Add-on ground fault module
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United States of America Patent
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-
Jan 30, 1990
Issued Date -
N/A
app pub date -
Feb 22, 1989
filing date -
Jan 30, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An add on ground fault detection system including a module readily connected to the distribution line and to the associated circuit breaker, and including circuit means for sensing a metering signal while providing a low resistance burden to summing transformers, and providing a relay tripping signal if the metering signal is above a selected level.
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Family
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Cited Art Landscape
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