Degradation characteristics on MOV of surge arrester used for 6.6kV power distribution line

Yoshiyasu Koga, Yasuaki Yoneda, Shigeru Yokoyama, Tomoyuki Sato, Satoshi Matsumoto

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

4 Citations (Scopus)

Abstract

In Japan, porcelain-housed internally gapped lightning surge arresters are applied for 6.6kV distribution lines. A lightning surge arrester is composed of Metal Oxide Varistors (MOVs) and an internal gap, which are installed in a porcelain housing having sealing structure. It is well known that a dominant degradation factor of a surge arrester is follow current interrupting ability of a MOV. This paper is focused on follow current interrupting ability of a degraded MOV due to lightning current. The degradation characteristics of a MOV due to lightning surge is examined by measuring the reference voltage of the MOV after lightning impulse currents are applied to a MOV. The variation of the reference voltage in the negative direction voltage was bigger than that of the positive direction voltage. Therefore, it should be evaluated by checking the reference voltage using both positive and negative direction during the degradation test.

Original languageEnglish
Title of host publication2016 33rd International Conference on Lightning Protection, ICLP 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509058433
DOIs
Publication statusPublished - 2016 Dec 19
Event33rd International Conference on Lightning Protection, ICLP 2016 - Estoril, Lisboa, Portugal
Duration: 2016 Sep 252016 Sep 30

Other

Other33rd International Conference on Lightning Protection, ICLP 2016
CountryPortugal
CityEstoril, Lisboa
Period16/9/2516/9/30

Keywords

  • Degradation characteristics
  • Lightning protection
  • Lightning surge arrester
  • MOV
  • Reference voltage

ASJC Scopus subject areas

  • Environmental Engineering

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