单芯高压电力电缆金属护套感应电流的研究之一——感应电流的计算和预控 investigation of the induced current in the metallic sheath of single core hv power cables, part 1.pdfVIP
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单芯高压电力电缆金属护套感应电流的研究之一——感应电流的计算和预控 investigation of the induced current in the metallic sheath of single core hv power cables, part 1
2010年第5期 电线电缆 2010年10月 No.5 2010 ElectricWire&Cable Oct.,2010 单芯高压电力电缆金属护套感应电流的研究之一 ——感应电流的计算和预控 徐 欣, 陈 彦 (苏州供电公司,江苏苏州215000) 摘要:对单芯电缆交叉互联金属护套感应电流进行了研究。为了控制实际电缆线路工程中单芯电缆的护套感 应电流,建立了复杂通道条件下,计算单芯电缆护套感应电流的数学模型,提出了通过调整电缆排列来预控 感应电流的方法,并编制了相应程序,以实现护套感应电流的计算和预控。全文共分两大部分:第一部分为感 应电流的计算和预控;第二部分为计算程序编制和应用。 关键词:单芯高压电力电缆;金属护套;感应电流;预控 中图分类号:TM247.1 文献标识码:A oftheInduced in Investigation CurrenttheMetallicSheath of CoreHVPowerCables.Part1 Single XUXin.etal Power Co.,Suzhou (SuzhouSupply 215000,China) metallic of to Abstract:Theinducedcurrentinthecross-bondedsheath corecableswas order single investigated.In in of core in modelto controltheinducedcurrentthemetallicsheath cablesactualcable mathematical single lines,a of tO calculatetheinducedcurrentundertheconditions cabletunnelsWaSestablished.Amethod complicated pre·con· troltheinducedcurrentmodificationofcable was wascom— by arrangementpresented.Thecorrespondingprogramme current inordertocalculateand theinduced inthemetallicsheath.Thisconsistsoftwo piled pre—control paper parts. the of
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