单芯电力电缆护层环流对35 kV旁路电缆作业的影响  

Effect of Single-core Power Cable Sheath Circulation on 35 kV Bypass Cable Operation

作　　者：曹安全 王凡 叶洋 赵梦达 冯阿敏 Cao An-quan;Wang Fan;Ye Yang;Zhao Meng-da;Feng A-min

机构地区：[1]云南电网有限责任公司红河供电局,云南红河654400 [2]武汉华仪智能设备有限公司,湖北武汉430000

出　　处：《电力系统装备》2023年第2期16-18,共3页Electric Power System Equipment

摘　　要：在35 kV旁路电缆不停电作业中,旁路电缆采用单芯电力电缆,由于电磁耦合的存在,旁路电缆线路金属屏蔽护层必然出现感应电压或环流,感应电压过大或产生了环流,均会对旁路电缆线路安全造成影响,情况严重时甚至烧毁电缆。文章通过理论计算,研究旁路电缆的长度、布置方式和接地方式对其护层环流的影响,找出旁路电缆不停电作业中作业线路的最佳接地方式。In the 35 kV bypass cable non-stop operation,bypass cable using single core power cable,due to the existence of electromagnetic coupling,bypass cable line metal shield sheath must appear induction voltage or circulation,induction voltage is too large or produced the circulation,will affect the bypass cable line safety,when the serious situation even burned cable.In this paper,the influence of the length,arrangement and grounding mode of the bypass cable on the circulation of the sheath is studied.

关 键 词：旁路电缆 护层环流 电磁耦合 接地 

分 类 号：TM76[电气工程—电力系统及自动化]