TM 5-6115-400-12
STEP 1.
PLACE OPERATING UNIT IN SINGLE-UNIT
STEP 4.
OBSERVE VOLTMETER AND
FREQUENCY METER OF EACH UNIT FOR
OPERATION (FIG. 13)
PROPER READINGS.
STEP 2.
START INCOMING UNIT.
STEP 5.
OBSERVE SYNCHRONIZING LIGHTS OF
INCOMING UNIT. LIGHTS SHOULD GO
CAUTION
ON AND OFF SIMULTANEOUSLY.
IF
DO NOT CLOSE THE CIRCUIT
LIGHTS GO ON AND OFF ALTERNATELY,
BREAKER ON THE INCOMING UNIT
UNITS ARE OUT OF PHASE. STOP BOTH
AT THIS TIME.
SETS (PAR. 18), AND REVERSE ANY TWO
INTERCONNECTING
JUMPER
CABLE
STEP 3.
PLACE PARALLEL SWITCH OF EACH
LEADS AT TERMINALS L1, L2, OR L3 OF
UNIT IN THE UNIT PARALLEL POSITION.
INCOMING UNIT. DO NOT INTERCHANGE
THE LEAD AT LO TERMINAL. REPEAT
NOTE
STEPS 1 THROUGH 4.
SYNCHRONIZING
LIGHTS
OF
STEP 6.
ADJUST FREQUENCY CONTROL
INCOMING UNIT SHOULD LIGHT.
RHEOSTAT OF INCOMING UNIT UNTIL
SYNCHRONIZING
LIGHTS
OF
SYNCHRONIZING LIGHTS GO ON AND
OPERATING UNIT SHOULD REMAIN
OFF SLOWLY AT 2 TO 3 SECOND
OFF
INTERVALS.
STEP 7.
CAREFULLY OBSERVE FLUCTUATING
SYNCHRONIZING LIGHTS AND AT THE
INSTANT BOTH LIGHTS ARE DARK,
CLOSE THE CIRCUIT BREAKER OF THE
INCOMING UNIT.
THE GENERATOR
SETS
ARE
NOW
OPERATING
IN
PARALLEL.
CAUTION
DO NOT CLOSE THE CIRCUIT BREAKER OF THE INCOMING UNIT WHILE THE SYNCHRONIZING
LIGHTS ARE ON. DAMAGE TO ONE OR BOTH SETS MAY RESULT.
6115-400-12/2-10
Figure 2-10. Parallel operation.
2-15
