Commutating type DC circuit breaker arrangement

Details Commutating type DC circuit breaker arrangement Commutating type DC circuit breaker arrangement

1993-02-16

1995-03-28

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Arc suppression at switching point

361 1, H02H 300

Patent

active

054022975

ABSTRACT:
A commutating type DC circuit breaker arrangement comprising: a vacuum circuit breaker having a movable electrode and stationary electrode; a series circuit of a capacitor, a saturation reactor and a commutating switch which is connected in parallel with the vacuum circuit breaker; and an electrical relay for detecting a predetermined electrode open position at which a sufficient insulating distance between the movable electrode and the stationary electrode is maintained via movement of a predetermined position on an actuating rod for the movable electrode and for closing the commutating switch in response to the detection of the predetermined electrode open position.

REFERENCES:
patent: 3708718 (1973-01-01), Hoffmann et al.
patent: 4056836 (1977-11-01), Knauer

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