Removal from Parallel Operation

TM 9-6115-663-13&P

NOTE

If the REVERSE POWER indicator on the FAULT INDICATOR PANEL of

either generator set lights, and the AC circuit interrupter relay opens, open the

load contactor at load and resynchronize the generator sets (Repeat the

necessary steps d through j above).

Compare AC AMPERES meter (9) readings of both generator sets. If readings are not within 10

percent, notify next higher level of maintenance.

Compare PERCENT POWER meter (10) readings of both generator sets. If readings are not

within 10 percent, notify next higher level of maintenance.

Close control panel access cover (7) and secure with clamping catch (8).

Perform the PMCS listed as DURING in table 2-2.

2-5.3.3 Removal from Parallel Operation.

WARNING

If necessary to move a generator set which has been operating in parallel

with another generator set, shut down remaining generator set connected to

the load, prior to removing load and ground cables. Failure to observe this

warning can result in injury or death by electrocution.

CAUTION

Prior to removal of generator set from parallel operation, make sure load

does not exceed full load rating of generator set remaining o n l i n e . F a i l u r e

to observe this caution can result in damage to generator set.

At the control panel of the generator set that is to be taken off line, position AC CIRCUIT INTER-

RUPTER switch (13) in the OPEN position until indicator (14) goes out.

Set UNIT-PARALLEL switch (16) to UNIT.

On the switch box place the ON LINE switch (3 or 6) for the operating generator set in the OFF

position. (At switch box, STATUS and ON LINE lights for the generator shut down should be off).

Rotate MASTER switch to OFF position.

At the control panel of the operating generator set, place the UNIT--PARALLEL switch at UNIT.

Perform the PMCS listed as AFTER in Table 2-2 for the generator set that was shut down.

2-5.3.4 Load Transfer Procedures (Sets connected for parallel operation).

One generator set (generator set 1) should already be on line and supplying power to the load.

For the generator set not running (generator set 2), perform the PMCS listed as BEFORE in

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