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GE AK-50 Series, Инструкция по техническому обслуживанию

GE AK-50 Серия предлагает подробное руководство по техническому обслуживанию. Скачайте бесплатный инструкцию по эксплуатации с нашего веб-сайта. Этот ручной режим поможет вам правильно обслуживать ваш продукт, чтобы он работал на максимуме своих возможностей. Скачайте его с manualshive.com.

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Содержание AK-50 Series

Страница 1: ...8A GEH 1799 GEH 1823 GEl 5021OA GEI 50211 GEI 50212A GEI 57077 GEl 74600 Types AK 50 75 100 AKT 50 AKU 50 and AKF 2C 2D 2E NOTE To be used in conjunction with GEl 86135 which covers Types AK 75 100 br...

Страница 2: ...LOCKOUT DEVICE DIRECT ACTING TRIPPING DEVICE EC 1B SERIES OVERCURRENT TRIPPING DEVICE EC 1 SERIES OVERCURRENT TRIPPING DEVICE EC 2 EC 2A REVERSE CURRENT TRIPPING DEVICE AK 50 ONLY POWER SENSOR TRIP SE...

Страница 3: ...F z i oo o L TRIP COIL X M LEGEND CLOSING MOTOR RELAY COIL RELAY CONTACT FftG MECHANICALLY OPERATED SWITCHES NORMALLY OPEN SWITCH CONTACTS NORMALLY CLOSED SWITCH CONTACTS L AUXILIARY SWITCH CONTACT X...

Страница 4: ...and the closing operation takes place QUICK CLOSE FOR ELECTRICAL BREAKERS Functionally the quick close mechanism differs from the standard electrical mechanism in thatthe pre charge operation is exten...

Страница 5: ...tinue to operate the maintenance handle clos ing the breaker This is done so that the safety pin takes the spring force To install the safety pin of the manual stored energy mechanism refer to the sec...

Страница 6: ...p device False Tripping AK 2 Breakers Overcurrent pick up too low Overcurrent time setting too short Bind in overcurrent trip device Tighten Thumb Screw on Desired Setting Captive Thumb Screw on Power...

Страница 7: ...D50H15 Sliding silver plated con tact surfaces should be lubricated with G E Lub ricant D50H47 Hardened grease and dirt should be removed from latch and bearing surfaces by using kerosene ALL EXCESS L...

Страница 8: ...nut and withdraw stud 1 6 Remove cap 2 The side 3 and pocket 4 barriers should be free 7 Reassemble and replace the arc quencher in the reverse order Tighten the fastenings after replacement POLE UNIT...

Страница 9: ...ave the main contacts and pivot with them about pin 19 This relative motion is obtained by linkages from the upper pin 7 to the breaker mechanism The stationary main contact assembly includes main and...

Страница 10: ...ted on TABLE I refer to the section of these instructions dealing with ADJUSTING CONTACT WIPE AND PRESSURE ADJUSTING CONTACT WIPE AND PRESSURE Fig 6 1 To obtain proper contact wipe and pressure on the...

Страница 11: ...maintenance handle with the safety pin restraining the closing springs REPLACEMENT OF CONTACTS Fig 6 Stationary Arcing Contacts 2 Fig 6 0 Fig 7 1 Remove the upper plate by removing two screws 1 On th...

Страница 12: ...arcing contacts 4 should be replaced when the stationary arcing contacts are replaced scribed above 2 Remove screws 27 and remove bracket which holds pin 25 in place 3 Remove main and intermediate co...

Страница 13: ...Fig 10 which rides on the closing cam 2 Fig 11 closing cam roller is shown in Fig 11A 11B and 11C center pole unit through a clevis and through a crossbar it controls the opening and closing of the co...

Страница 14: ...spring and charging mechanism 3 As the crank turns the roller pushes the paddle arm upward thereby charging the closing springs through the spring charging arm 15 of the crank shaft 4 As the charging...

Страница 15: ...latch 10 to release the latch prop 5 This allows the forces of the contact and opening springs to reposition the operating mechanism linkage to the position shown in Fig 11A In this position the oper...

Страница 16: ...iffers from the standard breaker in that the precharging operation is extended to and slightly past the top dead center position of the closing spring assembly As the springs start to discharge to clo...

Страница 17: ...etween screw and lever with clearance on release arm taken up by pressing lever lightly forward Adjust switchette operation by adding washers F under cotter pin so that contact is made when armature i...

Страница 18: ...4 Safety Pin Hole 5 Closing Springs 6 Guide Rod 7 Pawl Springs 8 Front Escutcheon 9 Front Bearing Plate 10 Bearing Plate Mounting Bolts 31 Lower Spring Pin 11 Output Crank Roller 12 Thrust Bearing 13...

Страница 19: ...9 Remove the roll the closing handle shaft 23 to be removed 10 Remove the ratchet wheel 17 and its assembly 16 by removing Nylok screw 15 and thrust bearing 12 If shims 13 are present they must also b...

Страница 20: ...ements 3 Operate closing mechanism with mainten ance handle until arcing contacts of outer poles just touch 4 Measure distance between forward edge of left stationary contact of center pole and surfac...

Страница 21: ...t 15 c Remove vertical shims 14 to decrease wipe add to increase d Replace bolt 15 and tighten screw 13 e Reassemble front and back frame Adjusting Center pole Open Contact Gap Fig 17 Improper open co...

Страница 22: ...gs and with a bell set across the a terminals of the auxiliary switch The closing of the a contacts can be ad vanced or retarded by extending or reducing the external length of the operating rod 5 The...

Страница 23: ...s to auxiliary switch 2 Remove mounting bolts 2 and 7 3 Withdraw auxiliary switch 4 Insert new switch with arrowonshaftpoint ing up and towards the back of the breaker as in Fig 18 5 Replace mounting...

Страница 24: ...vice coil circuit is con tinuously rated and will remain picked up as long as the voltage remains above the predetermined drop out voltage The time delay is field ad justable between 1 and 5 seconds i...

Страница 25: ...VOLTAGE TRIPPING DEVICE The instantaneousundervotage device is mounted in the same location and manner as thestatic time delay device and its construction is similar The adjustments and replacement o...

Страница 26: ...Fig 26 The long time delay armature 22 is restrained by the long time delay calibration spring 15 After the magnetic force produced by the over current condition overcomes this restraint the velocity...

Страница 27: ...nt device is cali brated at the factory the air gaps between magnet 11 and armatures 1 and 22 are set These gaps are measured at their widest point between the front edge of the armature and magnet Th...

Страница 28: ...ment screw 7 is provided so that the short time mechanism will pick up the trip link 8 at the same point at which it is picked up by the long time mechanism This may be checked before the device is mo...

Страница 29: ...bracket to the lower part of the pole unit base NOTE In lieu of locknuts some devices are equipped with self locking nylon insert nuts REPLACEMENT Fig 27 1 Remove front frame see SEPARATION OF FRONT...

Страница 30: ...device when parts are worn or damaged Component parts of any overcurrent 5 Replace new device in reverse order n j 6 GENERAL ELECTRIC iliiiv ovi tjt isi rwnwc MVKI Vm EC 2 0 17513 66 2 SO CYCLES 70 AM...

Страница 31: ...rrent Usually expressed in times the ampere rating of the trip coil The variation in pick up setting is accomplished by varying the tensile force on the instantaneous spring 5 Turning the adjustment s...

Страница 32: ...ll be necessary to replace the trip paddles on the trip shaft with ones which are slightly longer When required these will be provided with the replacement trip units The top edge of the movable nut 1...

Страница 33: ...e The new device will be factory adjusted so that the top end of the trip rod 3 will extend 1 2 in above the top of the device case and no addi tional adjustments of the trip rod should be required To...

Страница 34: ...the leads to the tripping solenoid be removed to completely eliminate the possibility of the breaker tripping Do not close breaker with power on the main contacts while the disconnect plug to the mag...

Страница 35: ...components is faulty and in need of replacement If continuity does not now REPLACEMENT OF POWER SENSOR COMPONENTS Power Sensor Unit Fig 35 Loosen screw connecting the unit to the 1 front frame 2 Slid...

Страница 36: ...i m JtT 4 S UNO _ 1111 I I Sir U sr Ur 4 101 MlOfHx 1W l v OF JK 5 Fig 34 8039648 Power Supply 1 Indicator Terminal Block Capacitor 4 Female Disconnect Plug 5 Male Disconnect Plug 6 Mounting Brackets...

Страница 37: ...by alternately loosening two retaining screws 5 Remove Power Supply Unit with control wiring 3 i 4 3 WIRE A I 6R0UND 1 SENSOR IB 4 W I R E A 1 OlSBBZ43 c it j t i T t3WEL0 R V 4 It i I I i i I l I SU...

Страница 38: ...AD A evrau ir I I5 FD f IV 1 a I L 1 2 3 4 S I POWER SENSOR COIL I 0 a i U i 41 K 3 KE5 43 ui I N H 0 bLK Ju2 X r 47 W 0 r i i 7 h f T I I 0 4IZ l 2 I 2 5 SI U i i X 4j J D el 5 5 L4 1 BR A Ee 1 OUTUN...

Страница 39: ...d in a minimum amount of time by selec tive tripping Overloads producing current up to five or ten times the breaker rating are removed in a matter of a few cycles while currents in excess of this val...

Страница 40: ...a M n i issi 2 5X J J J ps 7 r 4 iox 0 4 1OX J L ZL n 4 1OX 1 J T Max X 5i 3 J A s s 7 2 y 7 J Z ZV iCli s v s s w P Int K Maximum Total Claarinf Tima AK 15 AK 50 AIMS AK 75 AK 100 S J S J 2xS s V S 0...

Страница 41: ...50 Z 8 4 M X s Ul I M n 10 I 7 4 S 1 1 J J 7 M J 4 J J 2 M 2 o o 1 S 1 w s 09 07 1 00 X 09 05 04 03 03 02 02 11 U J 7 0 1 1 3 4 0 7 no 2 3 4 0 7 0 lo J 0 7 4 TT 2 4 1 0 7 0 0 10 j I 7 I t 1 Li 0 7 0...

Страница 42: ...assembly and the stud of the enclosure the disconnect fingers exert a set amount of force against the stationary stud through the action of the compression springs Retainers and spacers hold the cont...

Страница 43: ...ith the breaker The drawout mechanism is equipped with a drawout trip interlock which prevents a racking operation from being performed when the breaker is closed Inserting the breaker into the housin...

Страница 44: ...l the trip lever is bent in or out accordingly REPLACEMENT OF COIL Fig 45 1 Disconnect leads to coil 7 2 Remove magnet 6 and coil from frame 4 Remove coil and install new coil in re verse order BELL A...

Страница 45: ...the breaker in the trip free position until it is released by operation of the manual reset button lO The coil 6 is de energized as soon as the breaker is tripped open The 3 The lockout adjusting scr...

Страница 46: ...move coil Install new coil and replace parts in reverse order Re I REPLACEMENT If it becomes necessary to replace coil 6 proceed as follows Remove five bolts connecting the device to the side plate an...

Страница 47: ...ameplate data of the breaker should be given Screwdrivers Phillips No 1 Phillips No 2 8 in shank Phillips No 3 Long thin slotted screw Standard slotted screw Short shank slotted screw Offset ratchet s...

Страница 48: ...r information call or write your local General Electric Sales Office or General Electric Company 41 Woodford Avenue Plainville CT 06062 U S A ELECTRIC GENERAL GEK 7303C 1086 PSC Courtesy of NationalSw...

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