ALTERNATOR CONTROL


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ALTERNATOR CONTROL
ALTERNATOR CONTROLUnlike dc generators, dc alternators require only two means of control, a voltage regulator and a current limiter. The reverse-current cutout relay is not needed, because the rectifier assembly will not allow current flow into the armature. The current limiter for most dc alternators is a simple circuit breaker. The circuit breaker is sized to match the alternator's output current and installed on the aircraft instrument panel. The voltage regulator may be a vibrating type, as discussed with regard to generators, or a transistorized unit. In either case, the voltage regulator controls alternator output by varying the alternator's input. Specifically, the voltage regulator increases the field circuit's resistance to decrease the alternator's output.…
Citation
Thomas K. Eismin: Aircraft Electricity and Electronics, Sixth Edition. ALTERNATOR CONTROL, Chapter (McGraw-Hill Professional, 2014), AccessEngineering Export