同相大截面并联电缆敷设对其电流分布的研究  

Study on Current Distribution in the Same Phase of Parallel Large Section Cables

作　　者：师宁[1] 姜洪松 

机构地区：[1]邢台职业技术学院电气工程系,河北邢台054035 [2]希杰(聊城)生物科技有限公司,山东聊城252000

出　　处：《邢台职业技术学院学报》2010年第3期44-47,共4页Journal of Xingtai Polytechnic College

摘　　要：介绍了某变电站内6.6kV单芯交联聚乙烯绝缘500mm2电缆同相两根并联的敷设和运行情况,通过ANSOFT软件模拟计算,分析出其载流量不平衡的主要原因是同相并联电缆的外感值不相同。通过研究分析,建议在同相多根并联的高压大截面电缆线路中采用上下两层水平布置、正"品"型和水平对称排列布置的敷设方式。The laying modes and running situation of two parallel 6.6KV XLPE single-core cables with the same phase at a transformer substation are presented.The main reason of the current carrying capability imbalance of two same phases’ parallel cables is different from external inductance value,analyzed by the ANSOFT software.The laying modes for the parallel 6.6KV large section cable lines with the same phase are adopted on the upper and lower layers,the positive ＂品＂ form and the symmetrical disposition.

关 键 词：并联电缆 阻抗 敷设方式 ANSOFT 

分 类 号：TM757[电气工程—电力系统及自动化]