Saturable core reactor responsive to short circuit conditions in

Details Saturable core reactor responsive to short circuit conditions in Saturable core reactor responsive to short circuit conditions in

1993-03-16

1995-03-21

Sterrett, Jeffrey L.

Electric power conversion systems

Current conversion

Including automatic or integral protection means

363 92, H02H 7125

Patent

active

054002389

ABSTRACT:
A short circuit current limiting reactor is disclosed having a series pass inductor wound on a core. A saturation control circuit is employed to control the magnetic saturation of the core. Under normal operating conditions, the core is in magnetic saturation thus making the reactance of the inductor negligible and allowing an AC current to flow freely through the inductor. Upon the occurrence of a short circuit fault, the saturation control circuit brings the core out of its magnetically saturated state thereby causing the reactance of the inductor to rise and limiting the amount of current flowing through the inductor.

REFERENCES:
patent: 3117271 (1964-01-01), Timmermans et al.
patent: 3122694 (1964-02-01), Muchnick et al.
patent: 3219918 (1965-11-01), Trench
patent: 4031457 (1977-06-01), Oberbeck
patent: 4152637 (1979-05-01), Oberbeck et al.

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