Emtp
开关设备
过电压
隔离开关
弧(几何)
瞬态(计算机编程)
工程类
断路器
电子工程
电气工程
电压
计算机科学
机械工程
物理
电力系统
量子力学
操作系统
功率(物理)
作者
Hang Dai,Xiao Fan Liu,Weidong Zhang
出处
期刊:Applied Mechanics and Materials
[Trans Tech Publications, Ltd.]
日期:2014-08-11
卷期号:602-605: 245-249
被引量:1
标识
DOI:10.4028/www.scientific.net/amm.602-605.245
摘要
Several arc models representing a disconnector’s closing operation in a 252kV gas insulated switchgear (GIS) are implemented with a computer program ATP/EMTP to simulate very fast transient overvoltage (VFTO). Arc models are used as black box models in connection with a test circuit. Theoretical bases, formulas and realizations of these models are described. Arc models’ parameters are mainly pinpointed by fitting their simulation results with VFTO waveforms measured in a real 252kV GIS test setup. Comparisons between arc models’ simulation results and measurement indicate that dynamic arc models based on Cassie and Mayr theories give more realistic results with particular regard to VFTO’s peak value and frequency spectrum.
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