一起110 kV变压器高压侧电缆终端绝缘击穿事故原因分析  

Cause Analysis of a Cable Termination Insulation Breakdown Accident at the High-voltage Side of a 110 kV Transformer

作　　者：翟文杰 王振国 樊刚 贾飞 王智 王全欢 ZHAI Wenjie;WANG Zhenguo;FAN Gang;JIA Fei;WANG Zhi;WANG Quanhuan(Inner Mongolia Power Group Wuhai Power Supply Company,Wuhai 016000,China)

机构地区：[1]内蒙古电力集团乌海供电公司,内蒙古乌海016000

出　　处：《山东电力高等专科学校学报》2024年第3期10-14,共5页Journal of Shandong Electric Power College

摘　　要：对一起110 kV变压器高压侧电缆终端绝缘击穿事故进行深入分析。探讨电缆绝缘击穿原理,对故障电缆终端进行外观检查和解体检查,发现电缆终端绝缘存在局部击穿、施工工艺不达标等情况。从电缆终端受外力影响、电缆绝缘本体质量、安装工艺等方面,分析电缆终端绝缘击穿的可能原因,并提出相应的防范措施,以提高电缆终端的安装质量和运行可靠性。An in-depth analysis is conducted on the cable termination insulation breakdown accident at the high-voltage side of a 110 kV transformer.The principle of insulation breakdown of cables is discussed,and the external appearance inspection and disassembly inspection are performed on the faulty cable termination.It is found that there are instances of local breakdown and substandard construction technology in the cable termination insulation.The possible causes of insulation breakdown of the cable termination are analyzed from the aspects such as external force impact on cable termination,cable insulation body quality and installation technology.The preventive measures are proposed to improve the installation quality and operation reliability of the cable termination.

关 键 词：电缆 电场畸变 绝缘击穿 电缆终端 

分 类 号：TM215.2[一般工业技术—材料科学与工程]