j. Rotate the VOLTAGE adjust potentiometer of gen-
erator set No. 1 until ammeter (PERCENT RATED
CURRENT) reads approximately “O”.
k. Close the load contactor at the load.
NOTE
If the REVERSE POWER indicator of either
generator set lights, and the AC Circuit Inter-
rupter relay opens, open the load contactor at
load and desynchronize the generator sets. (Re-
peat the necessary steps d through k above.)
1. Compare ammeter (PERCENT RATED CUR-
RENT) readings of both generator sets. If readings
are not within 10 percent, notify next higher level of
maintenance.
m. Compare kilowattmeter (PERCENT POWER)
readings of both generator sets. If readings are not
within 10 percent, notify next higher level of main-
tenance.
2-10.4 Removal from Parallel Operation.
ARMY TM 9-6115-644-10
AIR FORCE TO 35C2-3-446-11
MARINE CORPS TM 09249A/09246A-10/1
If necessary to move a generator set which has
been operating in parallel with another genera-
tor set, shut down remaining generator set con-
nected to the load, prior to removing load
cables or ground. Failure to observe this warn-
ing can result in injury or death by electrocu-
tion.
Prior to removal of generator set from parallel
operation, make sure load does not exceed full
load rating of generator set remaining on the
line. Failure to observe this caution can result
in damage to generator set.
a. Position AC CIRCUIT INTERRUPTER switch to
OPEN until indicator goes out.
b. Return UNIT-PARALLEL switch to UNIT posi-
tion.
Change 1 2-27
