110kV电缆中绝缘缺陷对电场及温度场的影响
Effect of Insulation Defects on Electric and Temperature Fields in 110 kV Cables
常航瑞 1叶刚 1陈俊豪 1黄浩1
作者信息
- 1. 长江大学电子信息学院,湖北 荆州 434000
- 折叠
摘要
电缆是电力系统的重要设备之一.在实际运行过程中,电缆的绝缘层如果出现缺陷就将直接影响电缆的稳定运行.为此,建立了 110 kV电缆多物理场仿真模型,分析了不同种类和不同位置的缺陷对电缆绝缘温度场与电场的影响.研究结果表明,相比气隙缺陷,绝缘层受潮对 110 kV电缆内部的温度场和电场影响更大,且缺陷越靠近导体侧,影响越大.
Abstract
Cables are an important kind of equipment in power system.Defects encountered by cable insulation layer will directly affect stable operation of cables.This paper establishes a multi-physics field simulation model for 110 kV cables and analyzes the effects of different types and locations of defects on temperature and electric fields of cable insulation.The results show that,compared to air gap defects,moisture in the insulation has a greater effect on temperature and e-lectric fields inside the 110 kV cable,and the impacts of defects closes to conductor side are greater than those locate dis-tantly.
关键词
110kV电缆/绝缘缺陷/电场/温度场Key words
110 kV cable/insulation defect/electric field/temperature field引用本文复制引用
出版年
2024
NETL
NSTL
万方数据