Conference Paper

Fault indicators in transmission and distribution systems

Dept. of Electron. & Electr. Eng., Bath Univ.
DOI: 10.1109/DRPT.2000.855670 Conference: Electric Utility Deregulation and Restructuring and Power Technologies, 2000. Proceedings. DRPT 2000. International Conference on
Source: IEEE Xplore

ABSTRACT Fault location techniques can be classified under three
categories: (1) those based on fundamental frequency currents and
voltages; (2) those based on travelling wave and high frequency
components; and (3) those based on knowledge-based approaches. Fault
indicators can be installed either in substation or on pole/tower along
the transmission line. This paper reviews the fault indicator
applications both in transmission and distribution systems. Principles,
merits and demerits of each fault location technique are discussed.
Finally, this paper suggests an advanced fault indicator based on fault
generated high frequency noise signal (FI-HF), which is mounted between
earth wire and tower. Fault generated high frequency noise signal is
captured by a special designed “earth trap” and stack tuner

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