Generator Single Phase; Circuit Breaker - Westerbeke 5.5 EGCD Operator's Manual

BC GENERATOR SINGLE PHASE
NOTE: WESTERBEKE recornrrzends that the following generator tests
and adjustments be peiformed by a qut:di.fied technician.
DESCRIPTION
The BC generator is a brushless, self-excited generator which
requires only the driving force of the engine to produce an
AC output. The stator houses two sets of windings; the main
stator windings and the exciter windings. When the generator
is started, residual magnetism in the four rotating poles
induces a current in the stator which then generates an even
larger current in the exciter windings. This mutual build up
of current in the four rotating poles and in the exciter ·
windings quickly reaches the saturation point of the
capacitor(s) and a regulated energy field is then maintained
in the stator. At the same time, this regulated field produces
a steady voltage in the stator windings which can _then be
drawn off the generator's AC terminals to operate AC
equipment. The generator is a single-phase, re-connectable
120 volt AC two-wire at 60 hertz, or 115 volt AC two-wire
or 230 volt AC two-wire at 50 hertz. Refer to the
SPECIFICATIONS section of this manual for generator
ratings. The generator's data plate gives the voltage, current
and frequency rating of the generator. An AC wiring decal is
affixed to the inside of the louvered cover at the generator
end. A diagram of the various AC voltage connections is
provided on the decal.
Circuit Breaker
A circuit breaker is
installed
on all single phase
WES1ERBEKE generators. This circuit breaker will
automatically disconnect generator power in case of an
electrical overload. The circuit breaker can be manually
shut off when servicing the generator to ensure that no
power is coming into the boat.
NOTE:
This circuit breaker is available as a WES'IERBEKE
add-on kit for earlier model generators; contact your
WESTERBEKE dealer.
60Hz - 5.0 KW Circuit Breaker Part Number 42705
50 Hz - 4.0 KW Circuit Breaker Part Number 42704
GENERATOR INTERNAL WIRING SCHEMATIC
A. ROTATING FJELD/AUXILIARY WINDINGS
WITH DIODES.
B. MAIN STATOR WINDINGS.
C. EXCITER WINDINGS AND CAPACITOR(S).
Engines
&
Generatqrs
37
AC TERMINALBLOCK
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CAPA~~TOR
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CA~A"ITOR
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DUAl EXCITER CIRCUIT -.