Saturable reactor apparatus for automatic control of power facto

Details Saturable reactor apparatus for automatic control of power facto Saturable reactor apparatus for automatic control of power facto

1989-06-06

1990-04-03

Beha, Jr., William H.

Electricity: power supply or regulation systems

For reactive power control

Using saturable inductor

318729, 323251, G05F 170

Patent

active

049143751

ABSTRACT:
An automatic power factor control apparatus for an inductive load such as an AC induction motor includes a circuit for producing a signal varying in accordance with the load power factor, which is applied to control the duty cycle with which switching elements are alternately set in the conducting and non-conducting states by high frequency switching operation. A level of voltage applied to the control winding of a saturable reactor connected in series with the load is controlled by the switching elements, and the saturable reactor thereby continuously controls the input voltage and load current of the inductive load in accordance with the power factor.

REFERENCES:
patent: 4647837 (1987-03-01), Stemmler

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