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Fault‐locating method using harmonic components of the arc‐voltage waveform
Author(s) -
Okazaki Masayuki,
Inaba Tsuginori
Publication year - 1993
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.4391130304
Subject(s) - fault (geology) , waveform , voltage , electrical impedance , harmonic , engineering , electric power transmission , electrical engineering , line (geometry) , transmission line , arc (geometry) , fault indicator , electronic engineering , acoustics , fault detection and isolation , mathematics , physics , geology , mechanical engineering , geometry , actuator , seismology
This paper describes a new type of the fault‐locating method by using voltage and current values measured in a substation or transmission lines. This method is based on the impedance method and consists of the following items: (1) analysis of harmonic components in voltage waveforms measured in the substation; (2) estimation of the arc fault voltage on the lines; (3) calculation of the line impedance voltage drop; and (4) determination of the fault‐locating distance. The availability of this method was confirmed by arc fault tests on 6‐kV cable and overhead distribution lines. As a result, the fault‐locating error of this method was proved to be roughly less than 10 percent.