Electricity: single generator systems – Automatic control of generator or driving means – Plural conditions
Patent
1979-03-23
1981-04-28
Hickey, Robert J.
Electricity: single generator systems
Automatic control of generator or driving means
Plural conditions
322 27, 322 86, 361 20, H02P 900, H02H 706
Patent
active
042648564
ABSTRACT:
In a generating system having a shunt-type regulator for exciting the field of a generator during normal operating conditions, circuitry is provided for supplying voltage to a field winding to maintain excitation of the generator during excessive output current conditions. This circuitry senses the low voltage indicative of a fault or overload condition and in response boosts the field of the field winding during such an excessive output current condition an amount sufficient to maintain generator excitation during that particular condition. It does this by impressing a voltage, supplemental to that supplied by the regulator, upon the field winding during the condition. As a result the excitation of the generator is maintained.
REFERENCES:
patent: 2454582 (1948-11-01), Thompson et al.
patent: 3314000 (1967-04-01), Rosenberg et al.
patent: 3316479 (1967-04-01), Frierdich
patent: 3548258 (1970-12-01), Ricker
patent: 3564391 (1971-02-01), Dinger
patent: 3619761 (1971-11-01), Nagae et al.
patent: 3634750 (1972-01-01), Bobo
patent: 3899731 (1975-08-01), Smith
Frierdich Waldo J.
Kappel Thomas F.
Basler Electric Company
Hickey Robert J.
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