Development of an Accurate Transmission Line Fault Locator Using the Global Positioning System Satellites

Harry Lee

Abstract:	A highly accurate transmission line fault locator based on the traveling-wave principle has been developed and successfully operated within B.C. Hydro. A transmission tine fault produces a fast-risetime traveling wave at the fault point which propagates along the transmission line. This fault locator system consists of traveling wave detectors located at key substations which detect and time tag the leading edge of the fault-generated traveling wave as it passes through. A master station gathers the time-tagged information from the remote detectors and determines the location of the fault. Precise time is a key element to the success of this system. This fault locator system derives its timing from the Global Positioning System (GPS) satellites. System tests confirmed the accuracy of locating faults to within the design objective of k 300 meters.
Published in:	Proceedings of the 25th Annual Precise Time and Time Interval Systems and Applications Meeting November 29 - 2, 1993 Ritz-Carlton Hotel Marina Del Rey, California
Pages:	197 - 204
Cite this article:	Lee, Harry, "Development of an Accurate Transmission Line Fault Locator Using the Global Positioning System Satellites," Proceedings of the 25th Annual Precise Time and Time Interval Systems and Applications Meeting, Marina Del Rey, California, November 1993, pp. 197-204.
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