Be Generator - Westerbeke 7.0KW BCG-60HERTZ Operator's Manual

A
BC GENERATOR (60-50 HERTZ)
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.
Governor Internal Wiring Schematic
with
DC
Battery Charging Circuit
A. Rotating Field! Auxiliary
Windings with Diodes
C. Single Exciter Winding and Capacitors
B. Main Stataor Windings
D. Bridge Rectifier and Integral
Controller
E. Dual Exiter Windings and Capacitors.
D
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Generator Frequency
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Frequency is a direct result of engine/generator
speed:
1800 rpm-60 hertz, 1500 rpm - 50 hertz. To
change the generator's frequency, refer to the "MAINlENANCE AND ADJUSTIvlENTS" section of this
manual.
51
Westerbeke Generators