Circuit breaker interrupter sequence monitor

Details Circuit breaker interrupter sequence monitor Circuit breaker interrupter sequence monitor

1992-11-20

1993-09-14

Wieder, Kenneth A.

Electricity: measuring and testing

Electromechanical switching device

Circuit breaker

324521, 324524, 361 44, 361 47, G01R 3102, G01R 3132

Patent

active

052452891

ABSTRACT:
The operation of energized substation circuit breakers in electrical power distribution systems is directly monitored. For each circuit breaker in a multi-phase breaker arrangement, the flow of electrical current is sensed. A signal is then formed for each phase representative of the sensed current flow. The signals so formed for the multi-phases are combined into a composite waveform for monitoring and diagnostic purposes. In the composite waveform, the signal for each phase of the circuit breaker is identifiable by its time relationship to others and by a distinctive voltage level.

REFERENCES:
patent: 2993202 (1961-07-01), Halonen
patent: 3699391 (1972-10-01), Eilts
patent: 4281316 (1981-07-01), Simon
Circuits & System Design, RTR-84 Circuit Breaker Response Recorder (8 pages), Jul. 1990.
Advertisement, Transmission & Distribution, Jun. 1990, p. 17.

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