PAGE 12
5.
PLACE THE GENERATOR SELECTOR SWITCH (GSS) TO THE POSITION OF THE INCOMING GENERATOR.
THE SYNCHROSCOPE WILL INDICATE IF THE INCOMING GENERATOR IS RUNNING FASTER OR
SLOWER THEN THE GENERATOR ON THE BUS BY THE DIRECTION OF ROTATION AND SPEED OF THE
NEEDLE. BOTH GENERATORS ARE IN SYNCHRONIZATION WHEN THE NEEDLE ON THE
SYNCHROSCOPE IS POINTING STRAIGHT UP. BEFORE CLOSING THE INCOMING GENERATOR'S
BREAKER BE SURE THE SYNCHCOSCOPE NEEDLE IS PASSING VERY SLOWLY THROUGH
SYNCHRONIZATION OR EVEN STOPPED, THEN CLOSE THE BREAKER. ADJUST THE GENERATOR TO
PICK UP LOAD BY INCREASING THE GOVERNOR SPEED SWITCH SLOWLY.
6.
WHEN CHANGING FROM ONE GENERATOR TO ANOTHER WITHOUT INTERRUPTING THE LOAD,
SYNCHRONIZE THE GENERATOR'S THE SAME AS IN PARAGRAPH FIVE EXCEPT; ADJUST THE
INCOMING GENERATOR TO ACCEPT LOAD AND THE OUTGOING GENERATOR GO TO DROP LOAD
WHILE IN PARALLEL. THIS IS ACCOMPLISHED BY INCREASING THE GOVERNOR SPEED ON THE
INCOMING GENERATOR AND DECREASING THE GOVERNOR SPEED ON THE OUTGOING GENERATOR.
WHEN THE LOAD IS NEAR ZERO ON THE OUTGOING GENERATOR OPEN IT'S BREAKER.
C. THE SHORE POWER WILL BE USED ONLY WHEN THE GENERATOR BREAKERS ARE OFF.
1.
WHEN THE SHORE POWER BREAKER IS CLOSED IT IS NOT POSSIBLE TO CLOSE A GENERATOR
BREAKER.
2.
THE SHORE POWER BREAKER WILL NOT CLOSE IF THE PHASE IS NOT IN PROPER SEQUENCE OR THE
VOLTAGE IS BELOW NORMAL. THE PHASE SEQUENCE LIGHTS INDICATE THE SHORE POWER PHASE
ROTATION.
3.
THE SHORE POWER BREAKER WILL NOT CLOSE IF ANY GENERATOR BREAKER IS CLOSED FIRST.
D. GROUND DETECTION LIGHTS.
1.
THE GOUND DETECTION LIGHTS BURN BRIGHT WHEN THE BUS IS LIVE. WHEN THE TEST PUSH
BUTTON IS DEPRESSED THE LIGHTS SHOULD REMAIN UNCHANGED. IF THERE IS A GROUND OR
PARTIAL GROUND ON ANY PHASE ITS RESPECTIVE LIGHT SHOULD GO OUT OR BURN DIM WHEN THE
TEST PUSH BUTTON IS PRESSED.
