Apparatus for supplementing commercial power subject to brownout

Details Apparatus for supplementing commercial power subject to brownout Apparatus for supplementing commercial power subject to brownout

1976-11-09

1978-03-28

Schaefer, Robert K.

Electrical transmission or interconnection systems

Plural supply circuits or sources

Substitute or emergency source

307 77, 323111, H02J 900

Patent

active

040816923

ABSTRACT:
A power source for supplementing commercial ac power in cases of sustained brownouts or blackouts is achieved with an alternator connected to augment the power of a commercial ac source, a first circuit for sensing the voltage level required of the alternator and for controlling the field drive of the alternator to produce the required voltage level, a second circuit for determining the frequency and phase of the voltage generated by the alternator, and apparatus for driving the alternator at the angular frequency and spatial angle dictated by the second circuit.

REFERENCES:
patent: 2783393 (1957-02-01), Lindahl et al.
patent: 4038559 (1977-07-01), Chun et al.

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