Circuit breaker

Details Circuit breaker Circuit breaker

1987-10-27

1989-08-01

Hix, L. T.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

361104, 337156, H02H 316

Patent

active

048538221

ABSTRACT:
A circuit breaker for an electric device has a pair of switching pieces, an electric circuit for supplying electric power to the device, an arrangement for opening the electric circuit, an arrangement for locking the switching pieces to normally close the electric circuit, a drive connected in parallel with the power source via a gate for releasing the locking arrangement, and a terminal piece located in the device and connected to the electric circuit by a cord. The cord picks up leakage current in the device to turn the gate on by the leakage current when the device becomes immersed in water. The turning on of the gate effects the release of the locking arrangement, so that the switching pieces open the electric circuit.

REFERENCES:
patent: 4589047 (1986-05-01), Gaus et al.
patent: 4751603 (1988-07-01), Kwan

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