Load tap change monitoring system and method
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United States of America Patent
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Jan 15, 2008
Grant Date -
N/A
app pub date -
Nov 18, 2004
filing date -
Nov 20, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A system and method for remotely monitoring load tap changes on utility-type equipment are disclosed. In one example embodiment, a sensor measures a voltage before a tap change and compares the measured voltage to a voltage after the tap change. From this information, the direction of the tap change and the distance traveled can be determined. The system and method can also include a timer to measure an elapsed time required to complete a particular tap change and use this time information to determine the distance traveled. The direction of the tap change can be determined from a sensor that triggers the timer. The system and method thereby enable efficient and cost-effective remote monitoring of load tap changes and positions.
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