JAMES D FINLEY
Engineers in Monroeville, PA
License number
Pennsylvania PE014884L
Category
Engineers
Type
Professional Engineer
Address
Address
Monroeville, PA 15146
Professional information
Anti-Pump Circuit Breaker
US Patent:
4185208, Jan 22, 1980
Filed:
Feb 14, 1978
Appl. No.:
5/877780
Inventors:
James W. McMillen - Wilkins Township, Allegheny County PA
James D. Finley - Monroeville PA
James D. Finley - Monroeville PA
Assignee:
Westinghouse Electric Corp. - Pittsburgh PA
International Classification:
H01H 7172
US Classification:
307140
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.