Upstream/downstream arc fault discriminator
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United States of America Patent
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-
Jan 17, 2006
Grant Date -
N/A
app pub date -
Nov 14, 2001
filing date -
Nov 14, 2000
priority date (Note) -
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status (Latency Note)
Importance
Abstract
An arc fault protection device protects a branch circuit portion of an electrical distribution system. The branch circuit is connected to a load. A first sensor detects fluctuations in load current, while a second sensor detects fluctuations in line voltage. The polarities of the fluctuations are compared, and the comparison indicates whether an arc signature, potentially indicative of an arc fault, is located in the branch circuit portion or located in a remainder of the electrical distribution system.
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