Solid state circuit breaker

Details Solid state circuit breaker Solid state circuit breaker

1995-04-14

1997-02-25

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

361 57, 361101, H02H 900

Patent

active

056064829

ABSTRACT:
A solid state circuit breaker which provides high voltage isolation between a control circuit and a power source is described. The circuit breaker comprises a receiver for providing a control signal in response to a transmitter that is electrically isolated from the receiver, a solid state switch that closes in response to the control signal thereby allowing a load current to flow through the switch, a current sensor for measuring the load current, and an inhibit circuit responsive to the current sensor for inhibiting the control signal when the load current exceeds a predetermined magnitude thereby opening the switch without adjusting the transmitter. After opening the switch, the inhibit circuit is responsive to the transmitter for allowing the control signal thereby closing the switch.

REFERENCES:
patent: 4477747 (1984-10-01), Wakai
patent: 4581540 (1986-04-01), Guajardo
patent: 4924344 (1990-05-01), Guajardo

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