Apparatus and method for relay control

Details Apparatus and method for relay control Apparatus and method for relay control

1988-06-28

1990-01-30

Jennings, Derek S.

Electricity: electrical systems and devices

Safety and protection of systems and devices

361160, 361173, 307117, H02H 300

Patent

active

048977551

ABSTRACT:
Where there is a relay controlling an AC power circuit to a load, the apparatus of this disclosure includes a sensor for observing arc at the relay contacts and a control circuit which controls the time of subsequent actuation or deactuation of the relay with respect to the alternating current power circuit so as to eliminate relay contact arcing.

REFERENCES:
patent: 4011499 (1977-03-01), Betsill et al.
patent: 4051394 (1977-09-01), Ticden

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