Paper Title:
Research on the Detection of Faulty Insulator Strings
  Abstract

A series of experiments on the corona current pulse appearing on insulators under various contamination conditions with AC voltage of different amplitude are described. The corona current pulses were found to follow the Gaussian distribution and can be used to distinguish the faulty insulators from normal insulator strings in transmission line. The probability formulas about the corona current pulses have been studied in detail. They can be used as a kind of criterions to detect the faulty insulators. With several established fuzzy membership functions of humidity and contamination through data from experiments, it is proved that the insulation state could be estimated from the transmission line insulator strings by the fuzzy logical reasoning. This method has been verified in the laboratory by simulating work conditions of insulator strings on an 110kV transmission line and has the advantage of safety and convenience.

  Info
Periodical
Advanced Materials Research (Volumes 301-303)
Chapter
Chapter 2: Measuring and Testing Techniques
Edited by
Riza Esa and Yanwen Wu
Pages
895-901
DOI
10.4028/www.scientific.net/AMR.301-303.895
Citation
Y. X. Nie, X. G. Peng, X. N. Xu, "Research on the Detection of Faulty Insulator Strings", Advanced Materials Research, Vols. 301-303, pp. 895-901, 2011
Online since
July 2011
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Price
$32.00
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