Title :
Signatures and software find high impedance faults
Author_Institution :
GE Technol. Center, Malvern, PA, USA
fDate :
7/1/1995 12:00:00 AM
Abstract :
The detection of high-impedance faults on electrical distribution systems has been one of the most persistent and difficult problems facing the electric utility industry. High-impedance faults result from the unwanted contact of a primary circuit conductor with objects or surfaces that limit the current to levels below the detection thresholds of conventional protection devices. The author describes how recent advances in digital technology have enabled a practical solution for the detection of a high percentage of these previously undetectable faults
Keywords :
computerised monitoring; distribution networks; electricity supply industry; fault location; power system measurement; computerised measurements; detection thresholds; digital technology; distribution systems; electric utility industry; high-impedance fault detection; primary circuit conductor; signatures; software; Electrical fault detection; Fault currents; Frequency; Impedance; Power system faults; Power system harmonics; Power system modeling; Power system reliability; Power system security; Signal processing algorithms;
Journal_Title :
Computer Applications in Power, IEEE
