SR 4 GENERATOR
SYSTEMS OPERATION
REGULATOR GAIN CIRCUIT
Regulator gain is an adjustment to compensate for
voltage drop caused by generator load or governor
speed droop. A circuit to control regulator gain goes:
From spade terminal (7) of regulator module (A1)
through: wire (17) to regulator gain rheostat (R3).
From regulator gain rheostat (R3) through wire (18) to
spade terminal (8) on regulator module (A1).
There is a feedback circuit to regulator module (A1).
This circuit gives a voltage signal to regulator module
(A1). The signal changes at the same rate as the
voltage of exciter field (L3). The following circuit gives
the signal voltage.
From the cathode of controlled rectifier (CR9) to
terminal (11) on rectifier module (A2).
From terminal (11) through wire (11) to terminal (11)
of regulator module (A1).
The input received by the regulator module is used by
electrical circuits in the module to determine regulator
gain.
GENERATOR REGULATOR ASSEMBLY
A1
Regulator module
A2
Rectifier module
CR9
Controlled rectifier
R3
Regulator gain rheostat
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