GE AK-1-15 Series Instructions Manual Download | Manualshive

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Courtesy of NationalSwitchgear.com

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Summary of Contents for AK-1-15 Series

Page 1: ...ON S GEH I807B f r t AIR CIRCUIT BREAKERS V i i Typos AK l lS and AK 1 25 Electrically Operated V m t i LOf VBU ASE SWITCHGEAR DEPARTMENT 1 v GENERAL ELECTRIC P H I L A D E L P H I A P A y Courtesy of NationalSwitchgear com ...

Page 2: ...DKVICES AND CONTROLS 6 4 0 t 7 7 r L 7 J i 9 S 9 9 12 17 17 i PROTECTIVE DEVICES TIME DELAY UNDERVOLTAGE TRIPPING DEVICE INSTANTANEOUS UNDERVOLTAGE TRIPPING DEVICE SERIES OVERCURRENT TRIPPING DEVICE REVERSE CURRENT TRIPPING DEVICE 19 20 20 n u SF MISCELLANEOUS SHUNT TRIPPING DEVfcfe BELL ALARM AND LOCKOUT DEVICES u GENERAL PURPOSE INDOOR ENCLOSING CASE WEATHER RESISTING ENCLOSING CASE DRAWOUT BREA...

Page 3: ...ns within the ratings designated The AK 1 15 and AK 1 25 differ in that the AK 1 26 has one extra contact per pole with cor r RECEIVING HANDLING Am STORAGE Immediately upon receipt of thecircuitbreaker any dirt or particles of packing material that may an examination should be made for any damage have accumulated on the breaker parte or loss sustained In transit Jf iniury or rough handling is evid...

Page 4: ...nal board on the right side of the reaker is used for making various control con nections with breaker devices An auxiliary switch on the left side of the breaker is used for some WIRING DIAGRAM control connections and for connecting various auxiliary accessories wiring diagram Fig 1 shows a typ elementary and itypfoftl connection diagram with the breaker in the open position When normal voltage i...

Page 5: ...P I M O 5 0 040 o 5 C 6 JA1 I F6 si K2 GS T G4 1 rt sin rX i y Al l r K 0 o CU 70M R WIRING FACTORY WIRING ww mww v FI wuMxn u J 5 FB t3ET r 1 wsss or s m 18 85SM 18 l CONNECTION DIAGRAM JMJ JUUEUAmiU A F V1 E ARD L0CATED T0P i0l T ti TERMINAL OOARD LOOATEP UNDER A F ANTMTIMI PERMISSIVE RELAY 0 GO bb MECHANISM SWITCH r 5 r I u XTRIP t oiose till Hh Bfc AS I S WK W M OfM SHONT TRIP DEVICE N WApSOLE...

Page 6: ... Inspect the breaker alter a shortcircuit Current lias been interrupted At the time of periodic inspection the following chock should bo made after the breaker has been do onorgiv cd INSPECTION BEFORE INSPECTION OR ANY MAINTE NANCE WORK IS DONE BE SURE THAT THE BREAKER IS IN THE OPEN POSITION ALL ELECTRICAL POWER BOTH PRIMARY AND CON TROL SOURCES SHOULD ALSO BE DISCON NECTED Periodic inspection of...

Page 7: ...XCESS LUBRICANT SHOULD BE HEMOVED WITH A CLEAN CLOTH IN ORDER TO AVOID ANY ACCUMULATION OF DIRT OR DUST O 8 Adjustable End Wrench S oSftJwSL E ul Wra ch TROUBLE SHOOTING In rr i TROUBLE CAUSE REMEDY I Overheating Contacts not aligned I Adjust contacts j i Contacts dirty greasy or coated with dark film Clean contact is Replace contacts Contacts badly burned or pitted Current carrying surfaces dirty...

Page 8: ...Fihmr Str SMI Rear Support StftdL H m 125 P 1 Unit 16 ttairt Sinait 17 Cap IS fttrAtlf 1 lMw lmt iR Llhfe 20 Stationary Owitaet 7 Operating tyftCliiltilMt B Mtx tiof Itormr IH mx 9 Ftimt Kscutdm 10 Ki4 U trip Rutft 12 Stop ttut 13 Eraiuurrant Trip Xjwlc 14 bow Stud 15 Sari Oil 1 Muffler 2 rnuidc Barrier 3 Outaido Harriot 4 Front Op 5 CllRMp 6 Ptr p FI Rifrtit tIdo Vim of Br ak r s I i r Courtesy o...

Page 9: ...lta 2 Unclasp fiber strap 23 3 Remove front Cap 4 muffler 1 outside barriers 3 inside barriers 2 and rear support 24 4 Install new or disassembled parts hi re verse order MEASURING CONTACT PRESSURE FIG 0 1 Romove arc quencher gee Replacements under Arc Quencher 2 Place a push typo scale against the upper end of m stationary contact tip 3 with the breaker closed 3 Exert pressure against the push ty...

Page 10: ...ce opening spring and cap in their proper position MEGJWYISM MOU NO If any of the contacts are badly corroded or pitted thereby making It impossible to adjust for proper contact pressure or contact wipe such stationary contacts or movable contact assemblies Should be replaced See Replacement below If the proper contact pressure does not exist ep the wipe is within its limits the stationary ntact s...

Page 11: ...ziiiSD r J I X 17 Stilus 18 Cbnt ct Carrier 19 frrifcift 20 Uppnr Stud 21K Shunt 22 8ttcl rJLmtft 12 Flexible rai ttUu Twimd 15 Low stud i M Ci np i 16 Pin MS Contact Support IL Uplift Stud Cap 7 Imuiitinn Link B Eccentric Bundling 9 Cliwap 10 Screw U Pin X Pol Unit tt e 2 Fiber St ni 3 Stationary Gtmtvat 4 Omtuct Pi 5 Movable Contact A ri0i e Polo Unit Aestaskijr 11 i Courtesy of NationalSwitchge...

Page 12: ...w check trip shaft for binds E 4 Mark position of 5 Repeat stops 2 and f rijj 7 Uoo oinc Lower Mounting Bolts i OPERATING MECHANISM WmiOUT CLOSING HANDLE The operating uieclianlsm see Fig 10 Is up ported between two molded side f rames in front Of the center pole unit It consists of a toggle linkage 19 crank 5 latch IB trip shaft 12 roller closing links 1 and armature 14 When the coil a ia onorgis...

Page 13: ...ich may pop out when main shaft is removed 14 Take off mecjhanteni by removing mounting screws from mechanism frame 15 Mechanism may now be rplaced ara a unit or disassembled and then reassembled with new parts as needled 16 Reassembly of the breaker is accomplished by reversing the procedure described In replacing the mechanism make surethat the dowels on the mecimnism side frames are properly se...

Page 14: ...in 19 and latch 13 resting on roller 6 will position Rotating pin 19 and latch 13 resting hold the contacts in the closed the tripshaft 14 in the counter iBlocfcwlse direction will release the roller ft which emmets the toggle linkage to collapse thereby allowing the opening springs 1G to push the main shaft and movable contacts forward to the open position Trip latch 13 is automatically reset dur...

Page 15: ... handle until It la released from the front escutcheon and operating shaft 4 Re assemblc operating handle to trout a wtetoiott and operating shaft in reverse order Front Escutcheon Assembly 1 Remove four mounting screws B Fig 3 2 Now pull forward on AIwi operating handle turning and tipping the front escutcheon slightly until dislodged from the breaker 3 To remount the front escutcheon assembly fi...

Page 16: ...ation Return spring 2 Fig H replaces 2 Fig 10 and cam support 7 Fig l t is added to linkage assembly Fig 11 ghowg how the linkage should be reassembled 4 Reassemble mechanism and breaker parts with exception of escutcheon Cn Mount new escutcheon assembly which will include a manual operating handle accord ing to the directions in me section titled WJTB CIIOSING HANDUS r under Replace w r 5 n 2 all...

Page 17: ...lso energising the breaker closing cull c The breaker then closes and latches causing the fob contact of toe prop switch 26 Fig 10 to open thereby de energbalng toe X contactor coll and the breaker closing eoi 3 a prop top front the front In order to change an a contact to a bn contact iti needtUKgry to remove the four tie bolt 2 ana change the position ext the particular cam 00 hi relation to the...

Page 18: ...oid is connected in series also resuit in false tripping even though the with toe main contacts on the X contactor and is Witch may operate since the thrust of too energized or d energized when these contacts are switch button 1 depended upon to move the cloned or opened respectively When the closing prop into position and hold it in place on solenoid la enerteized Its armature 14 is drawn breaker...

Page 19: ...olI T40NV or similar grade should be used in the cylinder 1 This device 1 mounted to a bracket on the right side of the operating mechanism looking from Hie front The purpose of this device in to trip toe breaker for imdervoltage For rated vottoge the armature k attracted by magnet 14 K the voltage falls below a predetermined value the magnet 14 releases toe armature 3 Spring 4 then pulls armature...

Page 20: ...ristics or combinations of those two For a description ox the operation and adjustments of the EC 2 device refer to bxslructlem Book GEI B021G i Each series overcurrent tripping device is enclosed in a molded case and mounted by three screws and a bracket to the lower part of the polo unit base device if the entire device is replaced simply remove hardware fastening the frame of the device to supp...

Page 21: ...by the calibration clamp nut 14 In order to reduce the possibility of damaging the equipment and to provide maximum safety to the operator the overload caused by a fault is removed In a minimum amount of time by selective tripping producing current which is lees than the short timo dolay pichaip are removed in a matter of a few seconds while currents in excess of this value are removed in a fracti...

Page 22: ...ft OUAWKO TIMS J t M MINIMUM M E GT TIME INSTANTANEOUS mNMJp V 0 JfciSW8 i A T 1 v X IM U x I nr I l y T V j am AWJU9TAflt fc IN ft MAXIMUM MtKAKfifl TIME in fAWORY AJO m 0 806 i IH IW HCK UP Pig 10 Cheoklitfl TrAvei Pi stance of Trip Ann on Berlcn Gvercurnw t Tripping Device T M f c t fT CURRENT IN TIMES BREAKER RATING flfl Typical Tl c Curr nt CharacterUtlc of fvOl Overtend PeYlce tv u BJEPI CEM...

Page 23: ...ausey the armature to rest against the Atop screw 0 attached to a bearing plate on the right elde of die device can If the current through the series coil 1 is reversed the armature 8 tends to nmo in the clockwise direction against the restraint of the calibration spring 3 When the current roversal exceeds the calibration setting the armature ro l volves clockwise causing the trip rod 2 to move y ...

Page 24: ... beat in or out accordingly Jtwn Whon the breaker is tripped by an overload tee overload ck vice trip arm 0 causes lever 7 hanger HI and hitch 12 to rotoite counterclock wise m a single member about pin 0 This disengages ted latch from the catch IP When tee breaker opens link 17 also releases tee catch allowing its spring to rotate it counterclockwise Aa with the umlervoltage device th only part a...

Page 25: ... in thereby look the hang neith 4 The latch 12 and the c uicjh 1 6 must be so posittojned relative to one another bum when the breaker is closed and reset the latch wilt ctaar the catch when the latch isrotated counterclockwise The catoh is mounted On the same supporting bracket as switch 1 Thin bracket may be shifted vertically by dtendvintlng the switch and loosening the h rdwm which fasten the ...

Page 26: ...top and bottom of tee case provides means of making any convenient arrangement desiTOd f o r tee entrance and exit erf line and load cables CM M c u t 1 Threaded hrRcew 2i Kscutehewu Mounting Angie 4 Mrwflir StT fK rtiuR Jr okel Sy i purtin Bmket Mounting Bait v 1 8 w Fig 3i tacr d PurpoM Eiio oulnfl Vi N di WEATHER RESISTING N4SLOSING CASE The weather resisting enclosing eaao la de signed for out...

Page 27: ...from the enclosing case proceed as follows 1 Trip the breaker by pushing the manual trip button If the breaker to not open the positive interlock lever 2 will prevent locking pin 4 from moyiiig upward and will thereby prevent withdrawal of the breaker Each dtoeonnoct coxuBlals of four contactfingera 2 Lift the rack out handle vertically This 3 secured UrOach breaker stud 7 by screw 1 operation unl...

Page 28: ...ire to about 1 4 ot b inch from end r7 Place new contact tip on end of wire and accurate pressure gage dimensions given will accurate in this instance SECONDARY DISCONNECTS FIG EC The flocou ry dieconnocto ee Fig 25 and 1 Fig 25 serve as connections ifetweeii breaker control circuit alemento and extanml control dr cults They are used only ondrawouttyp breakers A conventional terminal board serves ...

Page 29: ...uouji cur rent rating since the duty imposed to JntcrmiUent and quite variable depending upon various types of welding to be done The breakers are designed to safely carry durtafMrebl amperes or during weld KVA at welding periods not ertowedihg the corresponding duty cycle as tabulated below Iluty cycle to the per cent of time that current flows in any one minute W nro f I A 3 s x Mil I r I M M H ...

Page 30: ... 1BYI Breaker Volta AK 1 2BY1 Breaker Duty Cycle During weld IMy Cycle Durtafp yci wold Amp AUxp tais Dune irrr Tw IMUtVUjl 1030 837 S 1 3 40 000 1760 8226 1320 4 084 789 4 770 1540 1878 1020 1180 5 028 802 3180 680 1722 1000 6 280 475 0 004 mo Q 1258 1674 7 1000 220 560 580 7 1101 1453 0 20 936 41 610 8 1087 044 1300 884 104 888 480 2230 0 518 1026 1882 10 830 186 870 401 10 2815 487 074 1219 20 ...

Page 31: ...ciHat 2 1801 N l mar 8f Macon Oa P 0 Pan 1504 682 Cherry Si Tflccmo 1 Waatk P 0 Pox 1484 Oov fiport B fNiidflr f f 0 65 0 MwdUon 3 W1 c i 1 6 N Corrpll St 1216 Wmhlftfllflft BWp 1039 Slot St Month ter M H 87 fl St Tampa Pin P O BVR 3092 1206 North A St Ctaytan 2 Ohio 11 W Monument Bide Medford Ore P O Sox 1349 107 C Mplh Tnkdo 4 Ohio 420 AY Ooytan 9 Ohio Arin Ik EMf 2600 far Milk AY MatnphU 3 Tnrt...

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