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Содержание POWERMASTER AKD-5

Страница 1: ...oyUA INSTRUCTIONS SUPERSEDES GEI 839020 s A v i AKD 5 POWERMASTER I 1 f A sr LOW VOLTAGE DRAWOUT SWITCHGEAR i i I t SWITCHGEAR DEPARTMENT GENERAL ELECTRIC V PHILADELPHIA PA i y Courtesy of NationalSwitchgear com ...

Страница 2: ...ent Only Anchoring il m i X i ax Jp 8 INTRODUCTION 9 13 3 DESCRIPTION Front Enclosure Breaker Compartment Bus Compartment Feeder Cable and Bus Duct C o m p a r t m e n t Outdoor Equipment Drawout Mechanism Operation Interlocks 13 4 10 13 y 14 6 10 24 4 10 7 24 4 4 24 11 21 24 11 22 1 LOAD CENTER UNIT SUBSTATION AKD 5 LOW VOLTAGE SECTION SHIPPING PACKAGE TRANSFORMER LVPPRIMARY SECTION SHIPPING PACK...

Страница 3: ...mperes maximum AK 2A Power Circuit Breakers used in the equipmentare rated from 15 amperes to 4000 amperes The AKD 5 Low Voltage Drawout switchgear consists of one or more units mechanically and electrically joined to make a single coordinated equipment This equipment may consist of either free standing units or a complete load center unit substation A load center unit substation consists of an in...

Страница 4: ...d other this enclosure The breaker positions are protective devices and control components all of the drawout type The breakers are provided with self couplingprimary and secondary disconnecting contacts and in 4 Corporate positive and indirect interlocks The breaker is supported within its to insure proper operating sequence Each compartment by a rollout track which is of the individual units com...

Страница 5: ... LINK LINK CHAIN COVER OPERATING SHAFT JACK SHAFT INDICATOR POSITION CURRENT SWITCH TRANSFORMER SECONDARY DISCONNECTS CLOSE FUSES TRIP FUSES KIRK LOCK TRACK LOCK STOP LINK LINK OPERATING SHAFT JACK SHAFT INDICATOR CURRENT CHAIN COVER TRANSFORMER POSITION S S SWITCH AK 75 Compartment 5 1 Courtesy of NationalSwitchgear com ...

Страница 6: ...partments by barriers is provided At shipping splits or where The drawout mechanism is designed connections are to be made to other units with mechanical advantage for ease of A typical bus arrangement is shown or equipment during installation provision breaker insertion and withdrawal The with the rear barrier removed in Fig 0 is made for either making a field welded doors on the breaker compartm...

Страница 7: ... a weatherproof housing with a walk in front aisle Fig 8 Space heaters are provided in all outdoor equipments to keep the inside temperature a few degrees higher than that outside Thishelpsprevent CAUTION It is very important that the condensation and the resultant corrosion equipment beadequately ground which might otherwise occur The heaters v ed for safety The ground bus is bolted to the rear F...

Страница 8: ...d by personnel experienced in theproper handlingandpack ing of electrical equipment Upon receipt of any apparatus make an inspection im mediately for damage sustained while en route If injury is evident or indication of rough handling is visible file a claim for damage at once with the transportation company Notify the General Electric Company Apparatus Sales Office promptly Information on damaged...

Страница 9: ...oved into position should by means of construction rollers placed after it has been received and inspected X under the shipping skid Where overhead is too low the shipping skid may be re moved and the equipment moved by rollers location in an upright position It must be placed under the three channels under the properly supported to prevent bendingof the equipment studs or damage to any of the bre...

Страница 10: ... local codes such as mats screens provided to prevent the transmittal of should be given to installing conduits or railings etc is not furnished vibrations to the equipment sleeves which might be required for future connections The conduits shouldterminate LOCATION Suitable means must be provided by at the switchgear with the appropriate oon the purchaser for mounting and anchoring duit connectors...

Страница 11: ... for aluminum buses included in this book page 13 c Route and connect control cables between units at the shippingsplits Make the necessary connections by referring to the connection dia gram to determine what leads and how many are to be connected 4 If the switchgear is part of a load center unit substation make the neces sary bus connections to the transfor mer The ground connection bar in the b...

Страница 12: ...eaker bolts AK 2A 50 75 100 The closing mechanism of these break ers is similar to the AK 2A 15 25 XT o c KA To close the breaker IMPORTANT AK 25 and AK 50 4 breaker compartments designed for future 1 Rotate the operating handle counter use and certain other compartments will clockwise about 120 degrees until it have a red Insulating boot installed on the stops primary disconnectSr Remove these bo...

Страница 13: ... each equipment can vance of the actual installation These b Bolt the bus bar brackets together be used on the terminalconnection surfaces typical joints should be welded by the op using a bolt washer 2 and stop erators to be qualified under identical nut for each bus connection Refer Bolt the cable terminal connectors as conditions vertical welding positions and to Table A for proper torque requi...

Страница 14: ... it before welding the other side Breaker Operation Test Ail compartments housing all AK cir cuit breakers have a TEST position in contacts are which the breaker primary disconnected while the secondary contacts The extent of the tests onthe equipment are still engaged This TEST position as a whole will depend on the type and permits complete testing of the electrical function of the equipment Tes...

Страница 15: ... c o i N N CONNECTED T TT m J3E I r T E s T TEST U D K Q A t v D DISCONNECTED I s c JF K WITHDRAWN E i o 5 13 HARDWARE FOR ANCHORING P FLOOR PLATE CLEARANCE HOLE 4 ra xT IT nt Fig 3 4 0121C1508 0 Side View Of Breaker Stack 15 Courtesy of NationalSwitchgear com ...

Страница 16: ... PUATEfttAND 7 f RACK LOWER BREAKER COMPARTMENT l TODISCONNECT POSITION TO RECEIVE ANCHOR OUT6 t vl W 6 PADLOCK DEVICE WHEN FURN16HHD 1N LOWER COMPARTMENT see YI w EMOVE IAW 3 UPTIME PLATE NHOieT RA L iaTAPfe SPACER A L yr s A 1 JtL y i s SHIPPING PLTT SB FRONT TRNA 1 EAR DOOR NEUTRAL eu6 s iNW lSPLATB TO ONMOF THEUNIT ADJACENT TOT AUXILIARY UNIT es HE INSSSSOR X X JcXTpg IK 0 i w i r Y VIE SM P_ ...

Страница 17: ...ORMER FLANSE DQ ffeA BATTEN REMOVf BHIPRN4 1 BUPROST moCATB I V BPACftR PER VlBW C 1 II I TRANSFORMER CONDUCTOR Hsi smc M El1w fe iffe E 0 At 1 i i ri 1 LJ A SRQUNQ BUS PvfcE AUXILIARY UNIT CONDUCTOR BOLTED TYPE MAIN SOS JL PLICE PLATE v 3 HARDWARE LiF n34QVPLATE A ASSEMBLE PUlCG PLATES FRONT AND REAR REMOVE LIFTING PLATE 4 TVPIOAL TRANSFORMER CONNECTION I R OF CAP TRIMN ftOd CAP J RUDDER X GASKET...

Страница 18: ...Front Of proper Fig 17B 8035642 Open The Compartment Boor Rotate The Two Lock Links Compartment Operate PrawoutMechanism To Disconnect Position Raise Breaker TO About One inch Fig 17F 803564 1 Pull Both Tracks Out Completely Above Tracks 18 Courtesy of NationalSwitchgear com ...

Страница 19: ...ots 1 t v r V f 4 j V it f f 7 4 V _ _ r r i jf v u ft S 5 3 tf t a V CMK i C 6 0 V l vt is Y fe T f s TV i Ti f v v 1 fii 3 t M S ii i r v r o i r v J i a 1 aw Pig 1 JH 8035636 Push The Breaicer in Completely And Potato fl e Two Lock Links mose The Boor Pig 17G 8035635 Lower Tire Breaker Into The Track Slots Bemove The Hoist Cable f 19 i i Courtesy of NationalSwitchgear com ...

Страница 20: ... fei RB II 8K l V f J i i V n I JJ teu 1 1 i 9 Ls i i i V FE i r v gP s y 3 M M I 18 8035 31 Stairstep Arrangement Of Breakers In Connected Test Disconnected And Fully Withdrawn positions DRAWOUT MECHANISM VIEW OP fllOHTMANO SIDE A s Fig 19 N 0625D0375 0 Raokout Mechanism For AK 25 Breaker 20 a Courtesy of NationalSwitchgear com ...

Страница 21: ...eaker in the However the breaker cannot be rein The rackout mechanism is interlocked house The test position is reached when serted into the house far enough to engage so that the circuit breaker must be open the line on the indicator label marked the primary disconnects unless the stoplink before the operating handle can be inserted TEST is aligned with the stationary line 43 49 50 is retracted T...

Страница 22: ...ree in the connected po sition until the key is returned and the Kirk lock bolt is retracted 2 If desired the breaker may be moved to either the test or the disconnect position while the Kirk lock key is removed from the lock In these posi tions the breaker can be operated for checking or maintenance DOOR INTERLOCK For part numbers refer to Fig 23 A door Interlock which prevents open ing of the co...

Страница 23: ...rlock slide 40 48 When one to three padlocks are inserted into the slot in the plate the interlock slide cannot be retracted and the jackscrew cannot be turned The rackout mechanism can be locked anywhere in its travel It is necessary to open the compartment door in order to place the padlocks in the device but once the locks are secured there is no interference with the door and the door may be o...

Страница 24: ...hn 2 cup Blue 27 seconds Zahn 2 cup b Co Srr not use over a Since definite limits cannot be given for satisfactory insulation resistance values record must be kept of the readings Weakening of the insulation from one maintenance period tothe next can be recognized from the recorded readings The readings should be taken under similar conditions each time if possible and the record should Include th...

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