Study on Electro-thermal Coupling Simulation on Surface Defects of Busbar Insulation Sheath

WANG Longzhen; LIU Changhong; CHEN Jianfang; WU Xi’ao; WEI Min; ZHANG Xiaoxing

doi:10.13296/j.1001-1609.hva.2025.12.019

您当前的位置：

首页 >

文章列表页 >

Study on Electro-thermal Coupling Simulation on Surface Defects of Busbar Insulation Sheath

Research & Analysis | 更新时间：2025-12-09

- Study on Electro-thermal Coupling Simulation on Surface Defects of Busbar Insulation Sheath
- High Voltage Apparatus Vol. 61, Issue 12, Pages: 138-145(2025)
- 作者机构：
  
  国网安徽省电力有限公司，安徽马鞍山 243000
  湖北工业大学新能源及电网装备安全监测湖北省工程研究中心，武汉 430068
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2025.12.019
  CLC：
- Received：22 July 2025，
  
  Revised：2025-09-15，
  
  Published：16 December 2025
- 稿件说明：
移动端阅览
WANG Longzhen, LIU Changhong, CHEN Jianfang, et al. Study on Electro-thermal Coupling Simulation on Surface Defects of Busbar Insulation Sheath[J]. High Voltage Apparatus, 2025, 61(12): 138-145.
DOI：

WANG Longzhen, LIU Changhong, CHEN Jianfang, et al. Study on Electro-thermal Coupling Simulation on Surface Defects of Busbar Insulation Sheath[J]. High Voltage Apparatus, 2025, 61(12): 138-145. DOI： 10.13296/j.1001-1609.hva.2025.12.019.

摘要

母排是用来汇集和分配电流的导体，其表面的绝缘护套主要起到防止腐蚀和绝缘保护的作用。绝缘护套存在缺陷均影响护套电场、电流以及温度分布，从而威胁变电站的正常运行。文中基于有限元仿真软件，构建了部分绝缘护套老化缺陷、外部绝缘污秽缺陷、双相母排搭接异物缺陷3种典型的缺陷模型，并在此基础上对绝缘护套表面电场、温度分布和泄漏电流变化情况进行了分析。结果表明，绝缘护套表面老化会因绝缘电阻减小而导致泄漏电流显著增加，附着金属异物和双相母排间搭接异物则对泄漏电流影响较小；附着金属异物和双相母排间搭接异物会导致绝缘护套表面电场严重畸变，甚至超过空气击穿电压，从而威胁母排正常运行；而3种缺陷对母排温度分布的影响均很小。相关的仿真结果为绝缘护套的运行状态检测方法与故障诊断提供了理论依据。

Abstract

Busbar is a conductor for collecting and distributing current

and the insulation sheath on its surface plays a major role in corrosion prevention and insulation protection. Defects in the insulation sheath can affect the electric field

current and temperature distribution of the sheath

thus threatening normal operation of substation. In this paper

based on finite element simulation software

such three typical defect models as partial insulation sheath aging

external insulation contamination and foreign object during the double-phase busbar connection are constructed and

on this basis

the electric field

temperature distribution and leakage current variation on the insulation sheath surface are analyzed.The results show that the aging of the insulation sheath surface can lead to a significant increase in leakage current due to the decrease of insulation resistance

while the attachment of metallic foreign objects and foreign objects connection between the double-phase busbars have a small influence on leakage current.Attachment of metallic foreign bodies and foreign object connection between double-phase busbar can lead to serious distortion of electric field on surface of the insulation sheath

even exceed the air breakdown voltage

thus threatening normal operation of the busbar. While

the influece of the three defects on the temperature distribution of the busbar is very small. The relevant simulation results can provide a theoretical basis for the operation condition detection method and fault diagnosis of the insulation sheath.

关键词

Keywords

references

高瑞敏 , 李敏 , 肖献国 . 热塑性复合材料在电气绝缘领域的应用 [J ] . 塑料科技 , 2022 , 50 ( 3 ): 121 - 124 .

GAO Ruimin , LI Min , XIAO Xianguo . Application of thermoplastic composites in electrical insulation field [J ] . Plastics Science and Technology , 2022 , 50 ( 3 ): 121 - 124 .

刘会斌 , 王延伟 , 李博 , 等 . 绝缘护套对间隙交流击穿特性的影响研究 [J ] . 绝缘材料 , 2021 , 54 ( 10 ): 84 - 88 .

LIU Huibin , WANG Yanwei , LI Bo , et al . Research on influence of insulating sheath on AC breakdown characteristics of gap [J ] . Insulating Materials , 2021 , 54 ( 10 ): 84 - 88 .

周刚 , 蔡亚楠 , 许路广 , 等 . 变电站主变低压侧母线桥绝缘防护措施改进 [J ] . 电气开关 , 2020 , 58 ( 2 ): 106 - 108 .

ZHOU Gang , CAI Yanan , XU Luguang , et al . The improvement of protective measures of the main transformer low voltage side busbar bridge insulation of the transformer substation [J ] . Electric Switcher , 2020 , 58 ( 2 ): 106 - 108 .

SAID A . Analysis of 500 kV OHTL polluted insulator string behavior during lightning strokes [J ] . International Journal of Electrical Power & Energy Systems , 2018 ( 95 ): 405 - 416 .

MAHMOODI J , MIRZAIE M , SHAYEGANI-AKMAL A A . Surface charge distribution analysis of polymeric insulator under AC and DC voltage based on numerical and experimental tests [J ] . International Journal of Electrical Power & Energy Systems , 2019 ( 105 ): 283 - 296 .

DOSHI T , GORUR R S , HUNT J . Electric field computation of composite line insulators up to 1 200 kV AC [J ] . IEEE Transactions on Dielectrics and Electrical Insulation , 2011 , 18 ( 3 ): 861 - 867 .

LUO Yi , TANG Ju , PAN Cheng , et al . Dynamics of surface charge and electric field distributions on basin-type insulator in GIS/GIL due to voltage polarity reversal [J ] . High Voltage , 2020 , 5 ( 2 ): 151 - 159 .

CHERNEY E A . RTVsilicone-a high tech solution for a dirty insulator problem [J ] . IEEE Electrical Insulation Magazine , 1995 , 11 ( 6 ): 8 - 14 .

OH M J , YOO S M , CHO I S , et al . A study on the effect of insulating sleeve on solidification characteristics of A356 aluminum alloy [J ] . Journal of Korea Foundry Society , 2011 , 31 ( 4 ): 205 - 211 .

PHILLIPS A J , KUFFEL J , BAKER A , et al . Electric fields on AC composite transmission line insulators [J ] . IEEE Transactions on Power Delivery , 2008 , 23 ( 2 ): 823 - 830 .

PHILLIPS A J , MAXWELL A J , ENGELBRECHT C S , et al . Electric-field limits for the design of grading rings for composite line insulators [J ] . IEEE Transactions on Power Delivery , 2015 , 30 ( 3 ): 1110 - 1118 .

LI Xinran , ZHANG Simin , CHEN Lincong , et al . A study on the influence of end-sheath aging and moisture absorption on abnormal heating of composite insulators [J ] . Coatings , 2022 , 12 ( 7 ): 898 .

MA Jianqiao , WANG Xiangfei , ZHANG Ruiqian , et al . Influence of sheath radial crack on flashover arc and leakage current of roof silicon rubber insulator for high-speed train [J ] . IEEE Access , 2022 ( 10 ): 19720 - 19731 .

ZHANG Xin , ZHU Jiebei , BU Siqi , et al . The development of lowcurrent surface arcs under clean and salt-fog conditions in electricity distribution networks [J ] . IEEE Access , 2018 ( 6 ): 15835 - 15843 .

SHI Yunfei , XIE Gengsheng , WANG Qingyun , et al . Simulation analysis and calculation of electric field distribution characteristics of UHV wall bushing [J ] . Energy Reports , 2021 , 7 ( 1 ): 110 - 117 .

成立 , 梅红伟 , 王黎明 , 等 . 复合绝缘子用硅橡胶护套长时间老化特性及其影响因素 [J ] . 电网技术 , 2016 , 40 ( 6 ): 1896 - 1902 .

CHENG Li , MEI Hongwei , WANG Liming , et al . Study on long-term aging characteristics and impact factors for silicone rubber sheath of composite insulators [J ] . Power System Technology , 2016 , 40 ( 6 ): 1896 - 1902 .

梁崇亮 . 多种老化因素对接触网复合绝缘子憎水性及憎水恢复性的影响研究 [J ] . 电工技术 , 2021 ( 9 ): 170 - 173 .

LIANG Chongliang . Research on influence of aging factors on hydrophobicity and hydrophobicity recovery of catenary composite insulators [J ] . Electrical technology , 2021 ( 9 ): 170 - 173 .

贺姣姣 . 不同运行条件下复合绝缘子伞裙老化特性研究 [J ] . 宁夏电力 , 2021 ( 5 ): 63 - 69 .

HE Jiaojiao . Research on aging characteristics of composite insulator skirt under different operating conditions [J ] . Ningxia Electric Power , 2021 ( 5 ): 63 - 69 .

陈城 , 郭庆 , 施金奎 , 等 . 热缩套管对母排散热性能影响研究 [J ] . 科技与创新 , 2022 ( 4 ): 41 - 43 .

CHEN Cheng , GUO Qing , SHI Jinkui , et al . Research on the influence of heat shrinkable sleeve on the heat dissipation performance of thebusbar [J ] . Science and Technology &Innovation , 2022 ( 4 ): 41 - 43 .

梅红伟 , 彭功茂 , 李健 , 等 . 复合绝缘子悬挂导线安装绝缘护套后的污闪特性 [J ] . 中国电机工程学报 , 2011 , 31 ( 31 ): 189 - 195 .

MEI Hongwei , PENG Gongmao , LI Jian , et al . Pollution flashover characteristics of composite insulator with joint insulation jacket at transmission conductor near its high potential end [J ] . Proceedings of the CSEE , 2011 , 31 ( 31 ): 189 - 195 .

金阳 , 乌江 , 刘海峰 , 等 . 架空裸线安装绝缘护套后击穿方式变化 [J ] . 高电压技术 , 2017 , 43 ( 11 ): 3732 - 3739 .

JIN Yang , WU Jiang , LIU Haifeng , et al . Overhead bare line breakdown phenomenon after installing insulation jacket [J ] . High Voltage Engineering , 2017 , 43 ( 11 ): 3732 - 3739 .

陈杰 , 刘洋 , 周立 , 等 . 绝缘护套包覆对500 kV输电线路导线与杆塔间空气间隙击穿特性的影响 [J ] . 高电压技术 , 2015 , 41 ( 7 ): 2315 - 2320 .

CHEN Jie , LIU Yang , ZHOU Li , et al . Electrical breakdown characteristics of air gap between conductor and tower covered by insulation sheath in 500 kV transmission line [J ] . High Voltage Engineering , 2015 , 41 ( 7 ): 2315 - 2320 .

董新胜 , 张东 , 朱章甫 , 等 . 输电线路用绝缘护套试验研究 [J ] . 高压电器 , 2016 , 52 ( 6 ): 86 - 90 .

DONG Xinsheng , ZHANG Dong , ZHU Zhangfu , et al . Analysis on the insulating sheath test for transmission line [J ] . High Voltage Apparatus , 2016 , 52 ( 6 ): 86 - 90 .

徐俊 , 高琦 , 周飞 , 等 . 典型故障条件下35 kV包裹绝缘护套母排电场分布研究 [J ] . 高压电器 , 2020 , 56 ( 6 ): 317 - 323 .

XU Jun , GAO Qi , ZHOU Fei , et al . Study on the electric field distribution of 35 kV bus with wrapped insulation sheath under typical fault conditions [J ] . High Voltage Apparatus , 2020 , 56 ( 6 ): 317 - 323 .

张黛芳 . 绝缘管型母线典型缺陷故障的多物理场耦合特性研究 [D ] . 北京 : 华北电力大学 , 2020 .

ZHANG Daifang . Research on multiphysics coupling characteristics of typical defects of insulated tubular bus [D ] . Beijing : North China Electric Power University , 2020 .

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Study on the Electric Field Distribution of 35 k V Bus with Wrapped Insulation Sheath Under Typical Fault Conditions

Study on Temperature Rise Characteristic of Wind-power Transmission Submarine Cables Under Fluctuating Current Loads

Thermal Stress Analysis of Insulating Spacer

Study on Seismic Performance Improvement Methods for Gas-insulated Transmission Lines (GIL) in Ultra-high Voltage Converter Station

Research on Influence of Piezoelectric Material Properties and Element Size on Sensitivity of Piezoelectric Sensor for Partial Discharge Monitoring of Transformer

Related Author

XU Jun

GAO Qi

ZHOU Fei

WEI Long

LI Wei

WU Gaobo

LIU Ying

CUI Rongjian

Related Institution

School of Electrical Engineering and Automation of Hefei University of Technology

IECL Technology (Suzhou) Co.,Ltd.

State Grid Jiangsu Electric Power Co.,Ltd.,Suzhou Power Supply Branch

Central Southern China Electric Power Design Institute Co., Ltd. of CPECC

School of Electrical Engineering, Xi'an Jiaotong University

⁰