instructions for use circuit breaker
Contents
1. 01 gl y A c 0 of Y Ai U0 1700 Dox JO 2 y li OIGNON HOLOENNDS A 38 L NOT N e fe je fe ie ze p g T D ES a ld HT HHH j no 31q0y90499P 14 4STud IS INAWACYOIOVY EN 2 lt I LLI ga e O 0n7 Y90798 TWNINYSL INT LOINNOJO S 0 0 5 00 4 9 4 A 00 ul g UO 1505 95509 NOTLYTIVISNI UNOd Y3INY04O i S 58 WE o ay u w T Ps A 2 N al O Jj val 6 prousauu 151 HOLIMS JUNSSTAA y 3 El Vines Yel NOLIVSI WNOTS 30 1V1505534d do i Y LAS pax 10 JuO A OU INTO NOILdO ISYY dIYL IMHS 15H14 LD ex L4S nod yuawenbiun NOILd0 NOISNJL 30 3S1N Y NIHON 1030 491 a 3LISNIINI O IXYW Y HNAHONT1930 4 CON la rl HILIMS ONTISUVHO 40 ON I INAWAWYY 264N09 30 NTIS 19VINOO i L 2043138 dIYL INNHG PUZ X Kl g 0 NOISNAL 30 ASIN 1043138 INISOT J4 Y UNSHONT IIIa ewe Y JAMAS NII 7 Ai T HOLIMS 3643138 0O2NIVINIVN ale y ANIINIVN INN THON 1930 LIVINOD r l un ONTO J y l A ee a Ch T 4 L 0 AV 144 ONT dWAd TINY NY 7 a2. monitoring arcing contact wear lubricating the spring guides operating mechanism unit gear MOO evracaddno pas rd ea in SEPAM diagnosis Lx rss satin TOVEW ONG nto Se ad este summarising table replacing a key lock replacing the closing springs replacing a release single closing release undervoltage release shunt release or overcurrent trip Unit shunt release or overcurrent trip unit two coils replacing an end of charging contact M1 M2 M3 replacing the antipumping relay replacing the auxiliary contact unit problems probable causes and solutions Ooo dl RARBROO W OCCON N 11 11 11 12 15 15 15 17 07896848EN revision 01 foreword symbols and omnes sae i you will find all the symbols CONVENUGNE below throughout the document indicating the hazard levels depending on the different types of situation A DANGER as per iso 3864 2 DANGER failure to follow this instruction will result in death or serious injury WARNING as per iso 3864 2 WARNING failure to follow this instruction may result in death or serious Injury CAUTION as per iso 3864 2 CAUTION failure to follow this instruction may result in injuries This alert signal can also be used to in
3. 01 lubricating the spring guides closing spring 07896848EN revision 01 Woo 9 j Charge the operating mechanism by an up and down motion until you hear a click Continue charging until you hear a click Check Close then open using the 1 and O pushbuttons in order to deactivate the operating mechanism gt a 4 The circuit breaker position indicator remains on OQ device open The operating mechanism indicator moves to the charged position The springs will be compressed lubricate the guides oil the phosphatised springs A CAUTION do not lubricate the teflonised ring A A WARNING A brush must be used to lubricate Do not dismantle the spring to perform this operation 25 opening spring manual closing of the circuit breaker A CAUTION Press the push button I to close the circuit breaker If the circuit breaker is equipped with an undervoltage release optional the latter must be energised in order to close the circuit breaker except in the case of downstream supply manual opening of the circuit breaker 4 Press the push button O to open the circuit breaker operating mechanism unit 26 The circ
4. NB keep the lugs and screws for subsequent handling operations A CAUTION Never pull or push the device by the poles the poles are pressurised 07896848EN revision 01 overall dimensions LF1 630 A LF1 1250 A LF2 630 A et 1250 A LF3 2500 A LF3 3150 A 07896848EN revision 01 devices LF1 630 A LF1 1250 A LF2 630 A et 1250 A LF3 2500 A LF3 3150 A phase to phase 145 145 185 240 240 dimensions A B 497 749 497 749 627 749 827 749 827 749 weight Kg 160 170 190 280 320 10 07896848EN revision 01 installation instructions PE i To fit or extract a draw out LF fitting and extracting on an MCset functional unit refer to the functional unit user manual i i To plug in or out a draw out LF plugging in and out on an MCset functional unit refer to the functional unit user manual removing the front plate Remove the 6 front plate fixing Reassemble the covers in reverse screws order to disassembly Remove the front plate 07896848EN revision 01 A electrical diagram n 889461 d or withdrawable pressure swith 1 treshold IXe t breaker fi Ircul MV c yl
5. 1 2 Motor voltage 3 MITOP 4 5 6 7 8 EZ C2 M2 9 SFG kg sealed pressure system Diagram N Contains fluorinated greenhouse gases covered by Kyoto protocol 10 IEC 6227 100 Ed 11 2003 05 Label indicating the undervoltage trip device option Un storage prolonged storage unpacking and handling handling by lifting handling by rolling The circuit breakers are dispatched in the open position with the operating mechanism deactivated In the exceptional case of the circuit breaker being delivered separately from an MCset FU and in the event of prolonged storage the device must remain in its original packing In the exceptional case of the circuit breaker being delivered separately from an MCset FU unpack the equipment on the installation site avoid impacts Sling up the device using the lifting lugs and place it on the OED When the device has been taken up by the OED unhook the slings remove the handling parts and their screws The device is handled by its front face by means of a moving part extraction tool OED on an even floor Store the devices in their original packing 644 Y IPS 70 C 40 C After prolonged storage all insulating parts must be thoroughly cleaned prior to use The enclosure must be dusted using a clean dry cloth Once the device is unpacked handle it by lifting or rolling means
6. JV dWOd TINY 0 SIV 138 0 oe gl g al ra el nf a aj ay sl 8 Bi 5 E f 05 SLIVNO ARTO TE TT i g 2 y GIHIVI TANT SIOVINO al LI Zj 4 Bl El SL f LL S l l W N 7 LNO Id NO A NO NOLIYSITYNIIS ONTHOHONY f m 29 1100430NN tant En at an TU 7 0 een JINVHO TE dd NOLLWSITYN9IS i Y UNSHONT IOI 0 fe al y A P u0 1504 M7 0078 TYNINYJL 9NI LIINNOJ O A AA O 4 sl al uo 15DJ 35509 NOIIYTIYISNI YNOd Y3INSOE O IDRE Neu Y uol1do paxIy J0 L ___ a qomoupya im JOLIINNOO AT 3O L 0A MOT to LHH 4 H 4 E E T 9x1y u013d0 e fe w w Je Je fie m fa Ja Je fa fre frs E no 1q0y00409P 19 I5I4d IS INAWSCYOIOVY WSINVHOSW 9NISO T9 T INV ONY 9NINId0 HASN ON 5 5 i 4 13034 NOLLOIOHAINI 13 183AO 1N3ITD 9 2 7 Us Te a er WSINYHOSN 9NISOT YSN and y 3111904 WNOIS LOYINOD 35431384 dOLIN NSINVHI3N ONT LYYAdO dOLIN UNSHONITOIO dOLIM EN3HONITOJO und INANIN35 NSINVHOJW ONIINGIdO TWNYH aD MARIE 01919313 404 ANO 4DV388 LINDUTD NOLLdO 0079 3384 SITAINOASIO SINHOG YAS NOILdO 17244 NO 30014119373 SIONYWHOI YNOd Jr mis MUMS rl signalisation pression SF6 source d alimentation commune pour signalisation commande arm e et signalisation disj O disj F point commun pour bobine enclenchement et relais anti pompage SF6 pressure signalisation common source of power supply for end of charging signalisation and opened or closed CB signalisation common point for releasa interlock and anti pumping relay
7. Signalisation pression SF6 point commun pour signalisation commande arm e et signalisation disj O disj F surveillance continuit du circuit de d clenchement SF6 pressure signalisation common point for end of charging signalisation and opened or closed CB Signalisation supervision of continuity release circuit signalisation pression SF6 point commun pour signalisation commande arm e et signalisation disj O disj F SF6 pressure signalisation common point for end of charging signalisation and opened or closed CB Signalisation signalisation commande arm e surveillance continuit du circuit de d clenchement end of charging signalisation supervision of continuity of release circuit les pontages sont possibles uniquement sur les disjoncteurs avec prises de raccordement the bridges are only possible on the circuit breaker with low voltage connectors type de branchement 1 re lettre du sch ma type of connection 1 ch letter of diagram A B CID E FG H JP 72173 XXX XX XI I X presence de pont entre les bornes bridge between terminals teres X X X x x hh x 2 o 73 74 a H pontage standard et niveau C X X X X X H bridge standard and level C 89 95 X on X Du x ou X x 69 71 X oe pee eee A pontage a utiliser qu en cas de retrofit interchangeabilit 74 38 A x A bridge only to be us
8. breaker closes and opens immediately and remains open although the closing order is maintained The circuit breaker opens and closes in turn The circuit breaker does not open manually or remotely circuit breaker without electricaloperating mechanism 07896848EN revision 01 The information given below reduces operating downtimes to a minimum Faulty devices Electrical operating mechanism motor End of charging contact Wiring Undervoltage release Closing release Charging device All opening trip units direct or indirect Antipumping relay or direct releases Operating mechanism or circuit breaker incomplete closing Trip unit If the solutions proposed are not effective we suggest you contact the Groupe Schneider service centre Probable causes and solutions Insufficient voltage at motor terminals restore voltage replace motor if required check contact state replace it if required check auxiliary circuit connections The coil is not energised energise the release or keep it artificially in the closed circuit position The release is badly connected check the circuit The winding is cut replace the release The operating mechanism is not charged charge the operating mechanism There is a fault on the main HV circuit or protection circuits are incorrectly adjusted remove the fault adjust the protection circuits repla
9. point commun pour signalisation commande arm e signalisation pression SF6 signalisation disj O disj F surveillance continuit du circuit de d clenchement common point for end of charging signalisation SF6 pressure signalisation opened or closed CB signalisation Supervision of continulty release circuit point commun pour signalisation commande arm e signalisation pression SF6 signalisation disj O disj F common point for end of charging signalisation SF6 pressure signalisation opened or closed CB signalisation point commun pour signalisation commande arm e signalisation pression SF6 surveillance continuit du circuit de d clenchement common point for end of charging signalisation SF6 pressure signalisatio supervision of continulty release circuit point commun pour signalisation commande arm e signalisation pression SF6 common point for end of charging signalisation SF6 pressure Signalisation signalisation commande arm e surveillance continuit du circuit de d clenchement point commun pour signal pression SF6 et signal disj O disj F end of charging signal supervision of continuity release circuit common point for SF6 pressure and opened or closed CB signalisation signalisation commande arm e point commun pour signalisation pression SF6 et signalisation disj O disj F end of charging signalisation common point for SF6 pressure and opened or closed CB signalisation
10. N revision 01 replacing a release different positions of releases in the operating mechanism release undervoltage shunt overcurrent top view of assembly release release trip unit position single closing AR release l AV undervoltage AR release Il AV single An opening release d d HI 6 IV amp A AV double Mi opening release d d single closing release according to position removal fitting and checking 07896848EN revision 01 Mark and disconnect the wires Remove the two M6 fixing screws Remove the release Fit in reverse order to removal Tightening torque 13 Nm Position the release with its cylindrical rod pointing towards the latching crank handle Check that the coil rod does not flange the crank handle in the tripped position and ensures passage of the closing lock A on the eccentric catch B 33 undervoltage release according to position II removal fitting and checking shunt release or overcurrent trip unit according to position Ill removal fitting and check
11. ce the relay readjust Hard spot on the operating mechanism or circuit breaker finish charging the mechanism with the manual charging handle Warn the Groupe Schneider service centre The trip unit is badly connected Check the circuit The winding is cut replace the trip unit check the protection circuit 45 46 07896848EN revision 01 07896848EN revision 01 47 48 07896848EN revision 01 group Schneider Electric service centers are there for engineering and technical assistance start up training preventive and corrective maintenance adaptation work spare parts Call your sales representative who will put you in touch with your nearest group Schneider Electric service centers Schneider Electric Industries SAS 89 boulevard Franklin Roosevelt F 92500 Rueil Malmaison France Tel 33 0 1 41 29 85 00 http www schneider electric com 07896848EN revision 01 As standards specifications and designs change from time to time please ask for confirmation of the information given in this publication Conception r daction Service Documentation Technique T amp D Edition du 14 04 2008
12. circuit breaker MV distribution factory built assemblies Anglais at your service instructions for use LF draw out circuit breakers Schneider TOTO WO ii a a ee eee tee cee he cece os doe i wa Ss don da eau symbols and conventions as per ISO 3864 2 contact the Schneider Electric service unit for diagnosis and advice distribution rules safety rules idee di ser ee generaldeseriplion muss red draw out circuit breakers FOND DANN reed operating mechanism plate handling and storage instructions identification Soraga octets de schien prolonged storage unpacking and handling overall dimensions installation instructions operating INSHTUCHUONS merida rr idas operating mechanism plate circuit breaker manual operation circuit breaker remote operation preventive maintenance corrective maintenance INSILUCHONS y 2 0 does Gare ae ee arrancada ee te aes SF6 gas recovery 07896848EN revision 01 fitting and extracting plugging in and out removing the front plate electrical diagram n 889461 foreword 272 oc cuanto eee sidi summarising table preventive maintenance and cleaning instructions
13. ctive covers front plate and operating mechanism plate Removal and replacement of the covers is described in the installation instructions section This device is designed to operate for 10 years or 10 000 operations in normal conditions of use according to the IEC 694 standard To access the various parts open the circuit breaker cut the supply to the auxiliary circuits and the main circuit close then open the circuit breaker by means of the push buttons in order to deactivate the operating mechanism avoid impacts pressurised enclosure gt The front plate is removed by withdrawing its clips We recommend an opening closing operation at least once a year a visual inspection at least once every 5 years with the Groupe Schneider service centres 19 summarising table description servicing operations supplies tools pole enclosure dusting the enclosure cloth arcing contact wear degree measuring degree of wear lamp bell operating mechanism spring guide cleaning with a degreasing unchlorinated solvent cloth agent degreasing agent greasing oiling vacuoline oils 133 oil brush oiler Isoflex Topas L152 grease operating mechanism unit overall cleaning cloth greasing oiling vacuoline oils 133 oil brush oiler Isoflex Topas L152 grease latching mechanism cleaning with a degreasing unchlorinated solvent cloth and linkage agent d
14. dicate practices that could damage the SM6 unit INFORMATION ADVICE We draw your attention to this specific point 07896848EN revision 01 3 contact the Schneider Electric service unit for diagnosis and advice 1 Call your sales representative who will put you in contact with the closest SCHNEIDER ELECTRIC group service centre You can log on to www schneider electric com distribution rules D safety rules The aim of this publication is to enable the SF6 unit to be installed correctly A CAUTION All the operations described below must be performed in compliance with applicable safety standards under the responsibility of a competent authority This document is not a commercial document It is a strictly technical document drawn up by Schneider Electric A WARNING The contractor must be certified and authorised to manipulate and perform work on the SF6 unit A CAUTION Only undertake the work after having read and understood all the explanations given in this document If you have any difficulty complying with these rules please contact Schneider Electric 07896848EN revision 01 general description draw out _ circuit breakers E LF1 630A x LF1 1250A LF2 630A and 1250A LF3 2500A 07896848EN revision O1 5 LF3 3150A front panel monw gt Q TI poles Operating mechanism plate circuit break
15. e closing 1 pushbutton and the charging lever in order to release the latching mechanism 07896848EN revision 01 fitting the closing springs SE Very slowly close the When the lamp is on a rod with circuit breaker using the lever a diameter less than or equal to Stop charging as soon as the 6 mm can be inserted in the hole lamp comes on the arcing shown above contacts of the three phases For larger diameters absence of are in contact signal means the device must be replaced A CAUTION Keep the lever in this position with the bell activated If the position is overshot repeat the operation Fit the spring on pin C and ring B Press the closing button and at the of the operating mechanism same time A CAUTION Do not lubricate when mounting and do not scratch the teflonised ring 07896848EN revision 01 23 continue charging Fit the washer and the circlips A Slightly charge the operating mechanism in order to unflange the springs 24 Y In order to bring the crank handle D into the axis of the lower fixing hole of the spring guide Check that the circuit breaker is open and that the operating mechanism is deactivated j me un NA Remove the locking created on the springs with the 6 dia screw or pin 07896848EN revision
16. ed in retrofiit cases o EEE Etre ee 07896848EN revision 01 13 14 07896848EN revision 01 operating mechanism plate 1 operating mechanism charging lever closing pushbutton Opening pushbutton Operation counter open or closed device status mechanical indicator charged or uncharged operating mechanism charging status mechanical indicator O1 BB N O circuit breaker manual operation carrying out a Closing Opening cycle charging the operating mechanism closing A CAUTION if the circuit breaker is equipped with an undervoltage release optional the latter must be energised in order to close the circuit breaker except in the case of downstream supply 07896848EN revision 01 operating instructions m Charge the operating mechanism by an up and down motion until you hear a click lt 4 Press the pushbutton to close the circuit breaker The circuit breaker position indicator remains on OQ device open The operating mechanism indicator moves to the charged position EN The circuit breaker position indicator moves to device closed The operating mechanism indicator moves to the deactivated position opening un Press the pushbutton to open the circuit breaker carrying out an Opening Closi
17. egreasing agent greasing oiling vacuoline oils 133 oil brush oiler Isoflex Topas L152 grease gear motor greasing Isoflex Topas L152 grease brush pole operating mechanism connection mechanism cleaning with a degreasing agent cloth greasing oiling vacuoline oils 133 oil brush oiler Isoflex Topas L152 grease propulsion guide cleaning with a degreasing agent unchlorinated solvent cloth degreasing agent greasing Isoflex Topas L152 grease brush endless screw cleaning with a degreasing agent unchlorinated solvent cloth degreasing agent greasing isoflex Topas L152 grease brush 20 07896848EN revision 01 preventive maintenance and cleaning instructions A CAUTION Never use solvents and alcohol monitoring arcing contact wear This operation requires removal of the springs removing the closing springs 07896848EN revision 01 The pressurised SF6 gas inside the pole retains all ts dielectric properties after breaking Electrical durability is limited by contact wear This wear depends on device use We draw your attention to the risk of cleaning processes consisting of spraying solvents at high pressure 9 Dr Arcing contact wear is monitored on the operation mechanism circuit breaket pole link D Slightly charge the operating mechanism using the charging lever The main drawbacks of such processes are damage due to jet pressure and impossib
18. er frame front plate mechanical opening pushbutton moving part position selector Opening for inserting the operating crank handle of the moving part moving part position mechanical indicator operating mechanism plate 1 operating mechanism charging lever 2 closing pushbutton 3 opening pushbutton 4 operation counter 5 open or closed device status mechanical indicator 6 charged or uncharged operating mechanism charging status mechanical indicator 6 07896848EN revision 01 identification location of the information plates IEC standard A technical data and auxiliaries plate B serial number contactor and auxiliaries rating plates 1 device type designation 2 rated voltage 3 rated lightning impulse withstand voltage 4 rated continous operating current rated breaking capacity for CC 3s no load breaking capacity rated operating sequence Class SF6 mass reference standard characteristics information plates O1 0 N O option label stuck on the operating mechanism plate 07896848EN revision 01 handling and storage instructions Check that the technical data marked on that the connection diagram is the rating plates match the enclosed with the device manual information given on the order form Schneider Serial number amp Electric
19. he pushbutton to close the circuit breaker Press the pushbutton to open the circuit breaker electrical charging of the operating mechanism A gear motor unit automatically recharges the operating mechanism after a circuit breaker closing a gt The circuit breaker position indicator remains on OQ device open The operating mechanism indicator moves to the charged position BER WW The circuit breaker position indicator moves to device closed The operating mechanism indicator moves to the deactivated position The circuit breaker position indicator moves to O device open The operating mechanism indicator moves to the deactivated position opening and closing The release opening and closing operations are remote controlled 17 18 07896848EN revision 01 foreword safety instructions general rules cycle and maintenance operations 07896848EN revision 01 preventive maintenance All the operations described below must be performed in accordance with applicable safety standards under the supervision of a competent authority We recommend that you extract the circuit breaker from the MCset cubicle see functional unit user manual Our equipment is designed to guarantee optimum service provided that the maintenance operations described in this document are complied with These operations require removal of the prote
20. ility of re lubricating inaccessible fixing points risk of overheating due to solvent presence on contact areas elimination of special protections If the insulating parts are dusty it is recommended that you remove the dust using a dry cloth Check that the circuit breaker is open with its operating mechanism deactivated Ny the springs will be compressed checking 22 0 as soon as possible insert a 6 dia 40 mm long min screw or pin into the hole shown above Release the lever The springs will exert a force on the pin On no account must the pin be free do not exceed the first notch on the operating mechanism or perform a complete cycle and start again Serial connect the three phases of the device and insert a bell type indicator in the circuit f Exert pressure on the lever and at the same time pull the right hand crank handle towards you until the ratchet wheel is latched Remove the washer and circlips A Release and withdraw the spring Remove ring B taking care not to damage it Teflon coating Charge the operating mechanism until you hear a click indicating charging is complete At the same time press th
21. ing 34 Mark and disconnect the wires Remove the two M6 fixing screws Remove the trip unit 1 mm mini Place the trip unit in the tripped When the magnetic circuit is position Place the crank handle in closed check that there is at least the limit stop position 1 mm clearance between the idle 0 5 to 1 mm between the crank handle and the trip unit Fit the two M6 fixing screws Tightening torque 13 Nm Mark and disconnect the wires Remove the two M6 fixing screws Remove the release Fit in reverse order to removal Tightening torque 13 Nm Position the release with its cylindrical rod pointing towards the latching crank handle B Check that the coil rod does not A flange the crank handle in the tripped position and ensures Sa passage of the closing lock A on the eccentric catch B 07896848EN revision 01 according to position IV removal fitting and checking shunt release or overcurrent trip unit two coils according to position V removal fitting and checking 07896848EN revision 01 NB the coil is mounted to the left or right of the operating mechanism according to the protection type Mark and disconnect the wires Remove the two M6 fixing screws This assembly is compatible with the presence of an undervoltage release Remove the release Fit in reverse order to removal Tightening torque 13 Nm P
22. ion 01 aS SOON as possible insert a 6 Remove the washer and the dia 40 mm long min screw or pin circlips A into the hole shown above Remove ring B taking care not Release the lever The springs will to damage it Teflon coating exert a force on the pin On no account must the pin be free do not exceed the first notch on the operating mechanism or perform a complete cycle and start again Fit the spring and ring B on pin C Press the closing button and at the of the operating mechanism same time A CAUTION Do not lubricate when mounting and do not scratch the teflonised ring L Fa Continue charging In order to bring the crank handle D into the axis of the lower fixing hole of the spring guide 31 Fit the washer and the circlips A Slightly charge the operating mechanism in order to unflange the springs Continue charging until you hear a click 32 Check that the circuit breaker is open and that the operating mechanism is deactivated Remove the locking created on the springs with the 6 dia screw or pin Check Close then open using the 1 and O pushbuttons in order to deactivate the operating mechanism 07896848E
23. lates Tightening torque 0 7 Nm Mark and disconnect the wires Remove the 6 hexagon socket screws and fixing nuts Proceed in reverse order Lock the contact fixing screws Tightening torque 0 7 Nm Adjustment do not flange the contact adjust travel A 0 7 02 mm NB to adjust A loosen nut B move the part along C 39 replacing the antipumping relay removal i N Mark and disconnect the wires fitting Fit the fixing screw on the relay and position the relay replacing the auxiliary contact unit removal Remove the operating mechanism cover locate the contact unit A mark and disconnect the wires 40 Loosen the fixing screw and slide the relay so that the screw leaves the slot Use a 7 wrench ES TPS SNG y Lock the fixing screw in place Tightening torque 0 7 Nm Connect the wires as in the wiring diagram and bind Remove the terminal block assembly B fixed by screws washers and nuts C 07896848EN revision 01 instructions presentation OLD rotary switch ENTRELEC NEW rotary switch MAFELEC dismantling the OLD rotary switch remove rotary switch A remove rivet G which locks small plate J remove crank H and small plate J 07896848EN revision 01 41 fitting of new r
24. lumn Raise the motor ratchet wheel as far as it will go and lock it using the screwdriver Fit the screws class 10 9 stick using SR 270 strong loctite and secure the gear motor assembly to a torque of 13 Nm O ON Y a To fit the gear motor raise the rat chet wheel as far as it willgo and lock it using the screwdriver Should a ratchet catch in the rat chet wheel it will prevent this ope ration Insert the gear motor taking care not to remove screw G so as not to lose spacer H placed between the two flanges Y _ Te lt amp SED we Sees Hook the spring onto the gear motor pin 07896848EN revision 01 replacing an SE microswitch removal fitting and checking replacing an end of charging contact M1 M2 M3 removal fitting and adjustment 07896848EN revision 01 Perform reverse operation to disas sembly having first compensated clearance in an anticlockwise direction and pushed the contacct in the direction of the auxiliary contacts connect the wiring to the terminal block Remove the two fixing screws Remove the microswitch without withdrawing the insulating p
25. nance Corrective maintenance operations are designed to replace faulty subassemblies The operations listed in the summarising table below can be performed either by the customer or by the Groupe Schneider After Sales representatives For any other operations consult your nearest Groupe Schneider representatives summarising table description performed by After each operation carry out the electrical tests in accordance with current standards A CAUTION when replacing equipment the following accessories must all be replaced by new devices Nylstop self locking nut Contact washer Locking eye bolts Mechanical pin comments replacing the enclosure Schneider Electric replacing the device replacing the RI operating mechanism Schneider Electric replacing the key lock Schneider Electric o Customer replacing the closing spring replacing the releases Schneider Electric o Customer simple closing releases Schneider Electric o Customer shunt releases or simple overcurrent trip devices Schneider Electric o Customer undervoltage trip devices withort lifting system Schneider Electric o Customer undervoltage trip devices withort lifting system with a time delay unit Schneider Electric o Customer undervoltage trip devices with lifting system Schneider Electric shunt releases or dorble overcurrent trip devices replaci
26. ng Opening cycle charging the operating mechanism closing A CAUTION if the circuit breaker is equipped with an undervoltage release optional the latter must be energised in order to close the circuit breaker except in the case of downstream supply charging the operating mechanism 16 Y Charge the operating mechanism by an up and down motion until you hear a click Wi Press the pushbutton to close the circuit breaker S Charge the operating mechanism by an up and down motion until you hear a click The circuit breaker position indicator remains on OQ device open The operating mechanism indicator moves to the deactivated position gt The circuit breaker position indicator remains on OQ device open The operating mechanism indicator moves to the charged position mm The circuit breaker position indicator moves to I device closed The operating mechanism indicator moves to the deactivated position gt The circuit breaker position indicator remains on device closed The operating mechanism indicator moves to the charged position 07896848EN revision 01 opening closing opening circuit breaker remote operation 07896848EN revision 01 a Press the pushbutton to open the circuit breaker Press t
27. ng the MITOP release Schneider Electric o Customer Schneider Electric replacing the gear motor Schneider Electric o Customer every 10 000 operations replacing the microswitch SE Schneider Electric o Customer replacing the M1 M2 and M3 end of charging contacts Schneider Electric o Customer replacing the antipumping relay Schneider Electric o Customer replacing the auxiliary contact unit Schneider Electric o Customer replacing the operation counter Schneider Electric every 10 000 operations 07896848EN revision 01 29 replacing a key lock removal This interlocking is optional With MCset integration interloc king is conducted on the functio nal unit fitting and checking replacing the closing springs removing the closing springs 30 Fit the lock on its support Fit and tighten the lock fixing screws Very slightly charge the operating mechanism using the charging lever Remove the 2 screws fixing the lock Separate the lock from its support A Part A must not be flanged by the latch on lock B Check that the circuit breaker is open and that the operating mechanism is deactivated yy the springs will be compressed 07896848EN revision 01 fitting the closing springs 07896848EN revis
28. osition the release with its cylindrical rod pointing towards the latching crank handle Check that the coil rod does not flange the crank handle in the tripped position and ensures passage of the closing lock A on the eccentric catch B Mark and disconnect the wires Remove the two M6 fixing screws Remove the release Fit in reverse order to removal Tightening torque 13 Nm Position the release with its cylindrical rod pointing towards the latching crank handle Check that the coil rod does not flange the crank handle in the tripped position and ensures passage of the closing lock A on the eccentric catch B 35 according to position VI removal fitting and checking replacement gear motor and roller on the ratchet holder removing the gear motor 36 Mark and disconnect the wires Remove the two M6 fixing screws Remove the release Fit in reverse order to removal Tightening torque 13 Nm Position the release with its cylindrical rod pointing towards the latching crank handle Check that the coil rod does not flange the crank handle in the tripped position and ensures passage of the closing lock A on the eccentric catch B NY f Unhook the ratchet holder return spring and lift the gear latching rat chet by means of a screwdriver Remove
29. otary switch Assemble on the new unit crank H To end the assembly the operation according to the assembly is the reverse to the dismantling direction shown above fix rotary switch D on the reference O engraved on the operating mechanism pin in front of the hole of rivet G fix pin E and colar F Fit plate J and fix it by a rivet G or a diameter 3 screw fix and lock the 2 nylstop nuts K fix the assembly terminal block D fix by screws washers nuts dismantling of the new rotary switch Remove the 2 nylstop nuts K Remove pin E and colar F remove rotary switch D 42 07896848EN revision 01 07896848EN revision 01 Remove rivet G which locks small plate J Remove crank H and small plate J 43 SF6 gas recovery conformity rules intervention method 44 The SF6 must be removed before any dismantling operation can be carried out in compliance with the procedures described in IEC 61634 and accordiing to the following instructions The gas must be treated in compliance with IEC 60480 Plug A Vacuum filling device connected Connect the vacuum filling device Wait until the pressure guage shows 0 15 min to empty the tank before removing the connection 07896848EN revision 01 problems probable causes and solutions symptoms Charging impossible Circuit breaker closing impossible the indicator remains green The circuit
30. the gear motor 3 screws Raise the motor ratchet holder as high as possible and lock it in place with the screwdriver df AC Disconnect the 2 motor supply wires 07896848EN revision 01 removing the roller on the ratchet holder placing the roller on the ratchet holder 07896848EN revision 01 Remove the small column EOS A N AL nn _ jar PA Assemble the roller with the part of the pin used to hook the spring tur ned towards the gear motor Take out this rivet Replace it with an M4 screw com bined with washers and lock nut Remove spring A Remove the roller Truarc B washers C bearing D internal bearing ring E pin F Prepare and lubricate the parts bearing D internal bearing ring E pin F washers C Truarc B spring A A nr A Place the spring on the ratchet holder 37 fitting the gear motor 38 O Stick SR 270 strong loctite and screw the HM6 length 12 class 12 9 stud in the yellow column on the tool mark side Stick SR 270 strong loctite and screw the new column equipped with the stud into the operating mechanism co
31. uit breaker position indicator moves to device closed The operating mechanism indicator moves to the deactivated position The springs will be compressed lubricate the guides oil the phosphatised springs A WARNING A brush must be used to lubricate Do not dismantle the spring to perform this operation The circuit breaker position indicator moves to O device open The operating mechanism indicator indicates that the mechanism is deactivated Clean the entire subassembly Oil all the phosphatised parts Check that the locking eye bolts are fitted Lubricate the pins and hinges A WARNING A brush must be used to lubricate Do not dismantle the operating mechanism to perform this operation 07896848EN revision 01 gear motor SEPAM diagnosis 07896848EN revision 01 This function supplies the total number of breakings and the cumulated total of broken kA2 The cumulated total of broken amps reflects the degree of wear of the breaking part Clean the entire subassembly Lubricate the gears A WARNING A brush must be used to lubricate Do not dismantle the gear motor to perform this operation This information is used to manage arcing contact wear and to generate monitoring Maximum levels of broken amp cumulated totals LF1 2 or 3 cumulated 30000 KA 2 27 28 07896848EN revision 01 foreword corrective mainte
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