STEP 1.
THE SET IN OPERATION SHALL BE DESIGNATED AS ON-LINE AND THE SETS PLACED
IN PARALLEL OPERATION SHALL BE DESIGNATED ON-COMING.
STEP 2.
PLACE THE OPERATIONS SWITCH (FIGURE 2-5) ON BOTH SETS IN THE PARALLEL OPER-
ATION POSITION.
CAUTION
DO NOT CLOSE THE CIRCUIT BREAKER SWITCH AFTER STARTING THE
ON-COMING SET AS SERIOUS DAMAGE TO ONE OR BOTH GENERATOR
SETS MAY RESULT.
STEP 3.
REFER TO FIGURE 2-6 AND 2-7 (DO NOT PERFORM STEP 8 OF FIGURE 2-7), AND START
THE ON-COMING SET.
STEP 4.
NOTE THE VOLTAGE INDICATED ON THE ON-LINE SET.
ADJUST THE VOLTAGE OF THE
ON-COMING SET TO THE VOLTAGE NOTED ON THE ON-LINE SET.
STEP 5.
ADJUST THE FREQUENCY OF THE ON-COMING SET TO A HIGHER VALUE THAN THAT OF
THE ON-LINE SET.
STEP 6.
SLOWLY REDUCE
LIGHTS FLASH AT 2 TO 3
THE FREQUENCY OF THE ON-COMING SET UNTIL THE
SECOND INTERVALS.
SYNCHRONIZING
CAUTION
DO NOT PLACE THE CIRCUIT BREAKER SWITCH OF THE ON-COMING
SET IN THE CLOSE POSITION WHILE THE SYNCHRONIZING LIGHTS ARE
LIT AS DAMAGE TO ONE OR BOTH GENERATOR SETS MAY RESULT.
STEP 7.
CAREFULLY WATCH THE SYNCHRONIZING LIGHTS OF THE ON-COMING SET.
AT THE
INSTANT BOTH LIGHTS GO DARK, MOVE THE CIRCUIT BREAKER SWITCH OF THE ON-COMING
TO THE CLOSE POSITION.
STEP 8.
ADJUST THE VOLTAGE AND FREQUENCY RHEOSTATS OF BOTH SETS UNTIL LOAD AND
RENT ARE DIVIDED EQUALLY BETWEEN THE TWO GENERATOR SETS,AS EXPLAINED IN FIGURE
2-10.1, PARAGRAPH A, STEPS 7 AND 8.
SET
CUR-
STEP 9.
MOVE THE CIRCUIT BREAKER SWITCH OF THE ON-LINE SET TO THE OPEN POSITION.
STEP 10. PLACE THE OPERATIONS SWITCH OF THE ON-COMING SET TO THE SINGLE UNIT OPER-
ATION POSITION.
STEP 11. READJUST VOLTAGE AND FREQUENCY OF THE ON-COMING SET AS NECESSARY.
STEP 12. REFER TO FIGURE 2-8 AND STOP THE ON-LINE SET.
Figure 2-10.1. Parallel Operation of Tactical Utility Generator Sets
(Load Sharing and Load Transfer) (Sheet 4 of 4)
Change 12
2-26.7/(2-26.8 blank)