TM 9-6115-662-13&P
d.
Refer to paragraph 2-5.3.1 (steps c. through i.), to start a generator set and bring it on line.
e.
On operating generator set (generator set 1) position UNIT-PARALLEL switch (16) to PARALLEL.
f.
Start generator set 2 and adjust voltage and frequency to match generator set 1.
g.
At switch box, set generator set 2 ON-OFF switch (3 or 6) to ON (Switch box STATUS & ON-LINE
lights for both generators should be lit).
h.
At generator set 2 control panel:
(1) Set UNIT-PARALLEL switch (16) to PARALLEL. Both SYNCHRONIZING LIGHTS (12)
should be going bright to dark together.
CAUTION
If SYNCHRONIZING LIGHTS on generator set 2 do not go bright and
dark in unison, the phasing is wrong. Shut down generator sets and
check that load cables are connected properly. Failure to observe this
caution can result in damage to generator sets.
(2) Increase frequency until SYNCHRONIZING LIGHTS (12) blink together one or more times per
second.
(3) Decrease frequency until SYNCHRONIZING LIGHTS (12) blink together once every 3-4
seconds.
CAUTION
Check that load contactor at load is open before attempting to place
generators on line. Failure to observe this caution can result in damage
to generator sets.
(4) When both SYNCHRONIZING LIGHTS (12) are dark, position and hold AC CIRCUIT INTER-
RUPTER switch (13) of generator set 2 in the CLOSED position until indicator light (14) goes
out. SYNCHRONIZING LIGHTS (12) should go out (both generators are now operating in
parallel with no load).
i.
Rotate FREQUENCY adjust potentiometer (15) of generator set 1 until percent power meter (10)
reads approximately “O”.
j.
Rotate VOLTAGE adjust potentiometer (11) of generator set 1 until AC AMPERES meter (9) reads
approximately “O”.
k.
Close the load contactor at the load.
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