Fluokit M24+SF6 Gas-insulated switchboards

Mechanical interlockingstandards – using padlocksFitting - Operations

Secondary Distribution Switchgear

Fluokit M24+ Contents

iAMTNoT160-02 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 Eco-design concept and valorization of the materials used 2. . . . . . . . . . . . . . .

2.2 Other technical notices to be consulted 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

2.4 Symbols representing the actual position of the keys 2. . . . . . . . . . . . . . . . . . . .

3 General 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.1 Interlocking by locks 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2 Instructions for manoeuvres and operations 3. . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3 Changes or modification to installations 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4 Locations of padlocks on mechanical controls 3. . . . . . . . . . . . . . . . . . . . . . . . . .

3.5 Installation of padlock-type interlocks 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 'Functional' interlocks 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.1 Roles and applications 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.2 Use of Functional Interlocking for PGB 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.3 Use of Functional Interlocking (PGC), with or without operational interlocks 5.

4.4 Use of Functional Interlocking for PGC C13-100, for no-load test of circuit breaker 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5 Operating interlocks 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.1 Roles and applications 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.2 Interlocking the 'loop' between two Functional Units 7. . . . . . . . . . . . . . . . . . . . .

5.3 Use of Loop Interlock between 2 functional units (IS1 & IS2) 7. . . . . . . . . . . . . .

5.4 Use of Loop Interlock between 2 Functional Units (PGC1 & PGC2) 8. . . . . . . .

5.5 Non-return interlock – HV/LV/Trans. 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.6 Use of HV/LV/Trans non-return interlocking on PF or PFA functional units 9. . .

5.7 Use of HV/LV/Trans non-return interlocking on PGC functional units 10. . . . . . .

5.8 Use of lock-type interlocking between ”incoming” and ”coupling” functional units 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.9 Use of padlock-type interlocking between PGB & LST ”incoming” and ”coupling”functional units 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6 Installation of operating interlocks 13. . . . . . . . . . . . . . . . . . .6.1 Ordering lock-type interlocks 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.2 Spare key supply 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.3 Direction of rotation of the locks 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.4 General Installation Precautions 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.5 Levels of maintenance 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.6 Preparation of the Functional Unit 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7 Fitting a lock-type interlock 15. . . . . . . . . . . . . . . . . . . . . . . . .7.1 Interlocking assemblies using locks 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.2 Precautions 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.3 Fitting interlocks to the line break switch [for locations See § 3.4] 15. . . . . . . . . .

Preparation of the locking device (using Ronis locks for example) 15. . . . . . . . .

Fitting interlocks on a mechanical control C410 16. . . . . . . . . . . . . . . . . . . . . . . . .

7.4 Fitting interlocks to the earthing switch [for locations See § 3.4] 17. . . . . . . . . . .

Preparation of the locking device (using Profalux locks for example) 17. . . . . . .

Fitting interlocks on a mechanical control C410 18. . . . . . . . . . . . . . . . . . . . . . . . .

7.5 Dismantling the lock mounts 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8 Notes 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fluokit M24+

AMTNoT160-02 revision: 03 1

© - Schneider Electric - 2013. SchneiderElectric, the Schneider Electric logo and theirfigurative forms are Schneider Electricregistered 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 inthis 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 locking-outprocedures that must be applied. Theinterventions described are carried out onde-energized 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 operationsmentioned) given in the maintenance tablesare purely an indication and depend onon-site 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 key21Nm 06

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.

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

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

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

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

1.5 Contacts

Group 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

F-92506 Rueil-Malmaison Cedex

www.schneider-electric.com

1 Schneider Electric at your

service

Fluokit M24+

2 AMTNoT160-02 revision: 03

2.1 Eco-design concept and valorization of the materials used

The design and life cycle of the equipmentand switchgear manufactured by SchneiderElectric take environmental requirements intoaccount.

The design and manufacture of ourpackaging are both in conformity with theFrench government decree N° 98-638 of 20 July 1998, concerning the account that istaken of environmental requirements.

2.2 Other technical notices to be consulted

� AMTNoT017 BLR-BLRM Mechanical controls Operation - Maintenance� AMTNoT090 FLUOKIT M24+ Installation - Commissioning - Operation - Maintenance� AMTNoT100 C410-C410M Mechanical controls Operation - Maintenance� AMTNoT101 C430-C430M Mechanical controls Operation - Maintenance� AMTNoT102 C440-C440M Mechanical controls Operation - Maintenance� AMTNoT191 FLUOKIT M24+ No-load test procedure of a circuit breaker for PGC (EDF C13-100)

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

- Spanners: 16, 26 mm

- Ratchet spanner with sockets of 26mm

- Torque wrench with sockets of 26mm

- Flat headed screwdriver

- 1 Allen key for hexagonal screws size 3

2.4 Symbols representing the actual position of the keys

� Key free – fitted. � Key absent. � Key captive.

2 With regards to this User Manual

Fluokit M24+

AMTNoT160-02 revision: 03 3

3.1 Interlocking by locks

Interlocking, using padlocks, is a necessaryrequirement to:Guarantee certain operational functions,- slave the switchboard to an earthing switchor line isolator,- block access.

This manual deals with the two types ofpadlock-type locking:- locking a function,Operational interlocking

3.2 Instructions for manoeuvres and operations

The information given in this manual isrequired for the production of equipmentoperation and manipulation requirements.

These procedures are specific to eachindividual installation and are produced by thecustomer.

The manipulation and operationsrequirements must be displayed on thefunctional units concerned.

3.3 Changes or modification to installations

CAUTIONAny changes or modifications to theinstallations must trigger an update of thepadlock interlock orders.

WARNINGNEVER MODIFY OR REMOVE AFUNCTIONAL INTERLOCK

NOTICEA general interlock plan must be drawn upand updated as and when the installation ischanged.

3.4 Locations of padlocks on mechanical controls

4

3

24

31

1

C410 C430

0 Key

- 1 Padlock - Load break switch ”Open”

- 2 Padlock - Load break switch ”Closed”

- 3 Padlock - Earthing switch “Open”

- 4 Padlock - Earthing switch “Closed”

4

3

1

C440

3.5 Installation of padlock-type interlocks

The installation of padlock-type interlocksrequires:- Purchase of the components and elementsrequired,- The use of suitable tools,(See § 2.3)- Fitting instructions (see Chapters 6 and 7).

3 General

Fluokit M24+

4 AMTNoT160-02 revision: 03

4.1 Roles and applications

The interlocking of functions using key-lockscontrol the lockout sequences for switchgearassociated with a line break or earthingswitch.

For the Fluokit M24+, this interlocking systemis applicable to those functional units fittedwith a circuit breaker (PGB & PGC).

4.2 Use of Functional Interlocking for PGB

Commissioning De-energizing No-load testing on the CB

� Unlock the double-insulation disconnectorusing Key A3.

� Close the double-insulation disconnector.

� Unlock the double-insulation disconnectorusing Key A3.

� Recover Key A3.� Introduce A3 into the CB lock and unlock

immediately.� Re-arm and engage the CB.

� Trip the CB using the operating button.� Hold the button in its 'tripped' position.� Lock the CB with Key A3.

� Recover Key A3.� Introduce A3 into the Double-Insulation

disconnector lock and unlock immediately.� Open the double-insulation disconnector.� Close the earthing switch.

� Proceed with the de-energising operation.� Lock the double-insulation disconnector

using Key A3.

� Recover Key A3.� Introduce A3 into the CB lock and unlock

immediately.� It is now possible to re-arm, close, then

trip the CB.

A3

A3

4 'Functional' interlocks

Fluokit M24+

AMTNoT160-02 revision: 03 5

4.3 Use of Functional Interlocking (PGC), with or without operational interlocks

Commissioning De-energizing No-load testing on the CB

� Close the line break switch.� Lock the line break switch with Key A1.� Recover Key A1.

� Introduce A1 into the CB lock and unlockimmediately.

� Re-arm and engage the CB.

� Trip the CB using the operating button.� Hold the button in its 'tripped' position.� Lock the CB with Key A1.

� Recover Key A1.� Introduce A1 into the line break switch

lock and unlock immediately.� Open the line break switch.� Close the first earthing switch (ST1).� Close the second earthing switch (ST2).

� Proceed with the de-energising operation.� Lock the line break switch with Key A1.� Recover Key A1.

� Introduce Key A1 into the CB lock andunlock immediately.

� It is now possible to re-arm, close, and tripthe CB.

A1

ST1

ST2

Case 1: Without operational interlocking

Case 2:With operational interlocking

12

A1

ST1

ST2

A1 A1

Fluokit M24+

6 AMTNoT160-02 revision: 03

4.4 Use of Functional Interlocking for PGC C13-100, for no-load test of circuitbreaker

AVISThis no-load test procedure of a circuitbreaker for PGC (EDF C13-100) is detailledin AMTNoT191 manual.

De-energizing Preparation of test No-load testing on the CB

� Trip the CB using the operating button.� Hold the button in its 'tripped' position.� Lock the CB with Key A.

� Recover Key A.� Introduce A into the line break switch lock

and unlock immediately.� Open the line break switch.� Close the first earthing switch (ST1).� Close the second earthing switch (ST2).

� Lock the line break switch with Key B.� Recover Key B.� Introduce Key B into the lock of the device

of locking in configuration of no-load testof the circuit breaker and unlockimmediately.

� Remove the door panel.� By means of a big screwdriver, make the

pin revolve towards the right.� Lock the pin with Key A.

� Recover this key.� Open the first earthing switch (ST2).� Open the second earthing switch (ST1).

� Introduce Key A into the CB lock andunlock immediately.

� Proceed to tests and regulations of

circuit breaker

A

ST1

ST2

AB

B A

AB

Device of locking inconfiguration of no-loadtest of the circuit breaker

Fluokit M24+

AMTNoT160-02 revision: 03 7

5.1 Roles and applications

Operational interlocks are used to control thesequences of operational manipulations andlockout operations under normal operatingand safety conditions.

5.2 Interlocking the 'loop' between two Functional Units

Link the closure of the earthing switch on afunctional unit to the opening of adisconnector or line break switch on asecond functional unit.

Applicable to IS (See §5.3) and PGC (See §5.4) Functional Units.

5.3 Use of Loop Interlock between 2 functional units (IS1 & IS2)

Commissioning De-energizing

� The earthing switches are locked 'open'using keys 1 & 2.

� Keys 1 and 2 should be present in the

locks of `opened' line break switches.� Unlock then close the switches.

� Open line break switch IS2 and lock withkey 2.

� Recover Key 2.

� Goto IS1.� Open line break switch and lock with

key 1.� Recover Key 1.� Introduce Key 2 into the earthing switch

lock and unlock immediately.� Verify that there is no voltage across the

voltage indicator units.

� Close the earthing switch.� Return to IS2.� Introduce Key 1 into the earthing

switch lock and unlockimmediately.

� Verify that there is no voltageacross the voltage indicator units.

� Close the earthing switch.

Functional Unit – IS1

1

12

2

Functional Unit - IS2

IS1 IS2

5 Operating interlocks

Fluokit M24+

8 AMTNoT160-02 revision: 03

5.4 Use of Loop Interlock between 2 Functional Units (PGC1 & PGC2)

Commissioning De-energizing

� The line break switches are unlocked asKeys 1 & 2 are present.

� Close the line break switches.

� Lock the line break switches using keysA1 and A2.

� Recover Keys A1 & A2 and introducethem into the locks for the circuit breakers,unlocking immediately.

� Re-arm and engage each CB.

� PGC1: Trip the CB using the operatingbutton.

� Hold this button in the `tripped' position

and lock with Key A1.� Recover Key A1, introduce it into the line

break switch lock and unlock immediately.� Open line break switch and lock with

key 1.� Recover Key 1.� Goto PGC2: Trip the CB using the

operating button.� Hold this button in the `tripped' position

and lock with Key A2.� Recover Key A2, introduce it into the line

break switch lock and unlock immediately.� Open line break switch and lock with

key 2.

� Recover Key 2.� Introduce Key 1 into the earthing

switch lock (ST1) and unlock

immediately.� Verify that there is no voltage

across the voltage indicator units.� Close ST1 then ST2� Goto PGC1: Introduce Key 2 into

the earthing switch lock (ST1) andunlock immediately.

� Verify that there is no voltageacross the voltage indicator units.

� Close ST1 then ST2

No load test (no voltage)� Recover Key A1 and A2 from the

line break switch (open) for theCB no-load tests.

PGC1 FU PGC2 FU

1

A1

2

A2

ST1

ST2

2 1

ST1

ST2

A1 A2

Fluokit M24+

AMTNoT160-02 revision: 03 9

5.5 Non-return interlock – HV/LV/Trans.

Blocks access to the interior of the functionalunit and transformer whilst the FU and LV CBare operational (closed).

Applicable to PF/PFA (See § 5.6)and PGC (See § 5.7) Functional Units.

5.6 Use of HV/LV/Trans non-return interlocking on PF or PFA functional units

Commissioning De-energizing

� Lock earthing switch open using Key 1.� Goto the low voltage switchboard,

introduce Key 1 into the CB lock and

unlock immediately.� Plug in then close the LV CB.� Return to the FU.� Close the line break switch on the PF (or

PFA) FU.

� Open the line break switch on the FU.� Goto the LV switchboard, open and unplug

the main CB.

� Lock this CB in its `withdrawn' positionusing Key 1.

� Recover Key 1 and return to the PF (orPFA) FU.

� Introduce Key 1 into the earthing switchlock and unlock immediately.

� Verify that there is no voltage across the

voltage indicator units.� Close the earthing switch.� Lock earthing switch using Key 2.

� Goto transformer.� 1st case: isolated transformer

- unlock transformer access (or

withdrawable terminals) using Key2.

� 2nd case: transformer (inmetallic covering)> 2000kVA or with externalwithdrawable terminals:- introduce Key 2 into transfer

lock,- recover Key 3 to accesstransformer.- recover Key 4 to accesstransformer or withdrawableterminals.

2

4

1

1

Transformer (with covering) > 2000kVA

or with external withdrawable terminals

Low Voltage

PF or PFA Functional Unit

2

1

Isolated Transformer

Low Voltage

or

2 3 4 3

Fluokit M24+

10 AMTNoT160-02 revision: 03

5.7 Use of HV/LV/Trans non-return interlocking on PGC functional units

Commissioning De-energizing

� Earthing Switch ST1 is already locked`open' with Key 1.

� Recover Key 1.

� Goto the low voltage CB, introduce Key 1into the CB lock and unlock immediately.

� Plug in then close the LV CB.� Return to the FU.� Close the line break switch.� Recover Key A1.� Introduce A1 into the CB lock and unlock

immediately.� Re-arm and engage the CB.

� Trip the CB using the operating button.� Hold the button in its 'tripped' position.� Lock the CB with Key A1.

� Recover Key A1.� Introduce A1 into the line break switch

lock and unlock immediately.� Open the line break switch.� Goto the LV switchboard, open and unplug

the main CB.� Lock this CB in its `withdrawn' position

using Key 1.� Recover Key 1 and return to the PGC FU.� Introduce Key 1 into the earthing switch

lock (ST1) and unlock immediately.� Verify that there is no voltage across the

voltage indicator units.� Close the earthing switch (ST1).� Close the earthing switch (ST2).

� Lock earthing switch ST2 using Key 2.

� Goto the transformer.� 1st case: isolated transformer

- unlock transformer access (or

withdrawable terminals) using Key2.

� 2nd case: transformer (inmetallic covering)> 2000kVA or with externalwithdrawable terminals:- introduce Key 2 into transfer

lock,- recover Key 3 to accesstransformer.- recover Key 4 to accesstransformer or withdrawableterminals.

No load test (no voltage)� Recover Key A1 from the line

break switch (open) for the CBno-load tests.

PGC Functional Unit

1

A1

2

ST1

ST2

A1

4

1

Transformer (with covering) > 2000kVAor with external withdrawable terminals

Low Voltage

2

1

Isolated Transformer

Low Voltage

or

2 3 4 3

Fluokit M24+

AMTNoT160-02 revision: 03 11

5.8 Use of lock-type interlocking between ”incoming” and ”coupling” functionalunits

This interlock is used for switchboards withtwo incomings, separated by a coupling.

Its aim is to stop the FUs being connected inparallel.

This is assured by a system of three lockswith two keys.

Commissioning the two Incomings (PGC1 & PGC2)

Commissioning PGC1 with Coupling PGB

Commissioning PGC2 with Coupling PGB

� The line break switches are alreadyunlocked as Keys G are present.

� Close the line break switches on PGC1

& 2.� Lock the line break switches using keys

A1 and A2.� Recover Keys A1 and A2.� Introduce A1 into the CB lock on PGC1

and unlock immediately.� Re-arm and engage the CB.

� Introduce A2 into the CB lock on PGC2and unlock immediately.

� Re-arm and engage the CB.

� Trip the CB on PGC2 using the operatingbutton.

� Hold the button in its 'tripped' position.

� Lock the CB with Key A2.� Recover Key A2, introduce it into the line

break switch lock and unlock immediately.� Open line break switch and lock with

key G.� Recover Key G, introduce it into the line

break switch lock (Lock G) on PGB and

unlock immediately.� Close PGB line break switch and lock with

key A3.� Recover Key A3.� Introduce A3 into the CB lock on PGB and

unlock immediately.� Re-arm and engage the CB.

� Trip the CB on PGC1 using the operatingbutton.

� Hold the button in its 'tripped' position.

� Lock the CB with Key A1.� Recover Key A1, introduce it into the line

break switch lock and unlock immediately.� Open line break switch and lock with

key G.� Recover Key G, introduce it into the line

break switch lock (Lock G) on PGB and

unlock immediately.� Close PGB earthing switch and lock with

key A3.� Recover Key A3.� Introduce A3 into the CB lock on PGB and

unlock immediately.� Re-arm and engage the CB.

PGC1 Functional Unit PGC2 Functional UnitPGB Functional Unit

A3

G

A1

ST1

ST2

A2

G G

ST1

ST2

A1 A3 A2

Fluokit M24+

12 AMTNoT160-02 revision: 03

5.9 Use of padlock-type interlocking between PGB & LST ”incoming” and”coupling” functional units

Commissioning De-energising the PGB De-energising the LST (EarthingSwitch)

� The double-insulation disconnector isunlocked as Key A4 is present.

� Close the double-insulation

disconnector.� Lock the double-insulation

disconnector using Key A3.� Recover Key A3.� Introduce A3 into the CB lock and

unlock immediately.� Re-arm and engage the CB.

� Trip the CB using the operatingbutton.

� Hold the button in its 'tripped' position.

� Lock the CB with Key A3.� Recover Key A3.� Introduce A3 into the

Double-Insulation disconnector lockand unlock immediately.

� Open the double-insulationdisconnector.

� Close the earthing switch.

� PGB: Lock the double-insulation disconnectorusing Key A4.

� Recover A4 and introduce it into the transfer

lock.� Goto:

either the LV switchboard - to open and unplugthe main CB.- or, the Generator Unit (GE) to cut off theexcitation function.

� Lock either the CB in its withdrawn position or

the excitation function using Key A5.� Recover A5 and introduce it into the transfer

lock.� Free and recover Key A6.� LST (Earthing Switch): Introduce Key A6 into

the earthing switch lock and unlockimmediately.

� Close the earthing switch.

� Lock the earthing switch with key A7 to unlocktransformer access (or access to thepluggable terminals).

A7 A6

A7

A5

A6A5A4

GE

A5

A3

A4 A3

Transformer

Low Voltage

Or Generator Unit

LST Functional UnitPGB Functional Unit

Fluokit M24+

AMTNoT160-02 revision: 03 13

6.1 Ordering lock-type interlocks

NOTICEFor all interlock orders, it is necessary toenclose the material characteristics datasheet.

Clearly identify the mechanical control typebefore ordering the interlock kit.

Stating:- The type of lock chosen (Ronis or Profalux),- The type of interlock.

6.2 Spare key supply

On request, Schneider Electric maysometimes supply spare keys to locks. CAUTION

The spare keys must be kept in a dedicated,closed, key safe (not supplied).

6.3 Direction of rotation of the locks

� Representative of a ¼ turn left to leavethe key captive.

� Representative of a ¼ turn right to leavethe key captive.

6.4 General Installation Precautions

NOTICEAll operations for installing the lockingdevices shall be carried out with themechanical control mechanism in place.There is no need to dismantle it from theFunctional Unit.

NOTICEPrior to fitting the locks, mark the directionand location on the plate.

CAUTIONRespect the tightening Torques. DO NOT OVER TIGHTEN!

6.5 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 qualified per­sonnel 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 Schneider Elec­tric's procedures. These are carried out by Schneider Electric or by a specialised technician, trained by Schneider Electric in theimplementation of procedures, and who is equipped with specific equipment.

2

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

6 Installation of operating

interlocks

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6.6 Preparation of the Functional Unit

Intervention Duration Busbar Cables Load Break Switch Earthing switch

Normal 1 h de-energized de-energized open closed

Possible 1 h energized energized open open

Locking out the Functional UnitAll locking-out operations must be performedaccording to the particular rules for the net­work concerned.

Tools required:- 1 Flat headed screwdriver

If wiring is present:- Open the LV box with the key.- De-energize the LV auxiliaries power sup­plies.- Disconnect all of the wiresconnected to the mechanism.

NOTICEFor all interlocking installation operations, it isnecessary to remove the cover from themechanical control mechanism.

� Unscrew the 2 fixing screws on thevoltage indicator box.

� Disconnect the box. � Unscrew the three fixing screws on thecover (flat-head screwdriver).

� Remove the cover.

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7.1 Interlocking assemblies using locks

For the definition of the various levels, pleaserefer to § 6.5.

F I T T I N G O F L O C K S Levels

Functions See chapter 1 2 3

Fitting the lock with load break switch 7.3 - X X

Fitting the lock on the earthing switch 7.4 - X X

7.2 Precautions

For fitting the locks, it is necessary to mark theirdirection and location on the plate in accordancewith § 3.4.

Interlocks ¼ turn left ¼ turn right

Load Break Switch Open Closed

Earthing switch Closed Open

7.3 Fitting interlocks to the line break switch [for locations See § 3.4]

NOTICEUse tools listed in § 2.3.

Preparation of the locking device (using Ronis locks for example)

NOTICEThe fitting of the locks is the same,regardless of its role or use.

� Complete interlock kit for Ronis andProfalux.NB: The small nut, fitted to the end of the

barrel of the lock, should not be used.

� Take hold of the barrel and engage thering.

� Position the white spacer.

7 Fitting a lock-type interlock

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� Position the lock in its mounting hole.

Front view

� Turn the mounting.� Tighten slowly the nut from the rear (26

spanner).

Rear view

3.5Nm

� Position the cam in the direction marked.

Rear view

� Fitting 2 locks: the cams must bepositioned as shown.

Top view

� Position of the cams.

Rear view

� Place the keys in a flat position forinstallation on the mechanical controlmechanism.

Rear view

Fitting interlocks on a mechanical control C410

� Present the complete mounting – the keyof each lock should be horizontal.

� Engage the cams in their housings in therear plate.

� Attach the mounting firmly to the plate.� Fix the mounting using two new clips.

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7.4 Fitting interlocks to the earthing switch [for locations See § 3.4]

Preparation of the locking device (using Profalux locks for example)

NOTICEThe parts kit is identical to that in § 7.3.

NOTICEUse tools listed in § 2.3.

� Take hold of the barrel and engage thering.

� Position the white spacer. � Position the lock in its mounting hole.

Front view

� Turn the mounting.� Tighten slowly the nut from the rear

(26 spanner).

Rear view

3.5Nm

� Position the cam in the direction marked.

Rear view

� Fitting 2 locks: the cams must bepositioned as shown.

Rear view

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Fitting interlocks on a mechanical control C410

� Present the complete mounting – the keyof each lock should be horizontal.

� Engage the cams in their housings in therear plate.

� Attach the mounting firmly to the plate.

� Fix the mounting using two new clips.

7.5 Dismantling the lock mounts

� The mounting is held in place by twostaples.

� Move each staple apart to remove it. � Remove the complete support.

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8 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 sendus your remarks, suggestions and wishes to:

Schneider Electric Service Technique BP 84019 F-71040 Mâcon Cedex 9 - FRANCE

Fax: 33 (0)3 85 29 36 36

Schneider Electric Energy France

35, rue Joseph Monier

CS 30323

F - 92506 Rueil-Malmaison Cedex

RCS Nanterre 511 746 356

Capital social 6 909 620 €

www.schneider-electric.com

AMTNoT160-02 revision: 03

Due to possible changes in standards and equipment, the characteristics and imagesshown in this document can only be confirmed by contacting our departments.

Publication: Schneider Electric

Design: Schneider Electric

12-2010

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