Measurement of switching overvoltages at substations and on transmission lines in extra high voltage systems

被引：0

作者：

Shinohara, Y. ^{[1
]}

Fukui, K. ^{[1
]}

Nomoto, S. ^{[1
]}

Matsubura, H. ^{[2
]}

机构：

[1] Chubu Elect Power Co Inc, Nagoya, Aichi 4560022, Japan

[2] Cent Res Inst Elect Power Ind, Yokosuka, Kanagawa 2400196, Japan

来源：

2008 IEEE/PES TRANSMISSION & DISTRIBUTION CONFERENCE & EXPOSITION, VOLS 1-3 | 2008年

关键词：

switching overvoltages; insulation; overvoltages multiple; surge arrester; the closing time differences;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This paper describes a measurement result of switching overvoltages in an actual 275kV system. The characteristics of the switching overvoltages were grasped from the actual waveforms obtained by measuring voltages at both ends of transmission line and a point on the transmission line simultaneously. The results give the first experimental verification of the conventional view that the switching overvoltages multiple is high at the point on the transmission lines between substations. Furthermore, the relationship between the closing time differences between each phase of the circuit breakers and the magnitude of the voltage due to the switching overvoltages was confirmed from the experimental results. It was verified that the value of the standard deviation of the closing time difference obtained from the experimental results is almost equal to the value obtained analytically.

引用

页码：605 / +

页数：3