SECTION 2:
SYSTEM OPERATION
A.
EACH ENGINE CAN BE OPERATED AT THE SWITCH BOARD OR AT THE ENGINE.
1.
TO START AT THE SWITCH BOARD, PLACE THE ENGINE CONTROL SWITCH (ECS) IN THE START
POSITION. THE ENGINE WILL AUTOMATICALLY CRANK TO RUN.
2.
TO START AT THE ENGINE, PLACE THE ENGINE CONTROL SWITCH (ECS) IN THE ’REMOTE’
POSITION. THEN OPERATE THE START SWITCH ON THE ENGINE AND IT WILL AUTOMATICALLY
CRANK TO RUN.
3.
IN BOTH MODES OF OPERATION THE ENGINE WILL SHUT DOWN AND A FAILURE LIGHT ON THE
SWITCH BOARD WILL LIGHT FOR ANY OF THE FOUR FAILURES (REVERSE POWER, OVER SPEED,
LOW OIL PRESSURE, HIGH WATER TEMPERATURE.)
4.
THE ENGINE CAN BE STOPPED AT THE SWITCH BOARD BY PLACING THE ENGINE CONTROL
SWITCH IN THE OFF (RESET) POSITION, NO MATTER WHERE IT WAS STARTED FROM.
5.
WHEN THE EMERGENCY STOP PUSH BUTTON ON THE ENGINE IS USED TO STOP THE ENGINE,
BE AWARE THAT RESETTING THE BUTTON WILL CAUSE THE ENGINE TO IMMEDIATELY START
CRANKING TO RUN AGAIN UNLESS THE ENGINE CONTROL SWITCH IS RETURNED TO THE OFF
POSITION.
6.
THE VOLTAGE REGULATOR ’IDLE-RUN’ SWITCH MUST BE USED WHEN OPERATING THE ENGINE
AT IDLE SPEEDS FOR WARM-UP OR MAINTENANCE TESTS.
7.
VOLTAGE ADJUSTMENT CAN BE MADE BY ADJUSTING THE VOLTAGE RHEOSTAT WHILE
OBSERVING THE VOLTMETER. THE VOLTAGE LEVEL SHOULD BE THE SAME ON ALL PHASES.
8.
FREQUENCY ADJUSTMENTS CAN BE MADE BY ADJUSTING THE GOVERNOR SPEED SWITCH
WHILE OBSERVING THE FREQUENCY METER.
9.
THE GOVERNOR SPEED SWITCH CAN ALSO BE USED TO BALANCE LOADS BETWEEN ENGINES
WHEN OPERATION IN PARALLEL. THIS IS ACCOMPLISHED BY THE AMMETERS AND ADJUSTING
THEIR RESPECTIVE GOVERNOR SPEED SWITCHES (’RAISE’ WILL INCREASE THE LOAD AND
’LOWER’ WILL DECREASE TIE LOAD.)
10.
THE VOLTMETER SWITCH ON GENERATOR NUMBERS ONE AND TWO WILL ALSO READ ONE
PHASE OF THE LOAD BUS. THE VOLTMETER SWITCH ON GENERATOR NUMBER THREE WILL
ALSO READ ONE PHASE OF SHORE POWER.
B.
EACH GENERATOR IS SET UP TO OPERATE IN PARALLEL BY ANY SCHEME OF MANUAL
SYNCHRONIZATION. (ALL DISTRIBUTIONS LOAD BREAKERS SHOULD BE CLOSED.)
1.
START THE FIRST GENERATOR AND CLOSE ITS BREAKER TO THE BUS.
2.
ADJUST THE VOLTAGE AND FREQUENCY FOR THE DESIRED LOAD.
3.
START THE SECOND GENERATOR AND ADJUST ITS VOLTAGE AND FREQUENCY TO MATCH THE
BUS BY OBSERVING THE BUS VOLTMETER AND BUS FREQUENCY METER.
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