Power protection device

Details Power protection device Power protection device

2005-10-18

2005-10-18

Jackson, Stephen W (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Ground fault protection

Reexamination Certificate

active

06956726

ABSTRACT:
A power protection device includes a power source switching unit for shutting off the power supply from an AC power source according to an open control signal, a surge voltage protecting unit for outputting the open control signal when a surge voltage occurs, a leakage current protecting unit for outputting the open control signal when a leakage current occurs, and an over-current protecting unit for outputting an open control signal according to a current value when an over-current occurs. The power protection device provides the surge voltage protection, the leakage current protection and the over current protection at the same time.

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patent: 6288883 (2001-09-01), Chen
patent: 6577478 (2003-06-01), Kim et al.

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