AEG SF6, Operating Instructions Manual

Page 1: ...Opl rating instructions lo 127 B Type 51 145 Fl 4 131 5R with spring operating mechanism eRR 5 ...

Page 2: ...ce to these instructions in this manual will ensure the reliability of the circuit breaker It is impossibh to consider every eventuality which might occur during operation of a mechanical device Therefore kindly contact yo 0 al AEG agency in r se you have any queries which have not been i cluded in this manual AEG reserves the right to alter these instructions if necessitated by ongoing developmen...

Page 3: ...of the Electrical Control Circuits Measurement of the Operating Times Check of the SF Gas Quality Measurement of the Resistance of the Main Circuit Check of the Bolt Connections Replacement of 1he Arcing Contacts Preliminary Remr rks i sions Procedure Disassembling ol a Complete Pole Column Preliminary Remr rks Provisions Procedure Cleaning Greasing and Lubricating of the Operating Mechanism Preli...

Page 4: ... 6 1 6 2 6 3 I II III Control System SF6 Gas Supply Revision Set Overpressure Safet Device Spare Parts and Accessories Handling of SF6 Gas Permissible Number of Short Circuit Operations List of Figures and Tables ...

Page 5: ...to the following guidelines When equipment is operated in extreme ambient conditions it is advisable to shorten the inspection and maintenance intervals Such conditions are the following permanent high ambient temperature abrasive dust in the atmosphere high dust content atmosphere permanent high humidity corrosive gas or vapors in the atmosphere Due to the use of highly stable grease resp dry sel...

Page 6: ...ter a summarized current according to appendix II 2 1 Inspection To be carried by Erained staff Adopt the relevant safety precautions An openii19 of the pole columns is not necessary Check for corrosiol on metallic parts ant pipings Check the ventilation apertures Check of the anti ondensation heating at the base frame and at the cubicle the SF6 density monitor in the green range ...

Page 7: ...cubic le Check of the securing elements of the linkage Functional check of the electrical control circuits Measurement of tile operating times chapter 3 5 chapter 3 6 Measurement of t le res i stance of the main circllit 2 3 Reconditioning To be carried out by trained staff or AEG specialists Take the circuit o reaker out of service an opening of the pole columns is necessary ...

Page 8: ...nit and evacuate the cl lumns Then ventilate the pole columns When opening a pole cl lumn proceed as follows Wear rubber gloves protective clothing gas mask and breathing eouip 11ent during I ening and cleaning Remove decompos it i on products immedi ate ly after havi ng opened the breaker pole or Iny subassembly Wipe off decompos tion products with a piece of cloth or use a vacuum cleaner Do not ...

Page 9: ...e given in the routine test cert ificate The opening time is the time from energizing the opening release to contact separation The closing time is the time from energizing the closing release to contact touch 3 5 Check of the SF6 GIS Quality Check the gas qual il ywith respect to the water content SF6 content and acidity Use tre devices mentioned in chapter 6 3 pos 9 11 and 18 Nominal value dew p...

Page 10: ...torques for bolts and nuts This chapter descril es the replacement of the arcing contacts as required in table 83 Chapter 3 9 describes the disassembling of the complete pole column Replace the arcing CJntacts in closed dry and undusty rooms only Do not replace the I rcing contacts in the substation in inclement weather conditions or in windy conditions Clean all funct i ona l elements with a pi e...

Page 11: ... 915 617 1 contact 3 Revision set 26 0 kg 1 360 943 1 4 Assembling tOJl 0 5 kg 1 915 622 1 Table 85 Tools for the replacement of the arcing contacts b accessories Item De ignation 1 CRC anti corrlsion spray 0 5 kg 1 061 830 1 2 Loctite green 1 271 250 10 cm3 1 250 770 250 cm3 3 Loct ite blue 1 271 249 10 cm3 1 250 782 250 cm3 4 Scotch abrasi Ie pad 1 260 765 10 m x 100 mm 5 Cleaning a1ccilol 1 242...

Page 12: ... co 1 _ Iltl r _ j clamping ring upper Rep1acement not re qu ired On1y after heavy duty performed Special tools required These parts are shown in fig All part A Table 87 Spare part list for the replacement of the arcing contacts For detailed figures refer to part A of the operating instructions Breaker i n end pas tion OFF Closing spring di charged Store the SF6 gas in a service unit and evacuate ...

Page 13: ...e figure 81 item 8 Lift the chamber porcelain place it on a dry pad and clean the inner surfaces f om any decomposition products Uncoup1e the COII P 1ete interrupter uni t 1 3 by 1ooseni ng the locking pin 1 8 02 see figure 81 item 0 Use the assembling tool mentioned ill table 85 Pullout the comf1lete interrupter unit for disassembl ing of the complete pole columns proceed as described in chapter ...

Page 14: ...1 8 05 Remove used filter cartridge 1 8 04 from the filter housing insert a new cartridge and replace a complete filter housing Mount the cover L8 21 and fasten the bolts with 10 Nm Couple the linkage Connect the SF6 piping at poles A Band C Evacuate the breaker top up with SF6 to the rated pressure and put it into operat Lon The procedure is described in part A chapter 4 Check all flange ccnnecti...

Page 15: ...1 03 t C I 1 5 02 1 1 04 i 1 1 02 C i 1 5 03 i i 1 5 04 1 3 B I 1 2 i 1 3 1 1 09 1 5 06 I 1 1 10 i 1 5 i 1 4 i 1 5 04 1 5 I 1 5 05 I 1 8 29 D 1 8 28 1 8 02 1 6 1 8 26 1 8 30 1 3 07 1 7 F 1 8 27 s 1 8 39 1 8 02 1 8 28 1 8 1 8 29 E F 2x M8 8x M12 8x 13 ...

Page 16: ... 13 Interruptel unit Lower support for contact Guide strip PTFE Guide strip PTFE 1 3 1 5 1 5 03 1 5 04 Connecting tube Locking pirl Nut Connection Thrust pi ec e MlO Cap nut Cannetion Pi n Sleeve 1 3 07 1 8 02 1 8 26 1 8 27 1 8 28 1 8 29 1 8 30 1 8 38 1 8 39 Item F Disassemblin 1 of the support porcelain 1 6 8 bolts Ml 8 washers cj 13 ...

Page 17: ... contacts insulating rod etc Table 89 Spare parts list for disassembling the complete pole column Procedure Proceed as described in the chapter II renewa 1 of the arcing contacts up to Pullout the complete interrupter unit Remove the lower support of contact 1 5 figure Bl item E Undo the support orcelain 1 6 at the lower flange figure B1 item F and 1ift it off Undo the threaded insert 1 8 03 of th...

Page 18: ...wards out of the crank case Loosen the pin 1 _ 33 and disassemble completely Clean all parts fnm all decomposition products check and if necessary replace the parts b ing instructi s _c _ r contact and jointing surfaces a r f t as for static and dynamic gaskets Replace a 11 gasket Tighten the threadll d insert with 80 Nm Replace the sleeve 1 8 01 when coupling Replace three guicll strips PTFE for ...

Page 19: ... 8 02 Cover 1 8 21 Threaded insert 1 8 03 Sleeve 1 8 22 Filter cartridge 1 8 04 Gasket 1 8 23 Filter housing 1 8 05 Gasket 1 8 24 Opening spring 1 8 06 Insert 1 8 25 Insulating rod 1 8 07 Nut 1 8 26 Locking pin 1 8 08 Connection 1 8 27 Spring seat 1 8 09 Connection 1 8 30 Lever interna 1 1 8 19 SF6 coupling 1 8 31 Crank case 1 8 11 O ring 13 95x2 62 B 1 8 32 Ball bearing 1 8 12 Pin 1 8 33 Needle b...

Page 20: ...ints indi cated by the symbol I on the exploded view B3 should be lubricated Not e Ensure that the olening spring is udischargedll Before lubricatin disassemble the cabinet Lubricate all pdrts carefully The reassembled parts should be greased by using a highly stable grease ASEL SYLITEA 4 018 DIN 51825 T2 KTCLE H see chapter 4 2 ...

Page 21: ...Fig 83 Exploded view of tle spring operating mechanism ...

Page 22: ...et Retul1 n spring Linkilge Flywilee 1 Chaill ShaL Sprodet Sprodet Ant i condensat i on heater Ro111 r carri er Coup I ing sleeve Sprot ket Oper lt i ng shaft Pawl latch Spring Dashpot posL ion indicator closing spring Cam Moto limit switch Trip blocking mechanism Retu n spring Leve ShaL anlMl emerg rlc 0 ating device Shun opening release Cam Follower Shaf Retu n spri ng Manuil operating linkage S...

Page 23: ... 3 0 52 3 0 53 3 0 54 3 0 55 3 0 56 Chain complete Carn f lllower KRV26 Chain Sprod et Stud Leve Sprod et Termhals optional Closirlg spring Auxiliary switch Break E r position indic a1 or 3 0 01 3 0 12 3 0 19 3 0 22 3 0 28 3 0 36 3 0 45 3 0 55 ...

Page 24: ...is ensured by the mounting system b Shunt closing rele ie 3 0 36 fig 84 Remove the plate which may be fitted on the angle support Remove the two bolts which hold the angle support on the forward main mounting plate the corresponding nuts behind the plate are Cr il1F d position Disconnect the leads and remove the faulty closing release After replacement Ifthe c1osing release wire up and complete as...

Page 25: ...Replace the motlr and proceed vice versa Unscrew the support from the wiring plate Rep1ace the hea 1 er and proceed vice versa Remove the two iecuri ng rings and then pu11 out the small ax1e from the switch eyelet Press the lever into upright position Remove the two ruts securing the switch to its support After replacing the switch tighten the two nuts on the support Reset the axle and the two bus...

Page 26: ...ng ttli switch tighten the two nuts Insert a new nylon pin through the eyelet Unsc rewthe two mOI nting bolts After rep 1ac i ng th counter tighten the bolts By means of the set bolt on the counter s axle set the lever of the counter against the eyelet of the switch when the circuit breaker is switched on ...

Page 27: ... Accessories Side view Anti condensation heater Position indicator closing spring Shunt opening reol ase Option Y3 Shunt closing rel ase Option Y5 Breaker position indicator 3 0 12 3 0 20 3 0 28 3 0 36 3 0 56 ...

Page 28: ...locl out 2 optiona1 Overload release optional Motor protection contactor optional Close open push bu ton optional Shaft for manual charging Thermostat optional Outlet optional Close open indicator optional Local remote seleCl or switch optional Mechanical interlocking optional Nameplate Operation counter 3 0 01 3 0 22 3 0 27 3 0 45 3 0 53 3 0 55 3 0 57 3 0 58 3 0 59 3 0 60 3 0 61 3 0 62 3 0 63 3 0...

Page 29: ...7 1266 439 1266 440 1002 705 1002 706 Four different lubril ants are used The silicone grease SF 1377 has four different appli ations see a d the relevant application is indicated in the figJres B6 B7 and B9 by the appropriate letter Acid free vaseline an be used instead of SF 1377 in the appli cation d a Silicotre grease 50 1377 for sealing grooves between parts Grease the groove up to the outer ...

Page 30: ...rrying connections HV terminals l Apply a thin layer to the total surfaces e Berulub grease FK 33 for greasing sliding and bearing surfaces Apply a thin layer to the surfaces f Molykote grease BR2 plus for greasing strongly stressed sliding and bearing surfacEs in air Apply a thin layer to the surfaces g Aseol Sylitea 4 1ae for greasing parts of the spring operating mechanism h Acid_ free vaseline...

Page 31: ...SF 1377 0 SF 1377 d SF 1377 0 SF 1377 0 SF 1377 _ 0 SF 1377 d SF 1377 0 SF 1377 0 ...

Page 32: ...SF 1377 c rUlUb m m I SF 1377 c J i SF 1377 SF 137 b 0 SF 1377 SF 1377 0 b ...

Page 33: ...BeruLub FK 33 Fig B8 Points of lubrication at the interrupter unit and at thE arcing contacts ...

Page 34: ...SF 1377 bl SF 1377 bl SF 1377 II 1 _ _ _ __ L i SF 1377 bl SF 1377 cl SF 1377 bl SF 1377 bl ...

Page 35: ...1 CLtl _ l1oLykote BR2 pLus l 0 ...

Page 36: ...e coils Check the reason and eliminate any mechanical jamming Check if necessi1 ryreplace the contactors in the defective circuit If the SF6 density monitor is defective replace it Switch on the supply voltage In the event of an F6alarm check the gas pressure and refill Check the dens ity mon itor and if necessary replace it Should a gas leakage be assumed check all flange connections as well as a...

Page 37: ...2 Nm Position the hver 2 7 06 in such way that the edge of the cover 1 8 21 s visible when looking through the adjustment hole P Secu e the lever with washer 2 7 20 and bolt 2 7 21 Couple the connEction piece 2 7 04 with the pin 2 7 07 and secure with slee f e 2 7 08 washer 2 7 10 and bolt 2 7 09 To determine the adjustment position proceed as follows Fasten the nut 2 7 12 up to the revision set i...

Page 38: ...2 7 17 2 7 18 2 7 16 2 7 02 2 7 18 2 7 03 2 7 01 2 7 06 2 7 11 2 7 07 2 7 22 ...

Page 39: ...2 7 14 2 7 15 2 7 16 2 7 t7 2 7 18 2 7 19 2 7 20 2 7 21 2 7 22 rev ision set fralIe support threaded rod connection piece pin lever coupling pin sleeve bolt M6 washer bearing nut sphl ri ca 1 washer coniica1 seat needle bearing bo It M16 nut M16 washer I 17 bo It M16 washer bo It MI0 bearing bush ...

Page 40: ...re exerts a force on the expansion bolts 1 10 01 which will be elongated at set pressure of more than 400 of the rated pressure The fixed contact 1ifts from the flange of the porcelain and creates an opening between the flanges The bolts 1 10 05 retaill the fixed contact 1 10 Numb r Designation Quantity Expans i on bolt 1 10 01 Expans i on bolt 4 1 10 02 Metal spacer 4 1 10 03 Nut M12 4 1 1Q 04 Ca...

Page 41: ...ional wilshers 1 10 06 Put the metal spacers 1 10 02 on the expansion bolts grease threads wi th Mo iykote grease BR 2 plus and tighten the nuts 1 10 03 manua1 1 without a wrench Mark the nuts To prevent turning hold the expansion bolts 1 10 01 in place by means of a wrench and tighten half a turn Remove the nuts 1 10 08 from the retaining bolts 1 10 05 one by one Place wibhc l 1O 06 anJ LViii t 5...

Page 42: ...quired as spare parts can be ordered by their part numbers given in the instruction manual For spare parts of tte spring oper ting m chanism please refer to chapter Cleaning lireasing and Lubr icating of the Operating Mechanism Type specifi catien of breaker Serial number of b eaker Number of instruction manual Part number or ord r number Designation Quantity see nameplate see cover sheet ...

Page 43: ... Service cart with compressor DILO type 3 0l0 240 kg 1001 933 1 8 Leak detector type HI 300 0 5 kg 1274 369 1 Battery 1001 903 1 9 SF6 sampling device for measuring moisture DILO type 3 028 16 kg 1003 433 1 10 SF6 analysis Idt type AW 2 kg 1965 464 1 20 g 1000 629 0 3 kg 1977 977 40 kg 1001 397 15 kg 1000 676 1071 473 19 kg 1003 896 1 kg 1002 109 Metalpaper recorder Paper Potent i ometer Adapter T...

Page 44: ...e is 1000 ppm or 0 1 by volume Thi s very low value is the standard value adopte1d for all gases cons i dered haJ ffi l ess but not normally present in the atmosphere Under the influence of an are decomposition products occur which are partly toxic The decomposition products of SF6 are of different toxicity They may irritate mucou membrane respiratory tracts and other unprotected skin Almost immed...

Page 45: ... 01 127 8 44 It is mandatory for mai ntenance personnel to fo 11 ow these safety precaut ions C A UI ION A2 E31 18893 ...

Page 46: ... t s dl y when a cumulative curren1 r m value is reached Fig 813 shows the permissible number of operations under normal service conditions versus breaking current I i _ I 40 100 lcA Fig 1 13 Permissible number of CO operations without maintenance of the arcing contacts versus breaking current ...

Page 47: ...ontacts Points of lubrication at the base frame Points of lubrication at the linkage ReviSion set Overpressure safety device Permissible number of CO operations without maintenance of the arcing contacts versus breaking current Surv y r fi nspect ic n Survey of maintenarce Survey of reconditioning Tightening torques of bolts and nuts Tools for the repl cement of the arcing contacts Accessori es fo...