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BC GENERATOR SINGLE PHASE
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, reconnectable
120 volt AC two-wire at 60 hertz or 115 volt AC two-wire or
230 volt or 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. An Integral Controller (IC) is mounted
inside the generator and supplies a continuous DC charge to
the generators starting battery when the generator is running.
Circuit Breaker ( AC l
A circuit breaker is installed on all single phase
WESTERBEKE generators. This circuit breaker will auto-
matically 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 corning
into the boat.
r ------- --
1 30A FUSE
I
,
AC TERMINAL CONNECTIONS
1 4
L1
1 6
CIRCUIT
BREAKER
N
L1
2
ISOLATED
POST
(NEUTRAL)
4
ISOLATED
POST
5
120V/60Hz
N
3
230V/50Hz
NOTE:
Correctly position the case ground wire (white/green)
onto the neutraVground terminal.
INTEGRAL
CONTROLLER
ROTOR MNOl
fH
BATTERY CHARGING CIRCUIT
AMP FUSE
Located In the wiring
harness, rater
to
the
wiring diagram in
this manual.
STATOR WINDING
ROToR
~DWb
m
~- - : S t ~ - ~ ~ - 1 ~ - 0 R : - W I : : - f ) ; m N G
GENERATOR WINDINGS
-scHEMATIC
L 6
;f~
~t;f6
·
CAPACITOR
·cAPACITOR
24
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