Analysis and control of transient enclosure voltages in GIS (EMTP simulation studies)

K. Chandrakar, R. S. Gorayan
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引用次数: 3

Abstract

Transient Enclosure voltage is special case of very fast transient over voltages which occurs due to disconnect switch operation or earth ground. Transient Enclosure Voltage appears on external of earthed enclosure of Gas Insulated Systems. Despite of proper grounding, this phenomenon indicates presence of high potentials on Gas Insulted System enclosures so the grounding system impedance is thoroughly examined and designed. In this study EMTP Software is used for analysis. Simulation was done by varying the different parameters. Variations of waveforms of the Transient Enclosure Voltage with various parameters have been studied.
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GIS中暂态机箱电压的分析与控制(EMTP仿真研究)
瞬态外壳电压是由于断开开关操作或接地而产生的快速瞬态过电压的特殊情况。气体绝缘系统接地外壳的外部出现瞬态外壳电压。尽管有适当的接地,但这种现象表明在气体侮辱系统外壳上存在高电位,因此要彻底检查和设计接地系统阻抗。本研究采用EMTP软件进行分析。通过改变不同的参数进行仿真。研究了瞬态外壳电压波形随不同参数的变化规律。
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