SR 4 GENERATORSYSTEMS OPERATIONREGULATOR GAIN CIRCUITRegulator gain is an adjustment to compensate forvoltage drop caused by generator load or governorspeed 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) tospade 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 thevoltage of exciter field (L3). The following circuit givesthe signal voltage.From the cathode of controlled rectifier (CR9) toterminal (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 byelectrical circuits in the module to determine regulatorgain.GENERATOR REGULATOR ASSEMBLYA1Regulator moduleA2 Rectifier moduleCR9 Controlled rectifierR3 Regulator gain rheostat38
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