Anti-pump circuit breaker

Details Anti-pump circuit breaker Anti-pump circuit breaker

1978-02-14

1980-01-22

Hix, L. T.

Electrical transmission or interconnection systems

Switching systems

Switch actuation

307142, 361 72, 361114, 361115, H01H 7172

Patent

active

041852087

ABSTRACT:
The circuit breaker is taught with an anti-pumping control circuit. If the circuit breaker closes on a fault and quickly reopens without the closing switch being either mechanically or electrically released in the interim, reclosure of the circuit breaker either by an automatic reclosure or by the mere fact that the closing switch remains closed will be prevented until the closing switch is once again opened. In addition, if the closing switch is actuated prior to power being applied to the circuit breaker control system, the circuit breaker will not close when power is applied. The closing spring will be charged, however, for a subsequent circuit breaker closing after release and reactuation of the closing switch.

REFERENCES:
patent: 2735039 (1956-02-01), Schuh
patent: 2846621 (1958-08-01), Coggeshall
patent: 3644790 (1972-02-01), Kozlovic et al.
patent: 3818276 (1974-06-01), Jacobs

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