Electrical test methods for non-ceramic insulators used for live line replacement

R. W. Harmon, G. G. Karady, O. G. Amburgey, G. Gela, J. Hall, H. Schneider, J. T. Burnham, J. McBride, L. Coffeen, N. Spaulding, T. Carrera, Z. SziLagyi, J. Kuffel, R. Gemignani, J. Dushaw

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The utilities frequently use non-ceramic insulators for live line maintenance. These insulators are not always tested electrically during manufacturing. Undetected internal failures in an insulator may endanger workers performing live line maintenance on the insulators. The live line maintenance requires careful testing of each insulator before use. For the selection of the most effective test method, insulators were purposely made with internal flaws and then subjected to megger, hot stick, partial discharge and RIV tests as well as measurement of the total and surface component of leakage current, together with surface heating measurement. The most sensitive method is the RIV test, which identified 6 insulators with flaws. The partial discharge and hot stick tests found 4 insulators with embedded wire. From a practical point of view, the hot stick seems to be suitable for field test of the insulators.

Original languageEnglish (US)
Title of host publicationProceedings of the IEEE Power Engineering Society Transmission and Distribution Conference
Place of PublicationPiscataway, NJ, United States
PublisherIEEE
Pages129-134
Number of pages6
StatePublished - 1996
Externally publishedYes
EventProceedings of the 1996 14th IEEE Transmission and Distribution Conference - Los Angeles, CA, USA
Duration: Sep 15 1996Sep 20 1996

Other

OtherProceedings of the 1996 14th IEEE Transmission and Distribution Conference
CityLos Angeles, CA, USA
Period9/15/969/20/96

ASJC Scopus subject areas

  • Energy(all)
  • Engineering(all)

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