Circuit breaker counter indicator

Details Circuit breaker counter indicator Circuit breaker counter indicator

1994-11-23

1996-05-14

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

361114, H02H 300

Patent

active

055173810

ABSTRACT:
A counter indicator for circuit breakers maintaining a running count of the number of times that a circuit breaker has been tripped and providing a visual indication of a tripped condition. The counter indicator employs time delay circuitry so as to allow the circuit breaker to be switched manually for purposes of testing without registering a tripped condition. A two stage binary coded decimal counter visually displays the amount of counts that the breaker has been tripped or alternatively when a switch handle has been placed in an intermediate position. The device is powered by an independent battery source providing a continuous power supply to maintain memory and power to a visual display only upon detection of a tripped circuit.

REFERENCES:
patent: 4056816 (1977-11-01), Guim
patent: 4611201 (1986-09-01), Guim
patent: 4633240 (1986-12-01), Guim
patent: 4969063 (1990-11-01), Scott et al.
patent: 4977513 (1990-12-01), Lapalme
patent: 5051731 (1991-09-01), Guim
patent: 5179290 (1993-01-01), Page
patent: 5220479 (1993-06-01), Fraisse

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