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

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

研究成果: Conference contribution

7 被引用数 (Scopus)

抄録

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.

本文言語English
ホスト出版物のタイトル2016 33rd International Conference on Lightning Protection, ICLP 2016
出版社Institute of Electrical and Electronics Engineers Inc.
ISBN(電子版)9781509058433
DOI
出版ステータスPublished - 2016 12月 19
イベント33rd International Conference on Lightning Protection, ICLP 2016 - Estoril, Lisboa, Portugal
継続期間: 2016 9月 252016 9月 30

Other

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

ASJC Scopus subject areas

  • 環境工学

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