On random line-to-neutral switching transients in transmission systems

被引：1
|
作者：
Morcos, MM
Anis, H
机构：
[1] Department of Electrical and Computer Engineering, Kansas State University Manhattan, KS
[2] Department of Electrical Engineering, University of Cairo, Cairo
来源：
ELECTRIC MACHINES AND POWER SYSTEMS | 1996年 / 24卷 / 03期
关键词：
insulators and insulation; power transmission; switching transients;
D O I：
10.1080/07313569608955676
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The basic aim of this paper is to analyze switching impulse magnitudes and their statistical variations, and to predict the risk of failure of the insulation. The effect of random pole closure of circuit breakers on the statistical features of line-to-neutral overvoltages are discussed in this paper. The features are derived for a model of a 500 kV transmission line. Risk of insulation failure is calculated for both simultaneous switching and controlled switching modes of circuit breaker closures. The calculated risk of failure can be reliable only if the randomness of the waveshape of switching overvoltages is considered.
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页码：303 / 311
页数：9
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