Selection and Optimization of Lightning Overvoltage Gap for 1 000 kV Large Span Line Suspension Tower

doi:10.11930/j.issn.1004-9649.201801010

Abstract

Abstract: In order to evaluate the lightning protection performance of 1 000 kV UHV large span line, the value of lightning overvoltage gap is put forward according to the design code, the simulation model is established by ATP-EMTP, and the lightning protection performance is calculated, what's more, the effect of arrester on lightning protection performance is analyzed. The results show that surge arrester can significantly improve the lightning withstand level, decrease the lightning trip-out rate by 66%, reduce tower height and save tower material.

Key words: ATP-EMTP, 1 000 kV, large span, lightning protection performance, surge arrester

CLC Number:

TM863

ZHANG Sixiang, CHEN Peng, ZHANG Yong, YANG Bo. Selection and Optimization of Lightning Overvoltage Gap for 1 000 kV Large Span Line Suspension Tower[J]. Electric Power, 2018, 51(7): 28-35,135.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.201801010

https://www.electricpower.com.cn/EN/Y2018/V51/I7/28

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