Westerbeke 10.0 EGTD Operator's Manual page 37

BT GENERATOR
This generator is a four-pole; brushless, self-excited generator
which requires only the driving force of the engine to pro-
duce AC output. The copper and laminated iron in
the
exciter
stator are responsible for the self -exciting 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
excite~
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, inducing an AC :voltage which is
supplied
to
a load. A step down transformer is connected in
parallel to the AC output of
the
main stator. An AC voltage is ·
produced in
the
auxiliary windings of the transformer 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 the generator to produce
a rated AC output. An optional solid-state voltage regulator is
available to work in tandem with the transformer regulator to
produce a more stable AC output
AC TERMINAL BOARD
AC
TERMINAl
BOARD
(12STUD)
31
A circuit breaker is installed on all WESTERBEKE genera-
top. This circuit
b~er
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 power is coming intO the boat.
NOTE: This circuit brea.ker
is
available as a WESTERBEKE
add-on kit for earlier model generations; contact your
WESTERBEKE.dealer. .
BT GENERATOR
SINGLE PHASE
(&STUD)
COMPOUND
TRANSFORMER