Electronic circuit for identifying circuit breaker associated wi

Details Electronic circuit for identifying circuit breaker associated wi Electronic circuit for identifying circuit breaker associated wi

1998-05-29

2000-11-28

Brown, Glenn W.

Electricity: measuring and testing

Electromechanical switching device

Circuit breaker

324520, 324 66, G01R 31327, H02H 300

Patent

active

061540323

ABSTRACT:
A system for locating the particular circuit breaker associated with a branch circuit. The system includes a transmitter is connected to the hot lead of the branch circuit to inject a signal having a predetermined frequency. The system further includes identification circuits permanently associated with each circuit breaker. The identification circuit includes an indicator powered by a rectifier connected to the hot lead of the associated branch circuit. A band pass filter within the identification circuit passes the predetermined frequency, which when present biases the gate of a controlled switch which is placed in series with the indicator lamp such that when the predetermined frequency is present on the hot lead the indicator lamp is turned on. Each identification circuit may also include a low pass filter connected in series between the hot lead of the branch circuit and the bus so as to block the predetermined frequency signal from being distributed via the bus bar into the identifying circuits associated with other branch circuits. In one embodiment, the identification circuit and circuit breaker are enclosed within a single enclosure, which may further include a socket for simplified connection to at least the hot lead and bus bar.

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Wottrich, "Self Identifying Circuit Breaker", p. 20, date unknown.

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