多回路单芯XLPE电力电缆金属护套环流计算分析  

Calculation of Circular Current in the Metallic Sheath of Multi-loops Single Core XLPE Cable and Analysis

作　　者：冯超[1] 王鹏飞[1] 马丽山[1] 廖鹏[1] 马奇[1] 李高峰 郑勇[1] 李秋阳[1] 

机构地区：[1]国网青海省电力公司电力科学研究院,青海西宁810008 [2]西安博源电气公司,陕西西安710000

出　　处：《青海电力》2015年第1期31-35,47,共6页Qinghai Electric Power

摘　　要：针对2种单芯电力电缆金属护套感应电势的计算方法,通过磁通求感应电势方式推导出等腰三角形敷设的四回路电力电缆护套环流计算方程组,利用MATLAB软件建立数学模型,最后结合现场实例,验证了此计算方程组的准确性。This paper introduces in first two methods to calculate the induced potential of the metallic sheath of single core power cable. And then equations to calculate the circular current of the metallic sheath of power cable laid in four loops circuit with isosceles triangle configuration is derived by means of calculation of induced potential from magnetic flux, based on the equations a mathematical model is built by using MATLAB. In end, the Validation of the equations is also given with field examples in this paper.

关 键 词：电力电缆 环流计算 感应电压 MATLAB 

分 类 号：TM247[一般工业技术—材料科学与工程]