Figure 2-16. Droop Parallel Operation (Sheet 2 of 2)

Figure 2-16. Droop Parallel Operation (Sheet 1 of 2)

Figure 2-17. Parallel Operation Connection Diagram.

TM-9-6115-604-12 Generator Set Diesel Engine Driven Tactical Skid Rtd. 60 Kw 3 Phase 4 Wire 120/208 and 240/416 Volts Manual
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ARMY TM 9-6115-604-12 NAVY NAVFC P-8-633-12 STEP 6. ON-LINE SET: SET GEN/BUS VOLTMETER SWITCH TO GEN 3-1. STEP 7. ON-LINE SET: ADJUST VOLT ADJ RHEOSTAT FOR AN AC KILOVOLTS READING OF 4 16 KILOVOLTS (FOR 60 HERTZ OPERATION) OR 3 8 KILOVOLTS (FOR 50 HERTZ OPERATION). STEP 8. ON-LINE SET: SET GEN/BUS VOLTMETER SWITCH TO GEN 2-3, THEN GEN 1-2. VERIFY THAT AC KILOVOLTS READING IS THE SAME AT ALL THREE SETTINGS. STEP 9. ON-LINE SET: SET PARALLEL SWITCH TO SINGLE SET. SINGLE SET INDICATOR WILL LIGHT. STEP 10. ON-LINE SET: SET BREAKER CONTROL SWITCH TO CLOSE. CLOSE INDICATOR WILL LIGHT. STEP 11. ON-LINE SET: SET PARALLEL SWITCH TO PARALLEL. PARALLEL INDICATOR WILL LIGHT. STEP 12. START ONE INCOMING GENERATOR SET (REFER TO Figure 2-13). STEP 13. INCOMING SET ADJUST FREQ ADJ RHEOSTAT FOR A FREQUENCY METER READING OF 50 HERTZ OR 60 HERTZ, AS APPLICABLE. STEP 14. INCOMING SET: SET GEN/BUS VOLTMETER SWITCH TO GEN 3-1. STEP 15. INCOMING SET ADJUST VOLT ADJ RHEOSTAT FOR AN AC KILOVOLTS READING OF 4 16 KILOVOLTS (FOR 60 HERTZ OPERATION) OR 3 8 KILOVOLTS (FOR 50 HERTZ OPERATION). STEP 16. INCOMING SET: SET GEN/BUS VOLTMETER SWITCH TO GEN 2-3, THEN GEN 1-2. VERIFY THAT AC KILOVOLTS READING IS THE SAME AT ALL THREE SETTINGS. STEP 17. INCOMING SET: CHECK PHASE SEQUENCE USING PHASE SEQ. SEL. SW. AND 1-2-3 AND 3-2-1 INDICATOR LIGHTS. ENSURE THAT SETS ARE IN PHASE BEFORE PROCEEDING STEP 18. INCOMING SET: SET PARALLEL SWITCH TO PARALLEL. PARALLEL INDICATOR WILL LIGHT. STEP 19. INCOMING SET: SET SYNCHROSCOPE SWITCH TO ON. SYNCHROSCOPE WILL BEGIN ROTATING AND SYNCHRONIZING LIGHTS WILL BEGIN BLINKING. STEP 20. INCOMING SET: ADJUST FREQ ADJ RHEOSTAT UNTIL SYNCHRONIZING LIGHTS ARE BLINKING VERY SLOWLY AND SYNCHROSCOPE NEEDLE IS ROTATING SLOWLY IN THE CLOCKWISE (FAST DIRECTION. STEP 21. INCOMING SET: ADJUST VOLT ADJ RHEOSTAT USING GEN/BUS VOLTMETER SWITCH AND AC KILOVOLTS METER UNTIL GEN AND BUS VOLTAGES ARE IDENTICAL. STEP 22. INCOMING SET: WHEN SYNCHRONIZING LIGHTS ARE DARK AND SYNCHROSCOPE NEEDLE IS IN 12 O'CLOCK POSITION, SET BREAKER CONTROL SWITCH TO CLOSE. CLOSED INDICATOR WILL LIGHT. STEP 23. INCOMING SET: SET SYNCHROSCOPE SWITCH TO OFF. STEP 24. ALL SETS: ADJUST VOLT ADJ AND FREQ ADJ RHEOSTATS TO BALANCE THE LOAD ON ALL SETS AS INDICATED BY THE KILOVARS AND AC KILOWATTS METERS. ADJUST VOLT ADJ TO EFFECT KILOVARS. ADJUST FREO ADJ TO EFFECT KILOWATTS. STEP 25. IF ADDITIONAL GENERATOR SETS ARE TO BE PARALLELED, REPEAT STEP 12 THROUGH STEP 24, ABOVE, FOR EACH SET. STEP 26. ALL SETS: ISOCHRONOUS WILL PICK UP LOAD CHANGES BEFORE BASE UNIT LOAD CHANGES WILL AFFECT VOLTAGE AND FREQUENCY OF DROOP-PARALLELED SETS EQUALLY. TO VARY FREQUENCY OR VOLTAGE OUT- PUT OF DROOP-PARALLELED SETS, ADJUST FREQ ADJ OR VOLT ADJ RHEOSTAT THE SAME WAY (INCREASE OR DECREASE) ON BOTH SETS. STEP 27. ALL SETS: PERIODICALLY (NOT LESS THAN ONCE PER HOUR) MONITOR ENGINE AND GENERATOR INDICATORS TO ENSURE CONTINUED OPERATION. STEP 28. ALL SETS: PERFORM DURING OPERATION" PREVENTIVE MAINTENANCE CHECKS AND SERVICES AS SPECIFIED IN Table 3-2. STEP 29. TO STOP UNIT REFER TO Figure 2-20. Figure 2-16. Droop Parallel Operation (Sheet 2 of 2) 2-33

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