ARMY TM 9-6115-672-14
AIR FORCE TO 35C2-3-444-32
MARINE CORPS TM 09244A/09245A-14
2-35
e. Remove paralleling cable from storage box, and close BATTERY ACCESS door (Figure 1-2).
f.
Connect paralleling cable between the two generators sets. Connect the generator sets to the load
observing proper phase sequence. Check connections with phase rotation meter (Appendix B).
CAUTION
Do not close the AC CIRCUIT INTERRUPT switch on either of the
generator sets, nor close the load contactor at load, until specifically
directed to do so. Closing any of these devices at any other time may
severely damage one or both of the generator sets.
2.12.3 Operation.
a. Start each generator set. Refer to paragraph 2.11.1.
b. Use keypad arrow buttons to move cursor to DISPLAY MODE on CIM display screen. If necessary,
use SELECT button to access FULL mode screen.
c. Use VOLTAGE ADJUST switch (8, Figure 2-8) to obtain the same voltage indication on each set.
d. Use FREQUENCY ADJUST switch (7) to obtain approximately the same frequency indication on both
sets. Observe CONTACTOR POSITION on CIM display screen to ensure load contactor at load is
open.
e. Momentarily hold AC CIRCUIT INTERRUPT switch (15) on generator set No. 1 in CLOSED position
until CONTACTOR POSITION reads CLOSED.
CAUTION
Check CONTACTOR POSITION indication on CIM display screen to
ensure load contactor at load is OPEN before attempting to place
generators on the line. Failure to comply can cause damage to generator
sets.
f.
Momentarily hold AC CIRCUIT INTERRUPT switch (15) on generator set No. 2 in CLOSED position
until CONTACTOR POSITION on CIM display screen reads CLOSED.
NOTE
The generator sets are now operating in parallel with no load.
g. Check that POWER gage on CIM display screen indicates approximately zero.
h. Close the load contactor at the load.
i.
Check that GEN CURRENT indicators (Figure 2-11) on CIM display screens of both generator sets
display approximately the same amperage. If not, adjust VOLTAGE ADJUST switch (8, Figure 2-8)
up or down to achieve proper reading.
j.
Compare POWER Meter readings from CIM display screens on both generator sets. If readings are not
within 10 percent, remove from parallel operation at once (paragraph 2.12.4) and notify next higher
level of maintenance.
