Circuit Breaker - Westerbeke 7.6 EGTD Operator's Manual

Marine diesel generators
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BT GENERATOR SINGLE PHASE
DESCRIPDON
This generator is a
four~pole,
brushless,
self~xcited
generator
which requires only ·the driving force of
the
engine to pro-
duceAC output. The copt)er and laminated iron in the exciter
stator
are
responsible for
the
self~xciting
feature of this gen-
-erator. The magnetic field produced causes an
AC
voltage to
be
induced into the related exciter rotor windings during rota-
tion.Diodes located in the exciter rotor rectify this voltage to
DC
and supply
it
to
the
windings of the rotating field.
This ·
creates an electromagnetic field which rotates through.
the
windings of the main stator. fnducing
an·
AC
voltage w'b,ich
is
supplied to a load
A
:step
down
transformer
is
connected
parallel .. t:Q
:the AC
output of the main stator. An
AC
voltage is
protlticoo
in. the auxiliary windings of the
transformet:
and the
main stator and
is,
in turn, supplied to a full-wave bridge
rec-
tifier. The rectifier produces a
DC
voltage to further
excite
the exciter stator windings, enabling th-e generator to produce
. a rated AC output.
·
1~STUD
TERMINAL BLOCK
· Circuit Breaker
A
circuit
breaker
is installed on
all
WESTERBEKE
genera-
tors. This ch-cUit breaker will automatically disconnect gener-
ator
power in case of an electrical overload. The circuit .
breaker can
be
manually shut off when servicing the genera-
tor to ensure no
AC
power
is
coming froui-the generator to
the vessel.
CIRCUIT BREAKER
WHITEN
BT SINGLE PHASE (12 STUD)
1..,...,./WESTERBEKE
Engines & Generators
.
38

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5. 7 egtd

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