Electricity: single generator systems – Automatic control of generator or driving means – Plural conditions
Patent
1979-04-05
1980-11-11
Hickey, Robert J.
Electricity: single generator systems
Automatic control of generator or driving means
Plural conditions
322 63, 322 90, 307 16, H02P 910
Patent
active
042335558
ABSTRACT:
The stator windings of a dynamo electric machine include three phase and single phase output windings for generating alternating current output power at different voltages. The machine output voltage is kept relatively constant by means of a brushless exciter having control and compounding field windings which are energized through stationary rectifier circuits. The rectifier circuit for energizing the field windings of the exciter is connected to or near the neutral leads of the stator windings to maintain a low voltage between the diodes of the rectifier and ground. The energization of the compounding field winding is controlled by means of a variable resistor in dependence upon whether the load connected to the dynamo electric machine is supplied with single phase or three phase current. Alternatively, the output current from the three phase windings can be full wave rectified and the output current from the single phase windings can be half wave rectified to adjust the energization of the compounding field winding.
REFERENCES:
patent: 3012186 (1961-12-01), Wasko
patent: 3034035 (1962-05-01), Baumann et al.
patent: 3238439 (1966-03-01), Hobbs et al.
patent: 3267353 (1966-08-01), Franklin
patent: 4117388 (1978-09-01), Roche
Dyna Technology, Inc.
Hickey Robert J.
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