Control circuit for a contactor

Details Control circuit for a contactor Control circuit for a contactor

1978-03-30

1979-11-27

Miller, J. D.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

For relays or solenoids

361 22, 361194, 361205, H01H 4718, H01H 4732

Patent

active

041763882

ABSTRACT:
A control circuit is provided for a contactor which has a pair of contacts and an actuator coil which is energizable under the control of a switch to cause the contacts to close. The control circuit provides a temporary path for energizing the coil and a permanent path through the contacts. The control circuit delays energization of the coil for a preselected time to allow switch contact bounce to cease. The control circuit prevents a reestablishment of the temporary path for preselected time after the contacts close.

REFERENCES:
patent: 3017543 (1962-01-01), Hillman et al.
patent: 3558977 (1971-01-01), Beaudoin
patent: 3639808 (1972-02-01), Ritzlow
patent: 3660718 (1972-05-01), Pinckaers
patent: 3774082 (1973-11-01), Chang
patent: 3796061 (1974-03-01), Weihl
patent: 3950675 (1976-04-01), Weber et al.
patent: 4125885 (1978-11-01), Lowther et al.

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