Circuit interrupting apparatus for use in direct current circuit

Details Circuit interrupting apparatus for use in direct current circuit Circuit interrupting apparatus for use in direct current circuit

1977-01-03

1978-08-29

Salce, Patrick R.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Arc suppression at switching point

307135, 323 89C, 323 89P, 336155, 336230, 361 11, H02H 722

Patent

active

041108060

ABSTRACT:
Circuit interrupting apparatus for interrupting large direct currents comprising a plurality of parallelly connected branch circuits each including a circuit breaker and a saturable reactor connected in series therewith, and a commutating circuit including a capacitor. When opening the circuit breakers the commutating circuit is connected across the branch circuits to pass commutating current in the direction opposite to the normal load current. When the current decreases below a predetermined value, the saturable reactors desaturate to efficiently interrupt the load current.

REFERENCES:
patent: 3390305 (1968-06-01), Greenwood
patent: 3467851 (1969-09-01), Dortort

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