发明名称 |
Self testing ground fault circuit interrupter (GFCI) with end of life (EOL) detection that rejects false EOL information |
摘要 |
A self test (ST) ground fault circuit interrupter (GFCI) provides improved end of life (EOL) detection by rejecting false EOL information. A processing device receives fault detection signals indicating when faults are detected, and input signals indicating when contacts used to interrupt power to a load are closed. The processing device rejects the fault detection signals when they fail to meet a selected condition and the contacts are closed, and declares end of life (EOL) when the selected condition is met. The fault detection signals can correspond to pulses at an output of a gated device between the processing device and a GFCI chip, and the selected condition can be a selected integer number of pulses.
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申请公布号 |
US2010238597(A1) |
申请公布日期 |
2010.09.23 |
申请号 |
US20100801269 |
申请日期 |
2010.06.01 |
申请人 |
BALDWIN JOHN R;FANZUTTI ROBERT;YU DAMING |
发明人 |
BALDWIN JOHN R.;FANZUTTI ROBERT;YU DAMING |
分类号 |
H02H9/08 |
主分类号 |
H02H9/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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