GPS travelling wave fault locator systems: Investigation into the anomalous measurements related to lightning strikes

Journal Article · Mon Jul 01 04:00:00 EDT 1996 · IEEE Transactions on Power Delivery

DOI:https://doi.org/10.1109/61.517474· OSTI ID:372207

Lee, H; Mousa, A M ^[1]

---

1. British Columbia Hydro, Burnaby, British Columbia (Canada)

A new fault location system based on the travelling wave principle and capable of locating faults on power lines to within {+-}one tower span (300m) has been successfully developed and applied to B.C. Hydro`s extensive 500 kV network. Unlike earlier schemes which are based on impedance measurements, its accuracy is not affected by load conditions, high grounding resistance and most notably series capacitor banks. This system measures the time of arrival of a fault-generated travelling wave at the line terminals using the precise timing signals from the Global Positioning System (GPS). Operating experience with the fault locator on lightning related faults indicated highly accurate results were obtained for the majority of the cases. In a few of the lightning-caused disturbances, the system gave anomalous measurements. This paper describes the operation of the system, summarizes the operating experience and explains the observed anomalous measurements.

• OSTI ID: 372207
• Report Number(s): CONF-950727--
• Journal Information: IEEE Transactions on Power Delivery, Journal Name: IEEE Transactions on Power Delivery Journal Issue: 3 Vol. 11; ISSN ITPDE5; ISSN 0885-8977
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
DETECTION
ELECTRICAL FAULTS
INTERCONNECTED POWER SYSTEMS
LIGHTNING
REPAIR