Load tap change monitoring system and method

Details Load tap change monitoring system and method Load tap change monitoring system and method

2008-01-15

2008-01-15

Laxton, Gary L (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a transformer or inductor as the final control device

C323S341000

Reexamination Certificate

active

07319309

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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Predictive Power, Taptracker, see www.predictivepower.com/products.htm.

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