circuit breaker - Schneider Electric...

46
instructions for use SF draw---out circuit---breakers in F400 MV distribution circuit breaker at your service circuit breaker Anglais

Transcript of circuit breaker - Schneider Electric...

Page 1: circuit breaker - Schneider Electric Belgiëms.schneider-electric.be/Main/MCset_Fluair400/...circuit---breaker manual charging operation 17..... circuit---breaker remote control operations

instructions foruse

SF draw---outcircuit---breakersin F400

MV distributioncircuit breakerat your service

circuit breaker

Anglais

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07897178EN revision : 01 1

foreword 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .symbols and conventions 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .as per iso 3864---2 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .contact the Schneider Electric service unit for diagnosis and advice 4distribution rules 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .safety rules 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

general description 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .draw---out circuit ---breakers 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .front panel 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .operating mechanism plate 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

handling instructions 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .identification 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .storage 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .unpacking and handling 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .dimensions 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

installation instructions 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .fitting and extraction 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .plugging in and plugging out 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .removing the front plate 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .electrical diagram n˚ 51189827FO 12. . . . . . . . . . . . . . . . . . . . . . . . . . . .electrical diagram n˚ 51189828FO 14. . . . . . . . . . . . . . . . . . . . . . . . . . . .

operating instructions 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .operating the moving part 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .presentation of the operating mechanism plate 17. . . . . . . . . . . . . . . . .circuit ---breaker manual charging operation 17. . . . . . . . . . . . . . . . . . . .circuit ---breaker remote control operations 19. . . . . . . . . . . . . . . . . . . . .circuit ---breaker interlocking 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

preventive maintenance 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .foreword 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .summarising table 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .preventive maintenance and cleaning instructions 22. . . . . . . . . . . . . .checking arcing contact wear 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .lubricating the spring guides 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .operating mechanism unit 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .latching unit 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .gear motor 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SEPAM diagnosis 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

corrective maintenance 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .foreword 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .summarising table 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .replacing the keylocking (optional) 32. . . . . . . . . . . . . . . . . . . . . . . . . . . .replacing the closing springs 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .replacing a release 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .the different positions of the release positions in the operatingmechanism 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .single closing release 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .undervoltage release 37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .shunt release or overcurrent 37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .shunt release or overcurrent (two coils) 38. . . . . . . . . . . . . . . . . . . . . . . .replacing the motor of the gear motor 38. . . . . . . . . . . . . . . . . . . . . . . . .replacing a microswitch (SE) 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .replacing an end of charging contact 39. . . . . . . . . . . . . . . . . . . . . . . . . .replacing an antipumping relay 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .replacing an auxiliary contact unit 42. . . . . . . . . . . . . . . . . . . . . . . . . . . . .SF6 gas recovery 43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .problems, probable causes and their solutions 44. . . . . . . . . . . . . . . . .

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2 07897178EN revision : 01

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INFORMATION--ADVICEWe draw your attention to this specific point.

DANGER

CAUTION

WARNING

as per iso 3864---2

as per iso 3864---2

as per iso 3864---2

DANGER: failure to follow thisinstruction will result in death or seriousinjury.

WARNING: failure to follow thisinstruction may result in death orserious injury.

CAUTION: failure to follow thisinstruction may result in injuries.This alert signal can also be used to indicatepractices that could damage the SM6 unit.

07897178EN revision : 01 3

symbols andconventions

Caution:you will find all the symbolsbelow throughout thedocument, indicatingthe hazard levelsdepending on thedifferent types of situation.

foreword

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4 07897178EN revision : 01

contact the SchneiderElectric service unit fordiagnosis and advice

Call your sales representative whowill put you in contact withthe closestSCHNEIDER ELECTRICgroup service centre.You can log on to:www.schneider--electric.com

distribution rules The aim of this publicationis to enable the SF6 unitto be installed correctly.

This document is not a commercialdocument.It is a strictly technical documentdrawn up by Schneider Electric.

safety rulesCAUTION

All the operations described belowmust be performed in compliancewith applicable safety standards,under the responsibilityof a competent authority.

WARNING

The contractor must be certifiedand authorised to manipulateand perform work on the SF6unit.

CAUTION

Only undertake the work afterhaving read and understoodall the explanations given in thisdocument.If you have any difficulty complyingwith these rules, please contactSchneider Electric.

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07897178EN revision : 01 5

draw---outcircuit---breakersSF1standard IEC 1250 A

SF2standard IEC 1250 A

SF2standard IEC 2500 A 3000A

general description

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D

C

B

J

F

A A A

G

H

E

4

1

2

3

87

5

6

6 07897178EN revision : 01

front panelA : polesB : operating mechanism plateC : circuit ---breaker frameD : front plateE : mechanical openingpushbutton

F : moving partposition selector

G : moving partoperating crank handleinsertion orifice

H : moving partposition mechanicalindicator

J : LV socket

operatingmechanism plate1 : technical data plate2 : undervoltage release(optional)

3 : circuit ---breaker opening andclosing pushbutton

4 : circuit ---breaker positionmoving marker

5 : operating mechanism positionmoving marker

6 : operating lever7 : operating leverinsertion opening

8 : ey--- locking(optional)

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A

B

11)

1)2)3)4)5)6)

9)

7)

8)

10)

07897178EN revision : 01 7

identification Ensure that:H the technical data marked onthe information plates matches thedata specified on the order form.

H the wiring diagram is attachedto the device manual.

location of theinformation plateIEC standardA : information plate oncircuit ---breaker type andperformance

B : serial number (on the backof the device)

contactor and auxiliariesrating plates1 : device type designation2 : rated voltage3 : rated lightning impulsewithstand voltage

4 : rated continous operatingcurrent

5 : rated breaking capacityfor CC 3s

6 : no--- load breaking capacity7 : rated operating sequence8 : class9 : SF6 mass10 : reference standard11 : characteristics informationplates

option labels(stuck onto the operatingmechanism plate)A : red label: indicates theundervoltage trip deviceoption

B : label indicating thekey--- locking option.

A B

handling instructions

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---40o C

70o C

8 07897178EN revision : 01

storage The devices are dispatched in theopen position with their operatingmechanism deactivated.

Store the devices in their originalpacking.

prolonged storage Should the device exceptionallybe delivered separately from aF400 and stored for a prolongedperiod of time, the device mustremain in its original packing.

Following prolonged storage, allthe insulating parts must bethoroughly cleaned prior to use.The enclosure must be dustedusing a clean, dry cloth.

unpacking andhandling

Should the device exceptionallybe delivered separately from aF400.H unpack the equipmenton the installation site.H avoid impacts.

Once the device has beenunpacked, it will be handled bylifting or rolling.

handling by lifting Use the lifting lugs to sling up thedevice.After handling.Remove the two liftinglugs and the screws and bolts.

Remark: the lugs, screws andbolts must be kept in view offurther handling.

handling by rolling The device is handled viaits front panel. CAUTION

never pull or push the device bythe poles(the poles are pressurised).

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C

B

A

A

B

C

A C

B

07897178EN revision : 01 9

dimensionsSF1standard IEC 1250 Astandard ANSI 1200 A

SF2standard IEC 1250 Astandard ANSI 1200 A

SF2standard IEC 2500 to 3000Astandard ANSI 2000 to 3000A

draw--out circuit--breaker phase--to--phase

dimensions weight

A B C Kg

SF1 1250 A / 1200 A 250 796 1210 1224 240

SF2 1250 A / 1200 A 250 796 1210 1224 298

SF2 1250 A / 1200 A 300 990 1210 1224 310

SF2 2500A 2000A 300 990 1240 1224 340

SF2 3000 A 3000 A 300 990 1245 1224 352

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10 07897178EN revision : 01

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Page 12: circuit breaker - Schneider Electric Belgiëms.schneider-electric.be/Main/MCset_Fluair400/...circuit---breaker manual charging operation 17..... circuit---breaker remote control operations

07897178EN revision : 01 11

fittingand extraction

To fit or extract a draw---out SFfrom a F400 functional unit,...

...refer to the functional unit usermanual.

plugging inand plugging out

To plug in or out a draw---out SF ina F400 functional unit,...

... refer to the functional unit usermanual.

removing the front plate

Remove the 7 screws fixingthe front plate.Remove the front plate.

The panels are reassembled inopposite order to disassembly.

installation instructions

Page 13: circuit breaker - Schneider Electric Belgiëms.schneider-electric.be/Main/MCset_Fluair400/...circuit---breaker manual charging operation 17..... circuit---breaker remote control operations

12 07897178EN revision : 01

electrical diagram n˚ 51189827FO

Page 14: circuit breaker - Schneider Electric Belgiëms.schneider-electric.be/Main/MCset_Fluair400/...circuit---breaker manual charging operation 17..... circuit---breaker remote control operations

A B C D E F G H J72 / 73

73 / 74

89 / QF25

69 / 71

--- --- / --- ---

bridge between terminals --- --- / --- ---

H bridge standard

A bridge only to be used in retrofiit cases

type of connection (1 th letter of diagram)

72 / 87

74 / 87

72 / 75

74 / 75

07897178EN revision : 01 13

A : SF6 pressure signalisation/common source of power supply for end of charging signalisation and opened or closed CB signalisation / commonpoint for release interlock and anti---pumping relay

B : common point for: end of charging signalisation/SF6 pressure signalisationopened or closed CB signalisation supervision of continuity release circuit

C : common point for end of charging signalisation /SF6 pressure signalisation signalisationopened or closed CB signalisation

D : common point for end of charging signalisation /SF6 pressure signalisation / supervisionof continuity release circuit

E : common point for end of charging signalisation / SF6 pressure signalisationF : end of charging signal continued surveillance / supervision of continuity releasecircuit: common point for SF6pressure signalisation signalisation openedor closed CB signalisation

G : end of charging signalisation / common point for SF6 pressuresignal and opened or closed CB signalisation

H : SF6 pressure signalisation / common point for end of charging signalisation andopened or closed CB signalisation supervision of continuity release circuit

J : SF6 pressure signalisation / common point for end of charging signalisation andopened or closed CB signalisation

the bridges are only possible on the circuit breaker *with low voltage connectors

Page 15: circuit breaker - Schneider Electric Belgiëms.schneider-electric.be/Main/MCset_Fluair400/...circuit---breaker manual charging operation 17..... circuit---breaker remote control operations

14 07897178EN revision : 01

electrical diagram n˚ 51189828FO

Page 16: circuit breaker - Schneider Electric Belgiëms.schneider-electric.be/Main/MCset_Fluair400/...circuit---breaker manual charging operation 17..... circuit---breaker remote control operations

A B C D E F G H J72 / 73

73 / 74

89 / QF25

69 / 71

--- --- / --- ---

bridge between terminals --- --- / --- ---

H bridge standard

A bridge only to be used in retrofiit cases

type of connection (1 th letter of diagram)

72 / 87

74 / 87

72 / 75

74 / 75

07897178EN revision : 01 15

A : SF6 pressure signalisation/common source of power supply for endof charging signalisation and opened or closed CB signalisation / commonpoint for release interlock and anti---pumping relay SF6pressure signal

B : common point for end of charging signalisation/SF6 pressure signalisationopened or closed CB signalisation supervision of continuity release circuit SF6pressure signal

C : common point for end of charging signalisation /SF6 pressure signalisationsignalisation opened or closed CB signalisation SF6 pressure signal

D : common point for end of charging signalisation /SF6 pressure signalisation/ supervision of continuity release circuit SF6 pressure signal

E : common point for end of charging signalisation / SF6 pressure signalisation / SF6 pressure signalisationF : end of charging signal continued surveillance / supervision of continuity releasecircuit: common point for SF6 pressure signalisation and opened or closed CBsignalisation common point for SF6 pressure signalisation and opened or closed CB signalisation

G : end of charging signalisation / common point for SF6 pressure signal and openedor closed CB signalisation

H : SF6 pressure signalisation / common point for end of charging signalisation andopened or closed CB signalisation supervision of continuity release circuit / SF6 pressure signalisation

J : SF6 pressure signalisation / common point for end of charging signalisation andopened or closed CB signalisation / SF6 pressure signalisation

the bridges are only possible on the circuit breakerwith low voltage connectors

Page 17: circuit breaker - Schneider Electric Belgiëms.schneider-electric.be/Main/MCset_Fluair400/...circuit---breaker manual charging operation 17..... circuit---breaker remote control operations

16 07897178EN revision : 01

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Page 18: circuit breaker - Schneider Electric Belgiëms.schneider-electric.be/Main/MCset_Fluair400/...circuit---breaker manual charging operation 17..... circuit---breaker remote control operations

A

1

2F

B

E

G

2

1H

C

D

J

07897178EN revision : 01 17

operating the moving part

To insert or extract the moving partand open or close the door, referto section ...

...“ operating instructions “ usermanual.

presentation of theoperating mechanismplateA : operating mechanismcharging lever

B : operating mechanismcharging lever housing

C : closing push buttonD : opening push buttonE : operation counter

F : circuit ---breaker positionmoving marker:

1 : apparent marker (O)circuit ---breaker open

2 : apparent marker (I)circuit ---breaker closed

G : operating mechanism positionmoving marker

H : operating mechanism positionmarker

1 : marker (spring compressed)operating mechanism activated

2 : marker (spring slack) operatingmechanism deactivated I

J : circuit ---breaker keylocking inthe “ Open ” position(optional)

circuit---breaker manualcharging operation

This is performed with lever Ainserted in its housing B.To operate the circuit ---breaker, theoperating mechanism must first becharged.

The energy stored in the springsthen allows the circuit ---breaker tobe closed and opened.A new cycle is performed byrecharging the operatingmechanism.

charging the operatingmechanism

circuit--breakermarker

operatingmechanismmarker

initial position--- Circuit ---breaker open--- Operating mechanism deactivated.

Charge the operating mechanismby moving up and down until itclicks in place.

operating instructions

Page 19: circuit breaker - Schneider Electric Belgiëms.schneider-electric.be/Main/MCset_Fluair400/...circuit---breaker manual charging operation 17..... circuit---breaker remote control operations

18 07897178EN revision : 01

circuit--breakermarker

operatingmechanismmarker

The circuit ---breaker positionmarker remains on “ O ”(device open).The operating mechanism markerindicates that it is charged.

closing Remark:closing is impossible if there is atleast one interlock preventing closing.

CAUTION

if the circuit ---breaker is equippedwith an undervoltage release(optional), the latter must beenergised in order to close thecircuit--breaker (except fordownstream power supply).

Press the push button “ I ” to closethe circuit ---breaker.The positionindicator F of the...

F

H

2

... circuit ---breaker moves to “ I ”(device closed).The marker ofoperating mechanism H2indicates that it is deactivated.

opening

Press the push button “ O ” toopen the circuit ---breaker.Theposition indicator F of the...

F

H

2

... circuit ---breaker moves to “ O ”(device open).The marker of operatingmechanism H2 indicates that it isdeactivated.

Page 20: circuit breaker - Schneider Electric Belgiëms.schneider-electric.be/Main/MCset_Fluair400/...circuit---breaker manual charging operation 17..... circuit---breaker remote control operations

07897178EN revision : 01 19

circuit---breaker remotecontrol operations

Electrical charging of theoperating mechanismA gear motor assemblyautomatically recharges theoperating mechanism aftercircuit ---breaker closing.

Opening and closingThe opening and closing releasesare remote controlled.

circuit---breakerinterlocking(optional)Remark:when the device is equipped withthe optional circuit ---breakerinterlocking in the open position,circuit ---breaker closing isdisabled.

The circuit ---breaker is keylockedin the open position.To lock:H keep the “ O ” opening pushbutton depressedH turn and remove the key.

Page 21: circuit breaker - Schneider Electric Belgiëms.schneider-electric.be/Main/MCset_Fluair400/...circuit---breaker manual charging operation 17..... circuit---breaker remote control operations

20 07897178EN revision : 01

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07897178EN revision : 01 21

forewordsafety instructions

All the operations described belowmust be performed in accordancewith applicable safety standardsunder the supervision of acompetent authority.

To reach the various devices:H open the circuit ---breakerH cut the power supply to theauxiliary circuits and the main circuitH close then open the circuit breakerusing the push buttons in order todeactivate the operating mechanismH avoid impacts

general rules Our equipment is designed toguarantee optimum operationprovided that the servicingconditions described in thisdocument are respected.Servicing requires removal of theprotective panelling (front plate andoperating mechanism plate).Removal and refitting of the frontplate is described in the chapter“ Installation instructions ”.

The operating mechanism plate isremoved by withdrawing the 4marked screws.

cycle and servicingoperations

This device is designed to functionfor a period of 10 years or for10,000 operations in normaloperating conditions inaccordance with the IEC 694standard.

The following are recommended:--- an O/I operation at least oncea year--- a visual inspection at least onceevery 5 years to be determinedwith the Groupe Schneiderservice centres.

preventive maintenance

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22 07897178EN revision : 01

summarising tabledescription maintenance supplies toolspole enclosure

dust the enclosure clothplug--- in arms clean using a degreasing agent unchlorinated solvent

degreasing agentcloth

degree of wear of the arcing contacts lamp, bellmeasure degree of wear

operating mechanismspring guide clean using a degreasing agent unchlorinated solvent

degreasing agentcloth

lubricate, oil 133 oils vacuoline oil IsoflexTopas L152 grease

brush, oiler

operating mechanism unit general cleaning clothlubricate, oil 133 oils vacuoline oil Isoflex

Topas L152 greasebrush, oiler

latching unit and linkages clean using a degreasing agent unchlorinated solventdegreasing agent

cloth

lubricate, oil 133 oils vacuoline oil IsoflexTopas L152 grease

brush, oiler

gear motor lubricate Isoflex Topas L152 grease brushpole mechanism

clean using a degreasing agent clothlubricate, oil 133 oils vacuoline oil Isoflex

Topas L152 greasebrush, oiler

preventive maintenanceand cleaninginstructions

The pressurised SF6 gasinside the pole retains all itsdielectric properties after breaking.Electrical durability is limited bycontact wear.This wear depends on device use.We draw your attention to the riskof cleaning processes. consistingof spraying solvents at highpressure.

The main drawbacks of suchprocesses are.H damage due to jet pressure andimpossibility of re--- lubricatinginaccessible fixing points.H risk of overheating due tosolvent presence on contact areas.H elimination of specialprotections.

CAUTION

Never use solvents and alcohol.

If the insulating parts are dusty, itis recommended that you removethe dust using a dry cloth.

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A

B

07897178EN revision : 01 23

checking arcingcontact wearThe wear check will be performedeither on the front or rear of thecircuit ---breaker depending on thepole type.A : circuit--breaker equippedwith SF2 poles

B : Disjoncteur équipé de pôlesSF1

removing the closingsprings CAUTION

As the operating mechanism has 2springs, mark them before removalfor identification purposes.

righthand springs

Very slightly charge the operatingmechanism using the operatinglever.

The springs are compressed.

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24 07897178EN revision : 01

A

B

B

As soon as possible insert a screwor pin A 6 mm diameter and40 mm long into the hole shownabove.Release the lever.The spring will then exert pressureon pin A instead of on the top andbottom pins B.

D

C

E

(do not exceed the first notch on theoperating mechanism, or performa complete cycle and start again).To separate the guide from thesprings:--- remove clips C andwasher D.H separate the spring guide fromring E of the crank handle.

CAUTION

Do not scratch the teflonised ring.

lefthand springs

Continue charging the operatingmechanism using the operatinglever.

The springs are compressed.

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07897178EN revision : 01 25

F

As soon as possible, insert ascrew or pin F 6 mm in diameterand 40 mm long in the hole shownabove.Release the lever.The spring will then exert pressureon pin F.

J

G

H

(do not exceed the first notch on theoperating mechanism, or performa complete cycle and start again).To separate the guide from thesprings:H remove clips G and washer H.IH separate the spring guide fromring J of the crank handle.

CAUTION

Do not scratch the teflonised ring.

checking

Serial connect the three phases ofthe device and insert a bell typeindicator in the circuit.

Charge the operating mechanismuntil the end of charging click.

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26 07897178EN revision : 01

Keep pressing on the lever whilepulling the righthand crank handletowards you until the ratchet wheellatches.

At the same time press the closingbutton and the charging lever inorder to release the latching unit.

Very slowly close thecircuit ---breaker using the lever.

Stop charging as soon as thelamp comes on: the arcingcontacts of the three phasesare in contact.

CAUTION

keep the lever in this position withthe bell activated.If the position is exceeded, repeatthe operation.

Red Green

Red Green

good arcing contacts

worn arcing contacts

SF2 polesIf the poles activate the bell whenthe finder is in the red area, all3 poles must be replaced.

Red Green

Red Green

good arcing contact

worn arcing contact

SF1 polesIf the poles activate the bell whenthe end of the link is in the redarea, all 3 poles must be replaced.

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07897178EN revision : 01 27

fitting the right and lefthandclosing springs

CAUTION

these springs can be fittedat the same time

Disconnect the testerSlowly close the circuit---breaker untilyour hear the end of charging click.

Press the push button.The device should open.

Place the rings on the pins of theright and lefthand crank handles.

CAUTION

Do not lubricate before mounting.Do not scratch the teflonised ring.Place the right and lefthand springguides on the pins, positioningthem correclty in the pin groove.

Place the righthand crank handlering in the opening of therighthand spring guide using thecharging lever.Continue charging by correctlypositioning the spring guide in thelefthand crank handle ring groove.

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28 07897178EN revision : 01

A

CAUTION

Do not lubricate the teflonised ringA.

B

C

D

C

2

1

Place washers D and clips C(to the right and left).Remove the screws or pins B.Finish charging.CheckingClose then open using the “ I ” and“O ” push buttons, in order todeactivate the operating mechanism.

lubricatingthe spring guidesclosing spring

Charge the operating mechanismby moving up and down until itclicks in place.

The circuit---breaker position indicatorremains “O ” (device open).The operating mechanism indicatormoves to the “ activated ” position.

A

The springs are compressed.H lubricate the guidesH oil the phosphatised springs

CAUTION

Do not lubricate the teflonised ringA.

WARNING

A brush must be used tolubricate.Do not disassemble the spring toperform this operation.

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07897178EN revision : 01 29

opening springlocal manual closingof the circuit--breaker

CAUTION

if the circuit ---breaker is equippedwith an undervoltage release(optional), the latter must beenergised in order to closethe circuit ---breaker.

Press the push button in order toclose the circuit ---breaker.

The circuit ---breaker positionindicator moves to “ I ” (deviceclosed).The operating mechanismindicator moves to the“ deactivated ” position.

The springs are compressed.H lubricate the guidesH oil the phosphatised springs

WARNING

A brush must be used tolubricate.Do not disassemble the spring toperform this operation.

local manual openingof the circuit--breaker

Press the push button in order toopen the circuit ---breaker.

The circuit---breaker position indicatormoves to “O ” (device open).The operating mechanismindicator indicates that it isdeactivated.

operating mechanismunit

Clean the entire subassemblyOil all the phosphatised partsCheck presence of the Baumanhoops.Lubricate the pins and hinges.

WARNING

A brush must be used tolubricate.Do not disassemble the operatingmechanism to perform thisoperation.

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30 07897178EN revision : 01

latching unit Clean the entire subassembly thenoil the phosphatised partsLubricate the latching units andpins.

WARNING

A brush must be used tolubricate.Do not disassemble the latchingunit to perform this operation.

gear motor Clean the entire subassemblyOil the phosphatised partsLubricate the gears.

WARNING

A brush must be used tolubricate.Do not disassemble the gearmotor to perform this operation.

SEPAM diagnosis This function supplies the totalnumber of breakings and thecumulated total of broken KA2.The cumulated total of brokenamps reflects the degree of wearof the breaking part.

This information is used to managearcing contact wear and togenerate monitoring.Refer to the section on monitoringarcing contact wear.Maximum levels of broken ampcumulated totals:SF1, 2 cumulated 30 000 (KA)2

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07897178EN revision : 01 31

foreword Corrective maintenance operationsare designed to replace faultysubassemblies.The operations listed in thesummarising table below can beperformed by the customer or byGroupe Schneider’s After---Salesrepresentatives.For any other maintenanceoperations, please contact yournearest Groupe Schneiderservice centre.

After each operation perform theelectrical tests in accordancewith applicable standards.

CAUTION

When replacing parts, all theaccessories listed below MUST beplaced by the new equipment:-- Nylstop (self-- locking nut)-- Contact washer-- Retaining rings-- Mechanical pin

summarising tabledescription performed by comments

replacing poles =S=

replacing the GMh operating mechanism =S=

replacing keylocking =S= or Customer

replacing the closing spring =S= or Customer

replacing the releases

single closing release =S= or Customer

shunt release or single overcurrent trip device =S= or Customer

undervoltage trip device without lifter =S= or Customer

undervoltage trip device with lifter =S=

shunt release or double overcurrent trip device =S= or Customer

replacing the MITOP =S=

replacing the motor of the gear motor =S= or Customer

replacing the gear motor =S= every 10,000 operations

replacing the microswitch (SE) =S= or Customer

replacing the end of charging contact =S= or Customer

replacing the antipumping relay =S= or Customer

replacing the 5 or 9 auxiliary contact unit =S= or Customer

replacing the operation counter =S= every 10,000 operations

actions to perform in event of a pressure switch alarm =S=

corrective maintenance

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32 07897178EN revision : 01

replacing thekeylocking (optional)removing

A

Release the lockRemove screws A

fitting

B

A

NB:the lock is retrieved on site.The identifying label is stuckto the plate.Adjustment:Screws A not locked in place.Continue depressing the pushbutton.Close the lock with the key extracted.Check a clearance B is presentand lock screws A.

replacingthe closing springs CAUTION

as the operating mechanism has 2springs, you must mark them beforeremoval for identification purposes.

removalrighthand springs

Very slightly charge the operatingmechanism using the operating lever.

The springs are compressed.

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07897178EN revision : 01 33

A

As soon as possible, insert a screwor pin A 6 mm diameter and 40 mmlong in the hole shown above.Release the lever.The springs then exert pressureon pin A.(do not exceed the first notch on theoperating mechanism, or performa complete cycle and start again).

D

C

E

To separate the guide fromthe springs:H remove clips C and washer D.H separate the spring guide fromring E of the crank handle.

CAUTION

Do not scratch the teflonised ring.

lefthand springs

Continue charging the operatingmechanism using the operating lever.

The springs are compressed.

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34 07897178EN revision : 01

F

As soon as possible, insert ascrew or pin F 6 mm in diameterand 40 mm long in the holeshown above.Release the lever.The springs then exert pressureon pin F.(do not exceed the first notch on theoperating mechanism, or performa complete cycle and start again).

J

G

H

To separate the guide fromthe springs:H remove clips G and washer H.H separate the spring guide fromring J of the crank handle.

CAUTION

Do not scratch the teflonised ring.

fitting the right andlefthand closing springs

CAUTION

these springs can be fittedat the same time

Disconnect the testerSlowly close the circuit ---breakeruntil the end of charging click.

Press the push button.The device should open.

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07897178EN revision : 01 35

Place the rings on the pins of theright and lefthand crank handles.

CAUTION

Do not lubricate before mounting.Do not scratch the teflonised ring.Place the right and lefthand springguides on the pins, positioningthem correclty in the pin groove.

Place the righthand crank handle ringin the opening of the righthand springguide using the charging lever.Continue charging by correctlypositioning the spring guide in thelefthand crank handle ring groove.

A

CAUTION

Do not lubricate the teflonised ringA.(do not exceed the first notch on theoperating mechanism, or performa complete cycle and start again).

B

D

C

2

1

Place washers D and clips C(to the right and left).Remove the screws or pins B.Finish charging.checkingClose then open using the “ I ” and“O ” buttons, in order to deactivatethe operating mechanism.

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36 07897178EN revision : 01

replacing a releasethe different positions of the release positions in the operating mechanism

release undervoltage shuntrelease

overcurrent top view of assembly position

single closing-

I

Front

Back

undervoltage

- II

Front

Back

singleopening - -

III IVFront

Back

Front

Back

doubleopening - -

VFront

Back

single closing releaseaccording to position Iremoval

Mark and disconnect the wires.Remove the two M6 fixing screws.Remove the release.

fitting and checking Proceed in reverse order fromremoval.Tightening torque: 13 Nm.Position the release with itscylindrical rod facing the latchingunit.Check that the coil rod does notflange the unit crank handle in thetripped position.It should ensure that closing latchA moves to eccentric catch B.

A B

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07897178EN revision : 01 37

undervoltage releaseaccording to position IIremoval

Mark and disconnect the wires.Remove the two M6 fixing screws.Remove the release.

fitting and checking

0.5 to 1 mm

Position the release in the trippedposition.Position the crank handle in thelimit stop position.There should be a clearance of 0.5to 1 mm between the crankhandle and the release.

1 mm min.

Fit the two M6 fixing screws.Tightening torque: 13 Nm.Check that there is a clearance ofat least 1 mm between thenon---operating crank handle andthe release when the magneticcircuit is closed.

shunt releaseor overcurrentaccording to positionIII or IVremoval

NB: the coil is mounted to the leftor right of the operatingmechanism according to theprotection type.For lefthand mounting, insert four0.5 mm washers between theoperating mechanism frame andthe coil.Mark and disconnect the wires.Remove the two M6 fixing screws.Remove the release.

fitting and checking Proceed in reverse order fromremoval.Tightening torque: 13 Nm.Position the release with itscylindrical rod facing the latchingunit.Check that the coil rod does notflange the unit crank handle in thetripped position.It should ensure that closing latchA moves to eccentric catch B.

AB

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38 07897178EN revision : 01

shunt release orovercurrent (two coils)according to position Vremoval

Mark and disconnect the wires.Remove the two M6 fixing screws.Remove the release.

fitting and checking Proceed in reverse order fromremoval.Tightening torque: 13 Nm.Position the release with its cylindricalrod facing the latching unit.Check that the coil rod does notflange the unit crank handle in thetripped position.It should ensure that closing latchA moves to eccentric catch B.

A

B

replacing the motorof the gear motorremoval

Mark and disconnect the wires.Remove the two M6 fixing screws.Remove the motor.

fitting Proceed in reverse order fromremoval.

Tightening torque: 13 Nm.

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07897178EN revision : 01 39

replacinga microswitch (SE)continuous trippingremoval

Remove the screws and thelatching lug.Mark and disconnect the wires.

Remove the two fixing nuts withoutremoving the screws.Remove the microswitch withoutremoving the insulating plate.

fitting Proceed in reverse order fromremoval.

Tightening torque: 0.7 Nm.

replacing an end ofcharging contactremovalNB: removal of the lefthandclosing spring simplifies thisoperation.

A

B

C

Remove clip A and spacer B inorder to withdraw pin C.A wrench can be passed throughthe window to remove screw E.

do not disassemble

The end of charging contacts areplaced on the lefthand side surfaceof the operating mechanism.Mark and disconnect the wires.

D

Remove the two screws in order torelease contact holder D.

E

Swivel the guide in order to bringnut E up in front of the window.Remove the fixing screw.

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40 07897178EN revision : 01

D

Swivel the contact.Slide holder assembly D and...

D

.... contacts upwards in order torelease it from the guide andoperating mechanism.

Remove the faulty contact.

Mount the new contact on the holder.

CAUTION

Only mount one screw on therighthand contact.Tightening torque: 2.8 Nm.

fitting D

Slide the holder assembly D andcontacts to the bottom of the guide.

E

Swivel the guide in front of thewindow in order to fit the fixingscrew and nut E.Tightening torque: 2.8 Nm.

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07897178EN revision : 01 41

D

Put back the contact holder Dwithout tightening the bolts.

A

B

C

Fit pin C, spacer B and clips A.

0,1 mm mini

0,5 à 1 mmF

checkingEnsure that there is at least 0.1 mmbetween the pin and the guide, thenlock the screws in place.Tightening torque: 6 Nm.Check that there is a clearance of0.5 to 1 mm between the contactfinger and part F.With the operating mechanism inthe deactivated position, checkthat the contacts are not flanged.Connect the wires.

replacing anantipumping relayremoval

C

D

A

B

Mark and disconnect the wires.Relay A is fixed onto the auxiliarycontacts by strap B.Remove fixing bolt C and retrieve itfor fitting.Remove relay A and insulatingplate D.

fitting Proceed in reverse order fromremoval.

Tightening torque: 2 Nm.

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42 07897178EN revision : 01

replacing an auxiliarycontact unitremoval

1

2

Auxiliary contact unit1 --- 5 contacts2 --- 9 contactsMark and disconnect the wires.

A

AC

1

2

E

B

D

For a 5---contact unit: loosen boltsA and release crank handles Band C.For a 9---contact unit: loosen bolt Dand release crank handle E.

F

Identify contact location using holeF in order to put the new unit backinto the same position.

1

G

Remove bolts G which must beretrieved for fitting.Remove the unit to be replaced 1or 2.

fitting Proceed in reverse order fromremoval.

Bolt tightening torque:A and D : 10 Nm.G : 2 Nm.

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07897178EN revision : 01 43

SF6 gas recoveryconformity rules

The SF6 must be removed beforeany dismantling operation can becarried out in compliance with theprocedures described inIEC---61634 and accordiing to thefollowing instructions.The gasmust be treated incompliance with IEC---60480.

intervention method

Tool necessary for the operation

A

Plug (A).

Connect the vacuum/filling device.

Wait until the pressure guageshows 0 (15 min to empty thetank) before removing theconnection.

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44 07897178EN revision : 01

problems, probablecauses and theirsolutions

The information listed belowensures minimum operatingdowntimes.

If the solutions proposed are noteffective, you should contact yournearest Groupe Schneiderservice centre.

symptoms faulty components probable causes andsolutions

Impossible to charge Electrical operating mechanism:motor

Insufficient voltage at motorterminals:H restore voltageH replace motor if necessary

End of charging contact H check contact stateH replace it if necessary

Wiring H check auxiliary circuitconnections

Circuit--breaker will not closethe indicator remains in the openposition

Undervoltage tripping The coil is not suppliedH supply the release or keep itartifically in the “ closed cirucit ”position (e.g. by using an elasticband).

Closing release The release is incorrectly connectedH check the circuitThe winding is cutH replace the release

Charging device The operating mechanism is notchargedH charge the operatingmechanism

The circuit--breaker closes andopens immediately, thenremains open although theclosing order is maintained.

All opening releases Fault on the main MV circuit orincorrect adjustment of theprotection circuitsH remove the faultH adjust the protection circuits

The circuit--breaker opens andcloses in turn.

Antipumping relay or directreleases

H replace the relayH readjust

The circuit--breaker does notopen manually or by remotecontrol(circuit ---breaker withoutelectricaloperating mechanism).

Operating mechanism orcircuit ---breaker

Hard spot on operatingmechanism or circuit ---breakerH finish charging the operatingmechanism with the manualcharging handle.Alert the Groupe Schneiderservice centre.

Opening release The release is incorrectly connectedH check the circuitThe winding is cutH replace the releaseH check the protection circuit.

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group Schneider Electric servicecenters are there for:

engineering and technicalassistancestart-uptrainingpreventive and correctivemaintenanceadaptation workspare parts

Call your sales representativewho will put you in touch withyour nearest group SchneiderElectric service centers.

Conception, rédaction: Service DocumentationTechnique T&D

Edition du : 14/04/200807897178EN revision : 01

As standards, specifications and designs change from timeto time, please ask for confirmation of the information givenin this publication.

Schneider Electric Industries SAS

89, boulevard Franklin RooseveltF---92500 Rueil---Malmaison (France)Tel : +33 (0)1 41 29 85 00

http://www.schneider---electric.com