Voltage-time characteristics and related approximation formula for 6.6-kv solid-core-type insulator having higher lightning impulse withstand voltage

Satoshi Matsumoto, Tomoyuki Sato, Yoshiyasu Koga, Shigeru Yokoyama

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

To establish an optimal lightning protection method for power distribution lines, factors such as the mechanism behind lightning surges as well as power distribution network and insulation level of power distribution lines should be taken into consideration. This study experimentally clarifies the voltage-time (V-t) characteristics of currently used 6.6-kV power distribution insulators having higher lightning impulse withstand voltage (LIWV) by considering the differences in polarity and the presence or absence of slurry. Furthermore, in this paper we propose approximation formulas based on the sparkover model for calculating the flashover characteristics of 6.6-kV power distribution insulators, which can contribute to insulation coordination throughout the power distribution system.

Original languageEnglish
Pages (from-to)224-229
Number of pages6
JournalIEEJ Transactions on Power and Energy
Volume134
Issue number3
DOIs
Publication statusPublished - 2014

Fingerprint

Lightning
Electric insulation coordination
Lightning protection
Flashover
Electric potential
Electric sparks
Electric power distribution
Insulation

Keywords

  • Power distribution insulator
  • Voltage-time (V-t) characteristics

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology

Cite this

Voltage-time characteristics and related approximation formula for 6.6-kv solid-core-type insulator having higher lightning impulse withstand voltage. / Matsumoto, Satoshi; Sato, Tomoyuki; Koga, Yoshiyasu; Yokoyama, Shigeru.

In: IEEJ Transactions on Power and Energy, Vol. 134, No. 3, 2014, p. 224-229.

Research output: Contribution to journalArticle

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