FEDERAL PIONEER H-2, Instructions For The Care And Maintenance

Page 1: ...C 3 221 1 SEPTEMBER 1979 INSTRUCTIONS FOR THE CARE AND MAINTENANCE OF v H 2 AND HL 2 CIRCUIT BREAKERS 759 5651 Courtesy of store ips us...

Page 2: ...m Latching and Trip Shaft Adjustment Spring DischargeInterlock Shunt Trip UnderVoltageTripTypes A B Shunt Close Closing Spring Charging Motor Motor Closing Spring Limit Switch Latch Check Switch Conta...

Page 3: ...TH consult Instruction Manual C 3 211 1 dated March 1976 For breakers with serial numbers T consult Instruction Manual C 3 414 dated August 1966 C Before placing in service read this instruction man...

Page 4: ...t 41 Moving arcingcontact 42 Fixed arcing contact 43 Jumper 44 Load terminal 45 Basemoulding 46 Trip flipper 47 Trip coil assembly 48 Lower channel 49 Finger spacer 50 Clamp assembly BASIC BREAKER TYP...

Page 5: ...i i i i i X 2ZZ 22 4 9 r y 4 ZZZ7 r i Ti i ilK Tr I ii s Cf M K 0 J 4 V 4 K vo o V tl Q 0 o o 2 3 I I O K I i i i 11 i i i i i i i I 3 ISU i I 9 i ii i R Ii i w i gp i i V O i j FIGURE 1 Page 3 Courte...

Page 6: ...ng where applicable should be made in strict accordance with detailed wiring diagrams Wiring connections which are made to terminal blocks should be run in a supported and protected manner so control...

Page 7: ...9 The electrical operation of drawout breakers should bechecked in the test position V FIGURE 2 A FACEPLATE FOR MANUALLY OPERATED 10 14 LEGEND 13 1 On off indicator 2 Front plate 3 Floating trim 4 Sp...

Page 8: ...bove A removable handle is provided to permit manual charging of the spring A mechanical close button similar to that on the manually operated unit is not included Emergency operation of the close rel...

Page 9: ...E3 LUBRICATION ELECTRICALLY OPERATED LINKAGE X Oil SAE 30 Y Grease Lubriplate FIXED ARCING CONTACT FACEPLATE MAIN MOVING CONTACT TI MAIN FIXED CONTACTS w iL_J O MANUAL TRIP Page 7 Courtesy of store ip...

Page 10: ...t com pletion of the charging of the spring Referring to Figure 6 the adjustment procedure is as follows The ratchet wheel assembly Item 1 is made up of two plates riveted together The two plates are...

Page 11: ...Motor 7 Auxiliary switch 8 Spring limit switch 9 Spring guide pin 10 Solid state overcurrent relay 11 Antisingle phase device 10 FIGURE 6 CLOSE LATCH ADJUSTMENT k 1 32 iN l 8 mm 1 Ratchet wheel assem...

Page 12: ...To make the observation described below the red flash shield hood and arc chutes should be remov ed and safety precautions will require that the unit be de energized during this operation With referen...

Page 13: ...arrangement requires no adjustment Depressing the drawout lever activates the closing latch which discharges the main spring This action results in failure to close but discharge of the main spring Wh...

Page 14: ...r rod adjustment should be checked The shunt trip is identified on the wiring diagram by the symbol TC Both units can be installed on one breaker With regard to use the following rules are usually adh...

Page 15: ...uit breakers and consists of a rec tangular laminated solenoid frame similar to the Type A shunt trip device It is mounted within the front mechanism compartment and its function is that of actuating...

Page 16: ...firmly FIGURE15 SPRING LIMIT SWITCH o o 2 H i 1 rs I I FlfF 7 64 IN 2 8 mm A H i JM s S U 3 1 Pivot screw 2 Lockscrew 3 Lever actuator LATCH CHECK SWITCH Fig 16 The latch check switch is provided on e...

Page 17: ...the main upper fixed contact This is done by removing the stationary arcing contacts Shims are available from the manufacturer Part Number 241A 500 Contact differential should always be checked befor...

Page 18: ...ghtened before closing the unit in the nor mal manner A supply of shims is included with the gauges ARCING CONTACTS Arcing contacts are subjected to pitting every time the circuit breaker interrupts c...

Page 19: ...Si mm FIGURE 19 SLOW CLOSE DEVICE 1 Closing shaft lever 2 Slow close device 3 Feeler gauge FIGURE 20 MOVING CONTACT DEFLECTION DEFLECTION GAUGE MOVING CONTACT ASSEMBLY Page 17 Courtesy of store ips us...

Page 20: ...FIGURE 21 SLOW CLOSE DEVICE 1 Moving contactin open position 2 Moving contact in closed position 3 Deflection gauge Page 18 Courtesy of store ips us...

Page 21: ...TO Stt 9 o PICKUP T T 5G L T 1 2 M L H E ARC CHUTE HOOD The hood is provided to restrict ionized gases from direct access to the steel enclosure and in addition carries interphase barriers The hood fi...

Page 22: ...peres In applications wherea control supply voltage in excess of 250 is to be used the higher voltage contacts are double spaced i e the adjoining contact is unused Cell switches can be provided when...

Page 23: ...uired If the unit is going to be used for frequent load switching then the parts shown on the recommended spare parts list should be carried in stock When ordering spare parts please provide complete...

Page 24: ...AC 30 5 2 45 0 34 125DC 2 2 560 0 2 3120 250DC 08 0 1 30 5 120AC 2 45 0 34 NO VOLT TRIP 312 0 250DC 08 0 1 240 14 0 28 ANTI SINGLE PHASE TRIP 480 50 0 1 8 50 0 600 2 3 CHARGING MOTOR 48V DC 7 AMPS 120...