TM 9-6115-662-13&P
POWER PLANT OPERATING PROCEDURES
BEFORE OPERATION
1. CHECK/SERVICE BOTH GEN SETS BEFORE OPERATION. CONNECT "GND" TERMINAL TO GROUND.
CONNECT CONTACTOR POWER CABLE.
INDICATOR LIGHTS
1. STATUS LIGHT, INDICATES LINE BETWEEN GEN AND SW BOX IS HOT.
2. ON LINE LIGHT, INDICATES SWITCH BOX CONTACTOR IS CLOSED FOR INDICATED GEN.
OPERATING PROCEDURES
1. START EITHER GEN. ADJUST VOLTAGE AND FREQUENCY.
2. PUT GEN “CKT INTRPT SWITCH” IN “CLOSED” POSITION. (SWITCH BOX “STATUS” LIGHT SHOULD LIGHT.)
3. AT SWITCH BOX, SET “ON-OFF” SWITCH TO “ON”. (“ON LINE” LIGHT SHOULD LIGHT.)
LOAD TRANSFER PROCEDURES (SETS CONNECTED FOR PARALLEL OPERATION PER TM)
1. ON “OPERATING” GEN, (GEN NO. 1) SET “UNIT-PARALLEL” SWITCH TO “PARALLEL”.
2. START GEN NO. 2. ADJUST VOLTAGE AND FREQUENCY TO MATCH GEN NO. 1.
3. AT SW BOX, SET GEN NO. 2 “ON-OFF” SWITCH TO “ON”. (“ON LINE” AND “STATUS” LIGHTS SHOULD LIGHT.)
4. AT GEN NO. 2, SET “UNIT-PARALLEL” SWITCH TO “PARALLEL”. BOTH “SYNCHRONIZING” LIGHTS SHOULD
BE GOING BRIGHT TO DARK TOGETHER.
5. INCREASE FREQUENCY UNTIL “SYNCHRONIZING” LIGHTS BLINK TOGETHER ONE OR MORE TIMES PER SECOND.
6. DECREASE FREQUENCY UNTIL LIGHTS BLINK TOGETHER ONCE EVERY 3-4 SECONDS.
7. WHEN LIGHTS ARE DARK, SET GEN NO. 2 “CKT INTRPT SWITCH” TO “CLOSE”. GEN CONTACTOR LIGHT
SHOULD LIGHT AND “SYNCHRONIZING” LIGHTS SHOULD GO OUT.
8. AT GEN NO. 1, SET “CKT INTRPT SWITCH” TO “OPEN”, SET “UNIT-PARALLEL” SWITCH TO “UNIT”.
TURN “MASTER” SWITCH TO “STOP”. (AT SWITCH BOX, “ON LINE” AND “STATUS” LIGHTS FOR GEN NO. 1
SHOULD GO OFF.)
9. AT GEN NO. 2, SET “UNIT-PARALLEL” SWITCH TO “UNIT”.
Figure 2-14. Power Plant Instruction Plate.
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