摘要
综合分析作为电力电缆主要电气参数的导电线芯有效电阻的实用概念。电阻有效值的热效应会影响电缆传输容量、减少运行载流量。其中工频交流下导电线芯大截面的集肤效应、邻近效应是有效电阻增大的主要原因。
This text analyzes the effective resistance of conductor wire core, one of the main electric parameter of power cable.The heating effects of the effective value of resistance will affect transmission capability of power cable and reduce carrying capacity of running current,among which skin effect and close effect of large-section conductor wire core under wore-frequency alternating current are main causes of the effective resistance increment.
出处
《上海电机学院学报》
2005年第5期43-46,共4页
Journal of Shanghai Dianji University
关键词
电力电缆
导电线芯
交流有效电阻
集肤效应
邻近效应
power cable
conductor wire core
alternating current effective resistance
skin effect
close effect
