Fault interrupter using microcontroller for fault sensing and automatic self-testing
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United States of America Patent
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Oct 19, 2004
Grant Date -
N/A
app pub date -
Nov 28, 2000
filing date -
Nov 28, 2000
priority date (Note) -
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Abstract
A fault interrupter having a microcontroller is provided to detect actual faults. The fault interrupter initiates a periodic self-test and provides external notification to the user upon successful or unsuccessful completion of the test. The fault interrupter generates the test signal at a selected time to substantially coincide with the zero-crossing of the AC power source. A manual test can also be performed using a manual test switch provided as a direct input to the microcontroller.
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