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
翟文杰 1王振国 1樊刚 1贾飞 1王智 1王全欢1
作者信息
- 1. 内蒙古电力集团乌海供电公司,内蒙古 乌海 016000
- 折叠
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.
Abstract
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 dis-assembly inspection are performed on the faulty cable termination.It is found that there are instances of local breakdown and sub-standard construction technology in the cable termination insulation.The possible causes of insulation breakdown of the cable ter-mination are analyzed from the aspects such as external force impact on cable termination,cable insulation body quality and in-stallation technology.The preventive measures are proposed to improve the installation quality and operation reliability of the ca-ble termination.
关键词
电缆/电场畸变/绝缘击穿/电缆终端Key words
cable/electric field distortion/insulation breakdown/cable termination引用本文复制引用
出版年
2024
NETL
NSTL
万方数据