[1]庄 丞,袁传镇,曾建斌.表面应力分布对252 kV GIS盆式绝缘子机械性能影响的研究[J].电瓷避雷器,2020,(02):183-188.[doi:10.16188/j.isa.1003-8337.2020.02.029]
 ZHUANG Cheng,YUAN Chuanzhen,ZENG Jianbin.Study on Influence of Surface Stress Distribution on Mechanical Properties of 252 kV GIS Basin Insulators[J].,2020,(02):183-188.[doi:10.16188/j.isa.1003-8337.2020.02.029]
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表面应力分布对252 kV GIS盆式绝缘子机械性能影响的研究()
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《电瓷避雷器》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2020年02期
页码:
183-188
栏目:
绝缘子
出版日期:
2020-04-25

文章信息/Info

Title:
Study on Influence of Surface Stress Distribution on Mechanical Properties of 252 kV GIS Basin Insulators
作者:
庄 丞1 袁传镇2 曾建斌1
(1.厦门理工学院电气工程与自动化学院,福建 厦门 361000; 2.许继(厦门)智能电力设备股份有限公司,福建 厦门 361000)
Author(s):
ZHUANG Cheng 1 YUAN Chuanzhen2 ZENG Jianbin1
(1.School of Electrical Engineering and Automation, Xiamen University of Technology, Xiamen 361000,China; 2.Xuji(Xiamen)Intelligent Power Equipment Co., Ltd., Xiamen 361000,China)
关键词:
表面应力 盆式绝缘子 水压试验 应力仿真 有限元法 GIS
Keywords:
surface stress basin insulator hydraulic test stress simulation finite element method GIS
DOI:
10.16188/j.isa.1003-8337.2020.02.029
摘要:
针对252 kV GIS盆式绝缘子表面应力分布对其机械性能的影响建立了模型,并利用三维有限元分析软件对其进行仿真计算。为验证理论计算的有效性,搭建了一个盆式绝缘子水压试验平台。采用静态应变测试系统和应变片对盆式绝缘子在水压试验过程中其表面应力分布情况进行信号转换和数据采集。试验结果表明:水压强度为2.5 MPa时,盆式绝缘子先从嵌件一侧脱落,沿两侧路径破裂至其弧面末端与内密封槽间的倒圆角处; 试验中测得环氧树脂部分最先开裂位置的最大应力约为52.25 MPa,且破裂位置与仿真计算结果一致; 由于工艺上的不完善导致了破裂的起始位置为嵌件处,而不是树脂表面最大应力处。试验结果可为盆式绝缘子在结构上的优化设计提供参考,最终达到提高盆式绝缘子机械强度的目的。
Abstract:
A model is established for the influence of surface stress distribution on the mechanical properties of 252 kV GIS basin insulators, and it is simulated by 3D finite element analysis software. In order to verify the validity of the theoretical calculation, a basin insulator hydrostatic test platform was built. The static strain test system and the strain gauge were used to perform signal conversion and data acquisition on the surface stress distribution of the basin insulator during the hydrostatic test. The test results show that when the hydraulic pressure is 2.5 MPa, the basin insulator first falls off from the insert side, and breaks along the path on both sides to the rounded corner between the end of the curved surface and the inner seal groove; the epoxy is measured in the test. The maximum stress at the first cracking position of the resin part is about 52.25 MPa, and the rupture position is consistent with the simulation calculation result; the starting position of the crack is at the insert, not the maximum stress on the resin surface due to the imperfection of the process. The test results can provide reference for the structural optimization design of the basin insulator, and finally achieve the purpose of improving the mechanical strength of the basin insulator.

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备注/Memo

备注/Memo:
收稿日期:2018-07-11作者简介:庄丞(1991—),男,硕士,研究方向为高电压技术。基金项目:福建自然科学基金资助项目(编号:2016J01747)。
更新日期/Last Update: 2020-04-25