Research on Stress Measurement Method of GIS Insulating Spacer Based on Ultrasonic Longitudinal Wave Method

LI Xiaojing; JIAO Guoxun; YANG Cheng; YANG Dongdong; WANG Wei; CHENG Yinzhang; SONG Jiancheng

doi:10.13296/j.1001-1609.hva.2025.03.009

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Research on Stress Measurement Method of GIS Insulating Spacer Based on Ultrasonic Longitudinal Wave Method

Research & Analysis | 更新时间：2025-05-25

- Research on Stress Measurement Method of GIS Insulating Spacer Based on Ultrasonic Longitudinal Wave Method
- High Voltage Apparatus Vol. 61, Issue 3, Pages: 80-86(2025)
- 作者机构：
  
  1.国网山西省电力公司电力科学研究院，太原　 030001
  2.国网太原供电公司，太原　 030001
  3.太原理工大学煤矿电气设备与智能控制山西省重点实验室矿用智能电器技术国家地方联合工程实验室，太原　 030024
- 作者简介：
- 基金信息：
  
  State Grid Shanxi Electric Power Company Science and Technology Project (GIS Basin Insulator Stress Detection Based on Ultrasonic Key Technology Research and Application)
- DOI：10.13296/j.1001-1609.hva.2025.03.009
  CLC：
- Received：20 October 2024，
  
  Revised：12 January 2025，
  
  Published：16 March 2025
- 稿件说明：
移动端阅览
LI Xiaojing, JIAO Guoxun, YANG Cheng, et al. Research on Stress Measurement Method of GIS Insulating Spacer Based on Ultrasonic Longitudinal Wave Method[J]. High voltage apparatus, 2025, 61(3): 80-86.
DOI：

LI Xiaojing, JIAO Guoxun, YANG Cheng, et al. Research on Stress Measurement Method of GIS Insulating Spacer Based on Ultrasonic Longitudinal Wave Method[J]. High voltage apparatus, 2025, 61(3): 80-86. DOI： 10.13296/j.1001-1609.hva.2025.03.009.

摘要

GIS盆式绝缘子的导电杆不对中是盆式绝缘子产生内部应力的原因之一，它会使盆式绝缘子在局部承受较大的应力甚至产生裂纹，从而引发漏气或局部放电等严重故障。文中分析了GIS盆式绝缘子在导电杆不对中工况下的应力分布规律，采用有限元仿真软件对盆式绝缘子在导电杆不对中工况下的应力分布进行了仿真计算，根据仿真计算结果，基于超声纵波法对盆式绝缘子在导电杆不对中时不同位置处的应力进行了测量并与仿真结果进行了对比。结果表明，盆式绝缘子在导电杆不对中工况下的应力最大处位于盆体凸面的中间位置，仿真计算与实验测量结果一致性较好，可以用于盆式绝缘子的应力测量。

Abstract

Misalignment of conductive rod of GIS insulating spacer is one of the reasons of the insulating spacer to generate internal stress

which can cause the insulating spacer to bear partially higher stress and even generate crack

thereby resulting in such serious faults as gas leakage or partial discharge. In this paper

the stress distribution of GIS insulating spacer under the misalignment of conductive rod is analyzed. The finite element simulation software is used to simulate and calculate the stress distribution of the insulating spacer under the condition of misalignment of conductive rod. According to the simulation calculation results

the stress at different positions of the insulating spacer in case of misalignment of conductive rod is measured based on the ultrasonic longitudinal wave method and is compared with the simulation result. The result shows that the position of the maximum stress of the insulating spacer in case of misalignment of conductive rod is located in the middle position of the convex surface of the insulating spacer. Both simulation calculation and experimental measurement results are in good agreement and can be used for the stress measurement of insulating spacer.

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