Fault detection device with line-load miswire protection
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United States of America Patent
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-
Sep 30, 2003
Grant Date -
N/A
app pub date -
Mar 5, 2001
filing date -
Mar 6, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A protection device connected between hot and neutral conductors of an AC power line includes a fault detection circuit which controls a breaker coil operatively associated with a set of interrupting contacts. A capacitance circuit connected between the hot conductor and the neutral conductor stores a charge of a polarity indicative of a line-load miswire. This stored charge independently activates the set of interrupting contacts when the interrupting contacts are closed and the device is miswired, thus preventing the miswired device from providing power.
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