheads

Open earthing switch.Cables connected to injection tools.

Testcondition

MVcabletests

A: voltage presence indicator light (1 for each phase)B: connection outlets for the phase concordance unit.

Once the cables are energised, the voltage indicator lights should light up.

TheindicationofaVPISaloneisnotenoughtoensurethatthesystemisde-energised:

iftheoperationrulesrequirethis,thensuitablevoltagedetectorsincompliancewithIEC61243mustbeused.

Instructionforuse

VPIS:Voltage Presence Indicator System, a box with 3 integrated lamps.

Characteristics:The “voltage presence” indication is only ensured on the voltage range stipulated by IEC 61958.

CubicleequippedwithVPISvoltageindicator

VoltagepresenceonMVcables

Stepsforthetests

VPISmustnotbeusedasaVDS(VoltageDetectingSystems).

Itismandatorytorack-outthecircuit-breakeroftheswitchgearor/andopenthecircuit-breakeroftheupstreamfeeder.

When the ambient light is bright, it may be necessary to improve visibility by protecting the indication lights.


Open the earthing switch. See chapter “Openingtheearthingswitch”, then carry out the tests.

Attheendofthetests:

- Close the earthing switch- Remove the accessories of the cable injection.- Install the front panels.

Connect the voltage injection circuit to cable lugs.

Remove the front panels.

See chapter “Instructionsforaccesstotheinsideofacubicle”.

Stepsforthetests


OperatingInstructions

BringtheERTintoposition(thepinsshouldbeinsertedinsidethecubicleholes).

Disconnect the LV auxiliary plug by pressing on the red button and by pulling the plug lock (circuit-breaker or contactor).

Open the access door to the mobile part by pulling then turning the handle towards the right.

Extraction

Note: the following operations are described using the ERT (tool to remove/insert the mobile part from the switchgear that also allows to place the mobile part on the floor), the operation of the extractiontable is similar.

These tools can be adjusted in width and height. Refer to the instruction manuals.

Cubicle + mobile partin a disconnected /test position.

Start

Extractingorinsertingthemobilepart


Lock the ERT by pushing in and then turning towards the right the two latches. Check that the ERT is locked.

Secure the 2 ERT castors.

Unblock the ERT castors.Back up a little and slowly the ERT from the switchgear. Take down the mobile part by turning the ERT operating handle.

UnlocktheERTbyturningtowardtheleftandpullingoutthelatches.

Change the position of the selector

2 to and pull out the mobile part

using the handles A until it bottoms the ERT.Change the position of selector switch 2 back to .

Note: the travel of the CB on the ERT must be done with the CB close to the ground.




Close the access door to the mobile part by turning the handle towards the left, then pushing it.

Before closing the cubicle door, pull down the black cover.

Remove the ERT.


Change the position of the selector

2 to .

Push the mobile part into the cubicle until it bottoms it and change the position of the selector 2 back to .

LocktheERTbypushinginandthenturningtowardstherightthetwolatches.CheckthattheERTislocked.

Bring the ERT in position (the pins should be inserted inside the cubicle holes).

Secure the 2 ERT castors.

Open the access door to the mobile part by pulling then turning the handle towards the right.

Insertion




To connect the LV plug, push the red button and hold in position. Connect the LV plug and secure it by latching it.

Unlock the ERT by turning toward the left and pulling out the latches.

Unblock the 2 ERT castors and remove it.

Close the access door to the mobile part by turning the handle to the left then pushing it.

Before closing the cubicle door, lift the black cover and latch it up. Ensure that it well latched up.


Change the position of selector 2

to .

Insert the operating handle into opening 3.

Rack-in the mobile part by turning the operating handle (45 turns) clockwise until the position indicator changes its status.

Lower the protective flap of push-button 1. Press push-button 1, and while keeping it pushed down. Change the position of selector 2

to .

Operation

Door closed Selector 4 to (open earthing switch)

Selector H in racked-in or racked-out

position to

Start

Racking-inthemobilepart

The pictogram with a black background at the front is a reminder of the operations.

The circuit-breaker or contactors are electrically operationnal to energise the downstream circuit.



The mobile part is racked-out, disconnected or in test position.


to .

Insert the operating handle into opening 3. Rack-out the mobile part by turning the crank (45 turns) anti-clockwise until the position indicator changes its status.

Press push-button 1 (which sends an order for the mechanical opening of the circuit-breaker). While keeping it pushed down, change the position

of selector 2 to .

Operation

The mobile part in the racked-in.Start

Racking-outthemobilepart

The pictogram with a black background at the front is a reminder of the operations.



Insert the operating handle into the hole 5, and turn it clockwise until the position indicator changes status.

The closing is quick and makes a noise.


to , by pulling it and turning

it towards the right.

Operation

The mobile part is racked-out or ready to be extracted or out of the switchgear.

Checkthatthevoltagepresencelightsarenotlit.

The safety key locks are in a state that allows the following operations.

Start

Closingtheearthingswitch



The pictogram with a yellow background at the front, is a reminder of the operations.

The earthing switch is closed.The MV cable heads are short-circuited and earthed.

Change the position of selector 4 to ,

by pulling it and turning it towards the right.



Closedearthingswitch

The safety key locks are in a state that allows the following operations.

Start

Openingtheearthingswitch

Change the position of selector

4 to by pulling it and turning it towards the left.

Insert the operating handle into the hole 5, and turn it anti-clockwise until position indicator changes status.

The opening makes a noise.



it towards the left.

Operation



The earthing switch is open.

The pictogram with a yellow background at the front,is a reminder of the operations.




to , by pulling it and turning it

towards the right.

Insert the operating handle into the hole 7, and turn it clockwise until it is racked-in.Rack-in is completed when resistance can be felt (stop).



it towards the right.

Operation

Selector 6 to

Thelowerfrontpanelsareinstalledonthecubicle

Start

Racking-inVTfuses

The pictogram with a blue background at the front, is a reminder of the operations.





it towards the left (the front panel to access the fuses can now be removed).

Insert the operating handle into the hole 7 and turn it anti-clockwise until racked-out.


to , by pulling it and turning it

towards the left.

Operation

Selector 6 to

Thelowerfrontpanelsareinstalledonthecubicle

Start

Racking-outVTfuses

The pictogram at the front, is a reminder of the operations.



Press on the shutter guide, place the slides (1 and 2, 1 or 2) and insert the padlocks in the holes.

The shutter operating mechanism is located inside the cubicle, on the right side.

Forbidtheopeningwithpadlock

On the operating mechanism of the shutters, when they are closed.

Preventingtheopeningoftheshutters(option)

Place1to3padlocksontherack-inpreventionselectorH.

Rack-in forbidden if in

Preventingtherack-inofamobilepart

3 padlocks on the earthing selector in open or closed position.

3 padlocks on the selector the VT’s box with withdrawable fuses for either rack-in or rack-out position.

3 padlocks on the rack-in prevention selector.

1 padlock on the operating mechanism of either the top or bottom shutters.

1 padlock on the protective flap of the mechanical opening push-button of the mobile part.

Nota:usedpadlocksØ6to8mmtobeused.

Numberofpossiblepadlockspercubicletype

Preventingaccessusingpadlocks

Foru31kA/1sinternalarcswitchgears:the shutter operating mechanism is accessible after removing the right side sheetmetal (2 screws A).


Themetalsheetmustbere-installedbeforeinsertingthemobilepartinsidetheswitchgear.

1: top shutters lock 2: bottom shutters lock.


Racked-out fuses: place 1 to 3 padlocks on selector 6 to prevent rack-in.

Racked-in fuses: place 1 to 3 padlocks on selector 6 to prevent rack-out.This also prevents removalof the front panel.

PreventingtheoperationofVTfuses

Closedearthingswitch: place 1 to 3 padlocks on selector 4 to prevent the opening.This also prevents the rack-in of the mobile part.

Openearthingswitch: place 1 to 3 padlocks on selector 4 to prevent the closure.

Preventingtheoperationoftheearthingswitch

Place 1 padlock on the push-button protective flap 1.

It can also be used as an additional lock to prevent rack-in and rack-out.

Preventingthemechanicalopeningofthemobilepartduringoperation



(2 O) or (2 F) or (1 O et 1 F) or (1 O) or (1 F).

Lockingtheearthingswitchwithtwolocks

1 lock in open position1 lock in closed position

Lockingtheearthingswitchwithonekeylock

The key is only released when the rack-in prevention is locked.

Closed disconnector

Racked-in disconnector truck

Lockingthedisconnectortruckintheracked-inposition

The mobile part is racked-out.The selector is pulled out.

Lockingtoforbidtherack-inofthemobilepart.

Disconnector truck (withdrawable busbar bridge): 1 lock in the racked-in position (on the disconnector).

Mobile part in a racked-out position: 1 lock on the cubicle (2 O) or (2 C) or (1 O and 1 C) or (1 O) or (1 C): on earthing switch.

Numberofpossiblelocks

Lockingwithkeylocks(option)

The key is only released when the disconnector is racked-in and locked in this position with the selector.



The electromagnet automatically locks the selector when it is pulled out.

A push-button located on the low voltage compartment will allow to unlock if the switchgear is in the proper state.

Electromagnetic lock prevents the rack-in of the mobile part.

Lockingtoforbidtherack-inofthemobilepart.

Theelectromagnetautomaticallylockstheearthingswitchinthe“open”and“closed”position.

Apush-buttonlocatedonthelowvoltagecompartmentwillallowtheoperationofselectorswitch4,iftheswitchgearisintheproperstate.

Lockingtheearthingswitch

Lockingwithelectromagnet(option)


Preventiveandcorrectivemaintenance

An MCset 17.5 kV Maintenance and Services guide is available. It gives practical information on:

b maintaining the equipment in good operation,b ensuring that the equipment is safe during all installation, repair and service operations.

DEAI03EN/ART833121DEAI03FR/ART833120.

A

B

D

E

F

E


Removing

Remove the front panel (see chapter “Instructionsforaccesstotheinsideofacubicle”).

Racked-out fuses and VT’s LV plug unplugged (see chapter “Operatinginstructions”).

Start

ReplacementofVTboxfuses

Correctivemaintenance

Lift holder A. Disconnect the small vertical rod B.

Pivot the striker pads C into a horizontal position.

Carefully remove the pin from the striker pads D.

Push the plug E and turn towardsthe left and release. The fuse is unlocked.

Remove the plug and the fuse.

C


Insert the fuses, with the strikers facing the front.Place the plugs on the fuses (spring towards the bottom).

Place the spring on the plug and check that it is flush against the bottom of the plug and placed between the two clips indicated by the arrows.

Installing


Connect the small vertical rod B and ensure free operation of the link A.

Turn it towards the right and release. The fuse is locked, check that the plug is well locked.

Push the plug E.

Carefully insert the pin on the striker pin C.

Snap the link A et lift it to place the striker pads C in a vertical position.


Install the front panel (see chapter “Instructionsforaccesstotheinsideofacubicle”).

Connect the VT low voltage plug (see chapter “Operatinginstructions”).

Operation


3: remove the 8 screws (C) securing the fan to the box cover (A).

1: remove the 10 screws (A) take off the cover.

2: mark the wires (D) and disconnect them.

Withorwithoutcapacitor

Replacingthefanson3600A/4000Acubicles

Removalmustbeperformedisthepowersupplyoff.


Replacingthecapacitor

Remove the roof on each cubicle (6 screws).

To get access to the capacitors.


Fix the fan and the capacitor (if necessary) in the opposite order to removal.Installingthenewcapacitor

Remove the nut and washer (B).Mark the wiring and disconnect (A).

Removalmustbeperformedisthepowersupplyoff.

Checkonthecharacteristicslabelthatthenewfanandcapacitormatchtheratedvoltage.

- 5 1237 333FA 220 Vac- 5 1237 333FB 110 Vac- 5 1237 333FC 48 VD.


Annexe

Adaptation/instructionsReplacementofthevoltagepresencetypeVPIS1bytypeVPIS2andVPIS2byVPIS2

Note: the subject of this new version of this MCset 17.5 kV User guide is about the annexe “Adaptation/instructions - Replacement of the voltage presence type VPIS 1 by type VPIS 2 and VPIS 2 by VPIS 2”, updated on july 2009.


Caution:you will find all the symbols below throughout the document, indicating the hazard levels depending on the different types of situation.

Symbolsandconventions

DANGERAsperiso3864-2

DANGER: failure to follow this instruction willresultindeath or serious injury.

WARNINGAsperiso3864-2

WARNING: failure to follow this instruction mayresultindeath or serious injury.

CAUTIONAsperiso3864-2

CAUTION: failure to follow this instruction mayresultininjuries.

This alert signal can also be used to indicate practices that coulddamage the RM6 unit.

ContacttheSchneiderElectricserviceunitfordiagnosisandadvice

INFORMATION-ADVICE: we draw your attention to this specific point.

CallyoursalesrepresentativewhowillputyouincontactwiththeclosestSCHNEIDERELECTRICgroupservicecentre.

You can log on to: www.schneider-electric.com




CAUTIONTheaimofthispublicationistoenabletheRM6unittobeinstalledcorrectly.

Distributionrules

SafetyrulesCAUTION

All the operations described belowmust be performed in compliancewith applicable safety standards,undertheresponsibilityofacompetentauthority.

CAUTIONThis document is not a commercialdocument.It is a strictly technical document drawn up by SchneiderElectric.

CAUTIONOnly undertake the work afterhaving read and understoodall the explanations given in thisdocument.If you have any difficultycomplying with these rules,please contact SchneiderElectric.

ThecontractormustbecertifiedandauthorisedtomanipulateandperformworkontheRM6unit.WARNING

Information

VPIS-V1: production until February 2009.

VPIS: Voltage Presence Indicator System, a case with 3 built-in lights.

VPIS-V2: production starting from March 2009.

Characteristics Conforming to IEC61958, relative to voltage presence.

THEINFORMATIONWHICHFOLLOWSCONCERNSTHEINSTALLATIONINSTRUCTION(VOLTAGEPRESENCEINDICATORSYSTEM)

VPIS

PrésentationofVPIS-V1andVPIS-V2

Operatinginstructions

A: voltage presence indicator light (one for each phase)

B: connection point designed for the connection of a phase concordance unit (one for each phase)

WARNING

A: voltage presence indicator light (one for each phase)

B: connection point designed for the connection of a phase concordance unit (one for each phase)

The indication provided by a VPIS-V1 or V2, alone is not sufficient to ensure that the systemis de-energised.

When the ambient lighting is particularly bright, it may be necessary to improve visibility by protecting the indication.



Balancedphase:bThe phase concordance unit light (1) is unlit.

Unbalancedphase:bThe phase concordance unit light (1) is lit.

Phaseconcordanceunit Phase concordance testing forVPIS-V1 and VPIS-V2 must becarried out each time a cable isconnected to a functional unit.

It is a way of making sure that all three cables are each connected to the corresponding phase of the substation.

Principle The principle of the phase concordance unit is that it allows a check of the phaseconcordance between 2 energised functional input units on the same panel.

Reminderofaccessoriesthatcanbeusedforphaseconcordancetesting

Phase concordance unit V1-51191954FA Phase concordance unit V2-VPI62421

Rulesfortheuseofphaseconcordanceunit WARNING

Itisimpossibletocarryoutaphaseconcordanceoftestwith2VPISofdifferenttypes.



Phaseconcordanceunit Functionalunit1 Functionalunit2 Compatibility

result Correctiveactions

V1 V1

OK

V1 V2

OK Replace VPIS-V1 by VPIS-V2Use a phase concordance unit V2

V2 V2

OK Use a phase concordance unit V2

V1 V1

OK Replace VPIS-V1 units by VPIS-V2 units OR test with a phase concordance unit V1

V1 V2

OK Replace VPIS-V1 by VPIS-V2

V2 V2

OK

Rulesforchoosingphaseconcordanceunit

Checkbeforephaseconcordancetest Please refer to the previous chapters in the event of test malfunctioning.

Test Result Action

The 3 indicator lights of each VPIS are on. The 2 functional units are energised, the VPIS units are operating and the check can continue.

The 3 indicator lights of the VPIS are off. The functional unit is not energised or the VPIS is defective.

Apply power to the functional unit.If VPIS-V1 remains unlit, replacedit by a VPIS-V2.

Visual checking of the indicator lights on the VPIS units of functional unit 1 and of functional unit 2

1 or 2 indicator lights unlit. The VPIS is probably defective.Replace by a VPIS-V2.

Phaseconcordanceunitcheckchoice

On each functional unit test phases 1and3.

Functional unit 1 Functional unit 2 You can test.

Youcannottestthem.The choice of the phase concordance unit is wrong or it is not functionning correctly.



Phaseconcordancetest The 3 indicator lights of the 2 VPIS are lit and the phase concordance unit is correct meaning that phase concordance test can be performed.

Functionalunit2

Func

tiona

luni

t1

L1 L2 L3 Conclusionregardingphaseconcordance

L1

Connection is satisfactory.L2

L3

L1

ReversetheMVcablesconnectedtoL1andL2andoneofthefunctionalunits.L2

L3

L1

ReversetheMVcablesconnectedtoL2andL3ononeofthe2functionalunits.L2

L3

L1

ReversetheMVcablesconnectedtoL1andL3ononeofthe2functionalunits.L2

L3

L1

ChangethepositionofeachMVcableononeofthe2functionalunits.L2

L3

L1

ChangethepositionofeachMVcableononeofthe2functionalunits.L2

L3

Phase concordance unit LED lit

LED unlit.

Lexique

or



RemovingtheVPIS1voltagepresenceunit

CAUTION

The screws (A) must be retained.

In case of replacement of a VPIS 1 by a VPIS 2, all the VPIS 1 installedon the unit need to be replaced in order to compare phases.

Instructionstoberespected

Information THEINFORMATIONWHICHFOLLOWS,CONCERNS“THECORRECTIVEMAINTENANCESECTIONS’’(REPLACEOFTHEVOLTAGEPRESENCEUNIT)

Unscrew the 2 self-tapping screws (A). Remove the VPIS1 type voltagepresence unit (B).

Disconnect the VPIS1 voltagepresence unit (B).

ContentsofthekitVPIS2

CAUTION

The screws removed earlier are reused(2 self-tapping screws).

1: indicator unit2:cable gland seals 3:VPIS-V2 safety4:screws (x 4).


MountingthevoltagepresenceunitVPIS2

Position the cable gland seal (2) onthe voltage presence connection (5).

Clip the cable harness connector (5) onto the VPIS V2 safety (3) and fit the seal.

Checkstobemadebeforecontinuingwiththeoperation

Check the condition of the wiring harness (5) and the VPIS 2 rating using the optional diagnostic tool (VPI62420) (not included in the kit) or seecorrespondence table below.

Minimum and maximum operatingvoltage for usage in 50 Hz and 60 Hz.

Key

PreparationofthecableglandsealbeforemountingthevoltagepresenceunitVPIS2

CAUTION

Cut the cable glands in one place ONLY per hole to slide the wires inside.

To integrate the cable gland seal (2) onto the wiring harness, the 4 holes must be cut open using a Stanley knife.

Follow the dotted line to cut the cable gland.


Reference VPI62401/VPI62411

VPI62403/VPI62413

VPI62404/VPI62414

VPI62405/VPI62415

VPI62407/VPI62417

VPI62408/VPI62418

Value 3.5 μA 7.4 μA 10.7 μA 15.5 μA 32.5 μA 47.2 μA

Operatingvoltagerange

Min Max Min Max Min Max Min Max Min Max Min Max

1 kV 1.9 kV 2 kV 3 kV 3.1 kV 5.9 kV 6 kV 8.9 kV 9 kV 17.9 kV 18 kV 25 kV

Values used in Elonet (ADD) for the choice of VPIS.



Pleaserefertothechapterentitled”contentsofthekit”

Screw the indicator unit (1) ontothe VPIS V2 protection (3) using the 4 screws. CAUTION

Tighten the screws to exert slightpressure on the cable gland sealwithout distorting it.

CAUTION

The screws removed earlier are reused.

Install the voltage presence unit inthe correct position using the 2self-tapping screws removed earlier.

CAUTION

The screws must be retained.Remove the 2 screws from the frontpanel.

RemovingtheVPIS2voltagepresenceunit



MountingthenewVPIS2voltagepresenceunit

Remove the unit. Remove the 4 screws from the indicator unit.

Discard the faulty indicator unit.Leave the existing surge arrestorand seal.

CAUTION

Only the indicator unit is to be changed.Contact the SchneiderElectric administration for recycling products at the end of their service life.

Install the new voltage presenceindicator unit.

Screw up the 4 screws.

CAUTION

The screws removed earlier are reused.

Install the voltage presence unit inthe correct position using the 2self-tapping screws removed earlier.

CAUTION

Tighten the screws to exert slightpressure on the cable gland sealwithout distorting it.


Index

AAccessing busbars 15Accessing rack-in pins 16Accessing the main contacts 16AD cubicle (General description) 4AD cubicle (Instructions for access to the inside of a cubicle) 11

CCL-GL cubicles 5Closing the earthing switch 27

EEarthing switch control symbols 2Extracting or inserting the mobile part 20

GGlossary 2

IIdentification 9

LLocking with electromagnet (option) 36Locking with key locks (option) 35

MMoving part control symbols 3MV cable tests 18

OOpening the earthing switch 29

PPlugging in the mobile part 25Plugging in VT fuses 31Preventing access using padlocks 33Preventive and corrective maintenance 36

RRacking-in the mobile part 25Racking-out the mobile part 26Racking-in VT fuses 31Racking-out VT fuses 32Read the inscriptions on the front panel 9Recommendations 3Removing and inserting fixed or withdrawable VTs 14Removing front protection cover panels 12Removing the manhole sheet 14Removing the MV compartment separation sheet 13Removing the stop arc sheet in the cable compartment 15Replacement of the voltage presence type VPIS 1 by type VPIS 2 and VPIS 2 by VPIS 2 41Replacement of VT box fuses 37Replacing the fans on 3600 A/ 4000 A cubicles 39Replacing the capacitor 40RHB, RHC cubicles 6

SStandard tightening torques 3

TTT1, TT2 cubicles 5

VVoltage presence on MV cables 18

WWarning for readers 4Withdrawable mobile part 6

07897302EN - REV. 05

SchneiderElectricIndustriesS.A.S35 rue Joseph MonierCS 30323 92506 Rueil Malmaison Cedexwww.schneider-electric.com

954 503 439 RCS NanterreCapital social : 896 313 776 €

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As standards, specifications and designs change from time to time, please ask for confirmation of the information given in this publication. This document has been printed on ecological paper.

Publishing: Schneider Electric Industries SAS.Design: Profil.Printing:

SchneiderElectricgroupservicecentersaretheretoprovide:- engineering and technical assistance,- commissioning,- training,- preventive and corrective maintenance,- adaptation work,- spare parts.

CallyoursalesrepresentativewhowillputyouintouchwithyournearestSchneiderElectricgroupservicecenterordirectlycallthefollowingtelephonenumber:+33(0)476576060GrenobleFrance.

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