Main field current transient control circuit for dynamoelectric

Details Main field current transient control circuit for dynamoelectric Main field current transient control circuit for dynamoelectric

1976-08-23

1979-05-22

Hickey, Robert J.

Electricity: single generator systems

Generator control

With excitation winding and/or circuit control

318716, 322 69, 361 21, H02K 1900, H02P 150

Patent

active

041561724

ABSTRACT:
In a synchronous generator-motor, having both its main armature windings and exciter winding located on the stator and both the main field winding and the exciter armature windings including a rectifier for providing DC current to the main field located on the rotor and also including a voltage regulator responsive to the main armature voltage for regulating the current applied to the exciter field; the effects of transient currents in the main field windings resulting from load removal during the generator mode of operation and the voltages induced during motor start-up are substantially reduced by utilizing a resistive circuit operatively controlled by a transistor switching network that is in turn responsive to the exciter voltage and the induced voltage in the main field windings.

REFERENCES:
patent: 3314001 (1967-04-01), Brockman
patent: 3350613 (1967-10-01), Brockman et al.
patent: 3582736 (1971-06-01), Geib, Jr.
patent: 3599236 (1971-08-01), Hutchins
patent: 3843921 (1974-10-01), Hill

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