Analysis on Small Capacitive Current Switching Test of Air-insulated Disconnector

LI Qiang; CHEN Di; LI Bo; YANG Tao; FU Yulong; ZHAO Yuan; WEI Peng

doi:10.13296/j.1001-1609.hva.2021.06.028

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Analysis on Small Capacitive Current Switching Test of Air-insulated Disconnector

更新时间：2025-04-26

- Analysis on Small Capacitive Current Switching Test of Air-insulated Disconnector
- High VoltageApparatus Vol. 57, Issue 6, Pages: 216-221(2021)
- 作者机构：
  
  1. 西安高压电器研究院有限责任公司
  2. 中国合格评定国家认可中心
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2021.06.028
  CLC： TM564.1
- Published：2021
- 稿件说明：
移动端阅览
LI Qiang, CHEN Di, LI Bo, et al. Analysis on Small Capacitive Current Switching Test of Air-insulated Disconnector[J]. High voltageapparatus, 2021, 57(6): 216-221.
DOI：

LI Qiang, CHEN Di, LI Bo, et al. Analysis on Small Capacitive Current Switching Test of Air-insulated Disconnector[J]. High voltageapparatus, 2021, 57(6): 216-221. DOI： 10.13296/j.1001-1609.hva.2021.06.028.

摘要

介绍了标准规定的空气绝缘隔离开关开合容性小电流试验的回路

以及标准中对其进行的理论分析

结合实际试验时得到的波形

对比并分析了此回路和不含有电感以及电源侧电容很小的气体绝缘隔离开关试验标准回路的波形方面的差异

得出了在此回路下隔离开关两端对地峰值过电压在试验过程中更均衡

燃弧时间更长

重击穿时瞬态电流更高的特点

推荐采用此回路进行试验。

Abstract

The test circuit on small capacitive current switching test of air-insulated disconnector specified by the standards and its theoretical analysis in the standard are introduced.Combining with the wave form gained in the actual test

the difference of the wave form between this test circuit and the standard circuit of air-insulated disconnector test without inductance and with only low capacitance value at the source side is compared and analyzed.The characteristics

such in the standard circuit the peak over voltage to earth at both sides of the disconnector is more even

the arcing time is longer and the transient current during restriking is higher

are obtained.And the circuit is recommended to be adopted for the small capacitive current switching test of air-insulated disconnectors.

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Related Institution

Xi'an High Voltage Apparatus Research Institute Co., Ltd.

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Xi'an XD Switchgear Electric Co., Ltd.

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