Automatic circuit restoration device for polyphase feed lines

Details Automatic circuit restoration device for polyphase feed lines Automatic circuit restoration device for polyphase feed lines

1976-05-17

1978-01-10

Miller, J D

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

361 86, 335 20, H02H 324

Patent

active

040682803

ABSTRACT:
An automatic circuit restoration device for polyphase lines, comprising a set of normally open circuit breakers connected in series to respective feed lines and controlled in unison by one coil, and an auxiliary movable contact controlled by means responsive to the presence of voltage on one or more of the feed lines so that said movable contact is opened and said circuit breakers are closed through said coil when one of said feed lines is deenergized.

REFERENCES:
patent: 1314332 (1919-08-01), Jones
patent: 1800256 (1931-04-01), Keller
patent: 1809827 (1931-06-01), Bower
patent: 3546531 (1970-12-01), Miner
patent: 3922624 (1975-11-01), Basile

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