Study on Testing of Insulation Shield of 220kV Switch Contact Arm

FENG Zhenbo; ZHENG Xiaogan; CHEN Wei; DONG Jianfeng

doi:10.13296/j.1001-1609.hva.2023.01.004

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Study on Testing of Insulation Shield of 220kV Switch Contact Arm

更新时间：2025-04-26

- Study on Testing of Insulation Shield of 220kV Switch Contact Arm
- High VoltageApparatus Vol. 59, Issue 1, Pages: 25-29(2023)
- 作者机构：
  
  1. 国网福建省电力有限公司福州供电公司
  2. 国网福州供电公司福州亿力电力工程有限公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2023.01.004
  CLC： TM63;TM84
- Published：2023
- 稿件说明：
移动端阅览
FENG Zhenbo, ZHENG Xiaogan, CHEN Wei, et al. Study on Testing of Insulation Shield of 220kV Switch Contact Arm[J]. High voltageapparatus, 2023, 59(1): 25-29.
DOI：

FENG Zhenbo, ZHENG Xiaogan, CHEN Wei, et al. Study on Testing of Insulation Shield of 220kV Switch Contact Arm[J]. High voltageapparatus, 2023, 59(1): 25-29. DOI： 10.13296/j.1001-1609.hva.2023.01.004.

摘要

针对在110～220 kV变电站带电作业中安全距离不足，缺乏有效绝缘隔离防护的问题，深入研究了带电作业辅助绝缘遮蔽工具及其电气试验方法。结合多种复合材料的选型试验结果，文中采用超高分子量聚乙烯材料设计了一种新型隔离开关触头转臂绝缘遮蔽罩，采用球-棒电极模型进行绝缘有效长度和层间耐压试验，试验给出了110 kV与220 kV电压等级新型绝缘遮蔽罩击穿电压与其厚度的关系，在此基础上，文中提出了极限状态下绝缘遮蔽罩的最优参数，试验结果证实了所研制的绝缘遮蔽工具的有效性与可靠性。

Abstract

In view of such problems as insufficient safety distance and lack of effective insulation and isolation protection in live operation of 110～220 kV substation

the auxiliary insulation and shielding tools and their electrical test methods for live operation are studied. According to the test results of type selection of various composite materials

a new type of insulation shield for switch contact rotating arm is designed by using UHMWPE material. The ballrod electrode model is used to perform the effective insulation length and interlayer withstand voltage test. The test shows the relationship between the breakdown voltage and the thickness of 110 kV and 220 kV new type insulation shield. On this basis

the optimal parameters of the insulation shield under the limit state are proposed. And the effectiveness and reliability of the developed insulation shield tool is proved by the test result.

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