FBX Maintenance.pdf

8/10/2019 FBX Maintenance.pdf

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FBXSF6 Gas-insulated switchboards

InstructionsOperation - Maintenancefor India

Secondary Distribution Switchgear


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FBX Contents

iAMTNoT20002 revision: 03

1 Schneider Electric at your service 1. . . . . . . . . . . . . . . . . . .1.1 Particular instructions for operations and interventions 1. . . . . . . . . . . . . . . . . . .

1.2 Protection equipments 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.3 Symbols of information 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.4 Symbols and important safety informations 1. . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.5 Contacts 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 With regards to this User Manual 2. . . . . . . . . . . . . . . . . . . .2.1 Other technical notice to be consulted 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.2 Tools (not supplied) required for the operations described in this user manual 2

3 Functional interlocks 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.1 Functional mechanical interlocks 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2 Interlocks for functions C and T1 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3 Interlocks for function T2 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4 Interlocks for function Sb 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 Operating accessories 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.1 Reminder for Manual Operations 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.2 Operating accessories 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.3 Lockouts using padlocks (Optional) 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5 Use of the C function 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.1 Opening the earthing switch 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.2 Closing the earthing switch 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.3 Closing the load break switch 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.4 Opening the load break switch 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.5 Movements of motorised control mechanisms 6. . . . . . . . . . . . . . . . . . . . . . . . . .

6 Use of the T1 function 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.1 Opening the earthing switch 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .



6.4 Manually opening the load break switch 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


7 Use of the T2 function 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7.1 Opening the earthing switch 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


7.3 Closing the line isolating switch [circuit breaker open] 8. . . . . . . . . . . . . . . . . . . .

7.4 Opening the line isolating switch [circuit breaker open] 8. . . . . . . . . . . . . . . . . . .

7.5 Closing the circuit breaker [Line Isolator closed] 9. . . . . . . . . . . . . . . . . . . . . . . .

7.6 Opening the circuit breaker [Line Isolator closed] 9. . . . . . . . . . . . . . . . . . . . . . .


8 Use of the Sb function 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8.1 Opening the earthing switch 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .



8.4 Opening the load break switch 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


9 Using motorised functions 11. . . . . . . . . . . . . . . . . . . . . . . . . .9.1 Movements of motorised control mechanisms [Optional] 11. . . . . . . . . . . . . . . . .

9.2 Manual emergency movements of motorised controls 11. . . . . . . . . . . . . . . . . . . .

9.3 Approximate number of turns for backup manual control levers 11. . . . . . . . . . . .

9.4 Manual interventions involving Functions C, T1 and Sb [Earthing switch open] 11

9.5 Manual interventions involving Function T2 [Earthing switch open] 12. . . . . . . . .

10 Maintenance 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10.1 Levels of maintenance 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10.2 Preventive maintenance 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10.3 Corrective maintenance 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10.4 Replacement of the three fuses 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Replacement of a fuse 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Processing old fuses and packaging 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10.5 Replacement of a voltage indicator unit [E.g.: Type VPIS] 16. . . . . . . . . . . . . . . .

10.6 Periodic frequency for maintenance operations of the VDS boxes 17. . . . . . . . .


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ii AMTNoT20002 revision: 03

11 Spare parts 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11.1 The spare part 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11.2 Identification of materials 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11.3 Storage conditions 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Cable testing 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12.1 Preparation of the function 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12.2 Cable testing with plugin T' piece connectors (busbar energized) 19. . . . . . . . .

12.3 Cable tests: EON specification with plugin 'T' piece connectors[busbar energized] 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12.4 Testing the casing of plugin connectors 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12.5 Cable testing with push on type nontouch proof connectors (cable boot) 21. . .

13 Characteristics and Volumes of SF6 gas 22. . . . . . . . . . . . .13.1 General characteristics 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13.2 Filling pressure 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13.3 Operating thresholds of the pressure gauge contacts 22. . . . . . . . . . . . . . . . . . . .

13.4 FBX functions 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

14 At the end of the equipment's operational life 23. . . . . . . .14.1 Valorization of the equipment 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

14.2 Safety instructions 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

14.3 Dismantling of the equipment service 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

14.4 Distribution and valorization of the materials used for FBX (See 14.1) 24. . . . .

15 Notes 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


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AMTNoT20002 revision: 03 1

Schneider Electric 2012. SchneiderElectric, the Schneider Electric logo and theirfigurative forms are Schneider Electric

registered trademarks. The other brandnames mentioned within this document,whether they be copyright or not, belong totheir respective holders.

Schneider Electric request the carefullyreading of the following instructions in orderto familiarize yourself with the product in thisdocument before trying to install, operation,put into service or conduct the maintenanceon it.

Our products are fully quality controlled andtested at the factory in accordance with thestandards and regulations currently in force.

The correct functioning and lifespan of theproduct depend on respecting the installation,commissioning and exploitation instructionsfound in this manual. Not respecting theseinstructions is likely to invalidate anyguarantee.

Local safety requirements which are inaccordance with these instructions,especially those regarding the safety ofproduct operators and other site workers,must be observed.

Schneider Electric declines any responsibilityfor the following points: the non respect of the recommendations in

this manual which make reference to theinternational regulations in force. the non respect of the instructions by thesuppliers of cables and connectionaccessories during installation and fittingoperations, possible aggressive climatic conditions(humidity, pollution, etc.) acting in theimmediate environment of the materials thatare neither suitably adapted nor protected forthese effects.

1.1 Particular instructions for operations and interventions

This user manual does not list the lockingoutprocedures that must be applied. Theinterventions described are carried out on

deenergized equipment (in the course ofbeing installed) or locked out (nonoperational).

Whilst commissioning and operating theproduct all general safety instructions forelectrical applications (protective gloves,

insulating stool, etc.) must be respected, thisin addition to the standard operatinginstructions.

All operations must be completed oncestarted.

The durations (for completing the operations

mentioned) given in the maintenance tablesare purely an indication and depend ononsite conditions.

1.2 Protection equipments

Only qualified and accredited people canoperate on our products. They must beequipped with all the correct protectiveequipment required for the task beingperformed.

A qualified person is one who has the skillsand knowledge related to the construction,installation and operation of electricalequipment and has received safety training torecognize and avoid the hazards involved.

Except when it is imposed, the wearing of thegloves has been voluntarily limited in thismanual so as to have clear visuals of thehands and operations described.

1.3 Symbols of information

Code for a product recommendedand marketed by Schneider Electric

10Tightening torque valueExample: 21 Nm

Mark corresponding to a key21Nm06

1.4 Symbols and important safety informations

The following special messages may appearthroughout this bulletin or on the equipment towarn of potential hazards or to call attentionto information that clarifies or simplifies aprocedure.

DANGER

DANGER indicates an imminently hazardoussituation which, if not avoided, will result indeath or serious injury.

WARNING

WARNINGindicates a potentially hazardoussituation which, if not avoided, can result indeath or serious injury.

CAUTION

CAUTIONindicates a potentially hazardoussituation which, if not avoided, can result inminor or moderate injury.

NOTICE

NOTICEis used to address practices notrelated to physical injury. The safety alertsymbol shall not be used with this signalword.

1.5 ContactsGroup Schneider Electric service centers arethere for:

Engineering and technical assistance Commissioning

Training

Preventive and corrective maintenance

Spare parts

Adaptation work

Schneider Electric Energy France

35 rue Joseph Monier CS 30323

F92506 RueilMalmaison Cedex

www.schneider-electric.com

1 Schneider Electric at your

service


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3.1 Functional mechanical interlocks

The FBX switchboard is equipped withinternal mechanical interlocks, calledfunctional, intended to avoid any kind ofoperating error.

It is necessary to know these interlocks inorder to operate the switchgear correctly. CAUTION

Function Sb: The disconnection or earthingoperation can only be carried out oncesuitably adapted lockout operations havebeen implemented on the network.

3.2 Interlocks for functions C and T1

Position Load Break Switch Earthing switch Access hatch to fuse electrodesor cables

Load Break Switch Closed

Open

Locked open

Free

Locked closed

Dependant on the position ofthe earthing switch

Earthing switch Closed

Open

Locked open

Free

Free

Locked closed

Access hatch to fuseelectrodes or cables

Open Locked open Locked closed

3.3 Interlocks for function T2

Position Circuit breaker Disconnector switch Earthing switch Access cover to cablecompartment

Circuit breaker Closed Locked(closed or open)

Locked open Locked closed

Open Free Dependant on theposition of the

disconnector switch

Dependant on theposition of the earthing

switch

Disconnector switch Closed Free Locked open Locked closed

Open Free(Normally Open)

Free Dependant on theposition of the earthing

switch

Earthing switch Closed Free(Normally Open)

Locked open Free


Dependant on theposition of the circuit

breaker

Locked closed

Access panel to thecable compartment


Lockedopen

LockedClosed

3.4 Interlocks for function Sb

Position Disconnector switch Earthing switch

Disconnector switch Closed Locked open

Open Free

Earthing switch Closed Locked open

Open Free

3 Functional interlocks


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4 AMTNoT20002 revision: 03

4.1 Reminder for Manual Operations

The operating manoeuvres are made withoutany special effort. Nevertheless, the forcerequired is greater for latching controls (T1 &T2) than for tumbler switches (C).

All movements of the lever must be frank andcomplete.

The lever moves through approximately 95.

4.2 Operating accessories

Standard operating lever.

Operating handle end with

reduced diameter forEarthing switch operation

Operating handle end with

normal diameter for Loadbreak switch operation

Fuse electrode compartment key.

Emergency manual control lever formotorised mechanisms.

4.3 Lockouts using padlocks (Optional)

Optional: Each mechanical control hub canbe fitted so as to allow it to be locked outusing a padlock (not supplied).

4 Operating accessories


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5.1 Opening the earthing switch

Check that the tag is fully lowered.

Insert the appropriate lever (smallerdiameter) into the earthing switch socket.

Grasp the lever with both hands. Lift the lever: the earthing switch is nowin the open position.

Remove the lever.

5.2 Closing the earthing switch

NOTICE

Before closing the earthing switch, ensurethere is no voltage across the indicator units(see corresponding manual 2.1).

Check that the tag is fully lowered.

Hold the locking tab open to the right. Insert the appropriate lever (smaller

diameter) into the earthing switch socket.

Grasp the lever with both hands. Pull the lever down: the earthing switchis closed.

Remove the lever.

5 Use of the C function


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5.3 Closing the load break switch

Insert the appropriate lever into theloadbreak switch socket.

Grasp the lever with both hands. Lift the lever: The switch is now closed.

Remove the lever.

5.4 Opening the load break switch

Insert the appropriate lever into theloadbreak switch socket.

Grasp the lever with both hands. Pull the lever down: The switch is nowopen.

Remove the lever.

5.5 Movements of motorised control mechanisms

See chapter 9.


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See instructions in 5.1.


See instructions in 5.2.

7.3 Closing the line isolating switch [circuit breaker open]

Lift the locking tab.

Insert the appropriate lever into thedisconnector switch socket.

Grasp the lever with both hands. Lift the lever: The line isolator is nowclosed.

Remove the lever.

7.4 Opening the line isolating switch [circuit breaker open]

Lift the locking tab.

Insert the appropriate lever into thedisconnector switch socket.

Grasp the lever with both hands. Pull the lever down: The line isolator isnow open.

Remove the lever.

7 Use of the T2 function


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7.5 Closing the circuit breaker [Line Isolator closed]

Insert the appropriate lever into thecircuit breaker socket.

Grasp the lever with both hands.

Lower the lever to its lowest position andrelease slowly (to ensure that theholdopen latch is engaged): The switch

is now held permanently open.

Lift the lever fully: The circuit breaker isnow closed.

Remove the lever.

7.6 Opening the circuit breaker [Line Isolator closed]

NB: The switch can also be opened using apushbutton (optional) or an electrical control.

Insert the appropriate lever into thecircuit breaker socket.

Grasp the lever with both hands. Lower the lever through approximately20: The circuit breaker is now open.

Remove the lever.


See chapter 9.


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Follow the instructions given in 5.1.


CAUTION

The disconnection or earthing operation canonly be carried out once suitably adaptedlockout operations have been implementedon the network.

NOTICE

Before closing the earthing switch, ensurethere is no voltage (or current) across thecircuit in question (see correspondingmanual 2.1).


8.3 Closing the load break switch


8.4 Opening the load break switch



Se reporter au chapitre 9.

8 Use of the Sb function


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9.1 Movements of motorised control mechanisms [Optional]

If the FBX switchboard is fitted with motorisedcontrols (optional), the various functions canbe energised/deenergised remotely inaccordance with the circuit diagram suppliedas part of the contract.

For functions T1 and T2, opening operationscan also be triggered by a pushbutton(optional) or electrical controls.

CAUTION

Function Sb: The disconnection or earthingoperation can only be carried out oncesuitably adapted lockout operations havebeen implemented on the network.

9.2 Manual emergency movements of motorised controls

In the event of an outage of the motor supplysource, a backup control can be used tocomplete a manoeuvre underway or to carryout manual manoeuvres.

The position of the indicators should beverified after each operation.

If the supply is reestablished whilst thehandle is inserted, it will be pushed out of thesocket.

NOTICE

When the earthing switch is closed thebackup manual control lever cannot be fitted(Except for T2).

9.3 Approximate number of turns for backup manual control levers

Switch Disconnector Circuit breaker

To Open To Close To Open To Close

Functions Cand Sb (See 8)

31 turns 31 turns

Function T1 7 turns 50 turns

Function T2 31 turns 31 turns 7 turns 50 turns

9.4 Manual interventions involving Functions C, T1 and Sb [Earthing switch open]

Insert the backup handle for the switchinto its hole.

To open (or close) the loadbreak switch,turn clockwise (See 9.3).

Continue until the operation is completed(mimic diagram changes).

Remove the crank handle.

9 Using motorised functions


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9.5 Manual interventions involving Function T2 [Earthing switch open]

Insert the backup handle for the switchinto its hole.

To open (or close) the loadbreak switch,turn clockwise (See 9.3).

Continue until the operation is completed(mimic diagram changes).

Remove the crank handle.


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10.1 Levels of maintenance

D e s c r i p t i o n Levels

Operations recommended in the instructions manual installation operation maintenance, carried out by suitably qualifiedpersonnal having received training allowing them to intervene whilst respecting the safety rules.

1

Complex operations, requiring specific expertise and the implementation of support equipment in accordance with SchneiderElectric's procedures. These must be carried out by Schneider Electric or by a specialised technician trained by SchneiderElectric when starting the procedures, with the appropriate specific equipment.

2

All preventive and corrective maintenance, all renovation and reconstruction work is carried out by Schneider Electric. 3

10.2 Preventive maintenance

P R E V E N T I V E M A I N T E N A N C E Frequency Levels

Recommended operations 1 year 1 2 3

Verification of the presence and condition of accessories (levers, etc.) X X X X

Visual inspection of the exterior (cleanliness, absence of oxidation, etc.) X X X X

Cleaning of external elements, with a clean, dry cloth. X X X X

Verification of the positioning of the status indicators (open and closed) X X X X

Verification of the functioning of the mechanical control mechanism by making several manoeuvres X X X X

Visual surveillance of the general appearance of connections X X X X

10.3 Corrective maintenance

C O R R E C T I V E M A I N T E N A N C E Levels

Replacements or modifications See 1 2 3

Replacement of the three fuses 10.4 X X X

Replacement of a voltage indicator unit [E.g.: Type VPIS] 10.5 X X X

10.4 Replacement of the three fuses

Intervention Busbar Cables Load Break Switch Earthing switch

Normal deenergized deenergized open closed

Possible energized deenergized open closed

Locking out the Functional UnitAll lockingout operations must be performedaccording to the particular rules for the net-work concerned.

Tools required: Leather gloves Compartment key Small, flatheaded screwdriver

Parts required: 3 fuses with the same reference(verify values in accordance with the transfor-mer power)

NOTICESee the corresponding chapter in theInstallation Manual for the characteristics ofthe fuses (See 2.1).

Replacement of a fuse

CAUTION

For an apparently single phase fault, it isimperativethat all 3 fuses be replaced.

CAUTION

The body of a fuse can become very hotfollowing a short circuit. Take standard

precautions (leather gloves) before startingwork.

CAUTION

Whenever changing or fitting a fuse, close thecompartment immediately afterwards to avoid

letting dust and humidity enter.

10Maintenance


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Ensure that the function's earthing switchis closed.

Open the compartment using the

corresponding key.

Lift the latch and open the panel. The end plugs on the fuse holders arenow accessible.

Use clean leather gloves.

Pull the fuse and plug towards youwithout twisting. Slowly remove the plug/fuse assembly.

Caution! this may be hot. Place the assembly on a clean, flat

surface.

CAUTION Unscrew the fixing screw.

Remove the blown fuse from the plug.

For fuses of up to 12kV, recover the adapterplugged onto the back of the fuse.

NOTICE

Fit the replacement fuse: Label and emboss the plug side, Label opposite the fuse holder.

Label

Pallet

Insert the fuse into the clamps as far aspossible, against the supporting ring.

Place the assembly on a flat surface tomake it easier to tighten the clamp collarscrew to the required torque.

2Nm


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For fuses of up to 12 kV: Fit an adapteronto the other end of the fuse.

Make sure the fitted assembly (plug andfuse) is clean.

1. Slide this assembly into the fuseholders, aligning the lug on the plug withthe slot in the holder.

Do not twist the assembly when inserting.

1

CAUTION

2. The lug on the plug must click into theslot in the fuse holder.

2

3. Push the plug, by the two tabsprovided, up to the stop.

Now fit the other two fuses.

3

3

To reclose the fuse cover: Lift the latch, Lift the cover and push back into place,

Lock the cover (using the key).

Processing old fuses and packaging

NOTICEFuses and packaging must be disposed ofvia General Industrial Waste channels.


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10.5 Replacement of a voltage indicator unit [E.g.: Type VPIS]

Intervention Busbar Cables Load Break Switch Earthing switch

Normal deenergized deenergized open closedPossible energized energized closed open

Locking out the Functional UnitAll lockingout operations must be performedaccording to the particular rules for the net-work concerned.

Tools required: Flat headed screwdriver

Parts required:VPIS Indicator Unit

Live Line Indicator (VD1) Unit. Unscrew the LV compartment screws. Pull the LV compartment Lid.

Status after pulling. Disconnect the VD1 Unit. Push the side locks to extract the Live

Line Indicator.

Status after pulling. To fit a new unit, repeat the operation inreverse order.


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11.1 The spare part

Describes a part that is designed to replace acorresponding one with a view toreestablishing the original function.

NOTICE

The replacement of these parts can only becarried out by a person who is suitablyqualified and trained for this operation.

NOTICE

For an explanation of the levels ofmaintenance, please refer to 10.1.

Programmed replacement DenominationReplacement Levels

every 1 2 3

This concerns wearing parts, designed to be replacedafter a predetermined number of uses.

Use: Maintenance stock, necessary for optimummaintenance procedures every 6 years.

HV fuses (by 3) 20 years X X X

Non-Programmed replacement DenominationLevels

1 2 3

Describes spare parts whose replacement intervenes inthe course of corrective maintenance.

Illuminated Indicators X X X

Exceptional replacement DenominationLevels

1 2 3

Describes the spare parts or assemblies whoseforeseeable service life is at least equal to that of the

equipment.Use: Spare parts or subassemblies conserved in asafety stock.

Cable strapping X X X

Manometer X X X

Motor X X X

Auxiliary contacts X X X

Operating lever for the earthing switch X X X

Load break switch operating lever X X X

Emergency manual control lever for motorised mechanisms X X X

Fuse electrode compartment key X X X

Mechanical control X X X

11.2 Identification of materials

NOTICE

For all orders for spare parts, it is necessaryto enclose the equipment characteristicsform.

11.3 Storage conditions

The components should be stored away fromdust, humidity or the sun. In order to facilitatethe search, they must be marked by theSchneider Electric reference number.

Certain components are fragile, they shouldpreferably be stored in their originalpackaging.

11 Spare parts


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12.1 Preparation of the function

NOTICEImplement lockout rules in accordance withthe regulations specific to each network.

Deenergize the loadbreak switch and closethe earthing switch (See correspondingchapter).

Remove the cable compartment accesspanel.

12.2 Cable testing with plug-in `T' piece connectors (busbar energized)

1. Remove the end panel cover.

2. Fit the test adapter.

1

2

CAUTION

WARNING

DANGER

Simulate the presence of the door.

3. Push the lock downwards: Theearthing switch is now unlocked.

In this position, the switch can be moved,unless the switchboard is fitted with anadditional interlock between the cable paneland the load break switch (optional).

3

4. Lower the locking tab.

Open the earthing switch (See 5.1).

Procede with the tests.

4

CAUTION

CAUTION

Close the earthing switch (See 5.2).

5. Pull the lock upwards.

5

CAUTION 6. Raise the unlocking latch by hand.

6

CAUTION Remove the adapters.

Screw the covers onto each extremity.

Refit the cable compartment panel.

12Cable testing


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12.3 Cable tests: EON specification with plug-in 'T' piece connectors [busbarenergized]

1. Remove the end panel cover.

2. Fit the test adapter.

1

2

3. Lower the unlocking latch by hand.

4

Open the earthing switch.

Procede with the tests.

Close the earthing switch. 6. Raise the unlocking latch by hand.

6

Remove the adapters.

Screw the covers onto each extremity.

Refit the cable compartment panel.

12.4 Testing the casing of plug-in connectors

Consult the supplier of the plugin connectors

for all information and figures relating to sucha test. To carry out this test:

. Shut down the function.

. Close the earthing switch.

. Disconnect the earthing braid.

Current injection is via the braid.

After the test, reconnect the earthing

braid to the general earthing circuit.


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12.5 Cable testing with push on type non-touch proof connectors (cable boot)

1

2

3

5

CABLE

CABLE BOOT

BUSHING

Note: This system is suitablefor system voltage upto 11kV

1.Remove the end cover of the cable

boot. 2.Insert the M6 cable test plug on the

M16 Bushing stud.

3.Connect the test wire to the cable testplug using nuts.

4.Unlock the earth switch as explainedin 12.2step3, 4, 5.

5.Apply test voltage at this point.

6.To return to service:

close the earthing switch, lift the latch, refit the panel.


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13.1 General characteristics

Type of Insulating Gas:Sulphur Hexafluoride (SF6) iaw IEC60376.

Each switchboard comprises a tank, filledwith SF6 gas, designed as a pressurised,sealedunit system in accordance with therequirements of IEC622711.

During the expected operating life and undernormal operating conditions the gas shouldnot need topping up.

DANGER

Never pierce the pressurised tank!

DANGER

Never attempt to open the tank.

13.2 Filling pressure

At 20C the filling pressure is 0.030 MPa(0.13 MPa absolute).

A pressure gauge (on option) enablesthe SF6 gas pressure to be ensured,depending on the temperature

(5 curves).

The 2 black lines (on the left),correspond to an internal pressure equalto the atmospheric pressure

(0.1 MPa absolute).

Specific manometer (optional) foraltitudes higher than 1000 m.

13.3 Operating thresholds of the pressure gauge contacts

Thresholds Temperature Pressure

High 20C 250 + 30 mbar

Low 20C 140 + 50 mbar

13.4 FBX functions

The loadbreak switches can only bemanoeuvred whilst the needle is in the greensector (to the right) corresponding to ambienttemperatures.

In case of an anomaly observed (needle inthe red, for example), please contact yournearest Schneider Electric representative.

13 Characteristics and Volumes of

SF6 gas


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14.1 Valorization of the equipment

Our Functional Units are composed ofrecyclable elements.

The tables ( 14.4) give information andfigures for the types of materials, their qualityand their methods of valorization.

They enable the following: Calculation to be made of the capacities forvalorization, Optimising the valorization process, Evaluating the cost of valorization.

The indications given in tables ( 14.4)facilitate cooperation between users andSchneider Electric to valorize the product atthe end of the product's service life.

*

**

1

2

3

FBX-C (IS) C-C-T1 (24 kV - 400 A)

14.2 Safety instructions

Do not dismantle the mechanicalcontrol mechanism springs withoutthe releasing device.

Never attempt to open thesealedtank of a Functional Unit.

Don't try to recuperate the SF6,without specific tools and out of alocal dedicated to that operation.

14.3 Dismantling of the equipment service

Consult Schneider Electric for alldecommissioning services.

CAUTION

Recovery the SF6, and opening the tank canbe realized only in a specific room, equipedfor this type of service.

14 At the end of the equipment's

operational life

1 2 3


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15Notes

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 sendus your remarks, suggestions and wishes to:

SCHNEIDER ELECTRIC INFRASTRUCTURE LIMITEDInfrastructure Business

Medium Voltage Building, Milestone 87 Vadodara Halol HighwayKotambi, P.O Jarod, Vadodara391510

Tel: (091) 2668 664040


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Schneider Electric Energy France

35, rue Joseph Monier

CS 30323F 92506 RueilMalmaison Cedex

As standards, specifications and designs change from time to time, please ask forconfirmation of the information given in this publication.

2

012SchneiderElectric

-Allrightsreserved

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FBX Maintenance.pdf