双电源励磁谐振在电缆耐压试验中的应用研究  

Application Research of Double Power Excitation Resonance in Cable Withstand Voltage Test

作　　者：严鹏志 蒋琛[1] 黄烜城 李维[1] 

机构地区：[1]江苏方天电力技术有限公司,江苏南京211102

出　　处：《电工电气》2016年第1期4-7,共4页Electrotechnics Electric

摘　　要：针对220 k V长距离交联聚乙烯电缆现场耐压试验中励磁变有功出力不足的问题,介绍了一种双励磁电源谐振耐压试验技术。阐述了单电源励磁技术与双电源励磁技术的工作原理,对两种方式进行了对比分析,并分别给出了单电源方式参数及双电源方式参数计算过程,经现场试验证明,该技术能够满足电缆耐压试验中谐振电压的要求。In allusion to the questions of active power undercapacity of excitation transformer in field withstand voltage test of 220 kV long distance XLPE cable, introduction was made to a kind of double power excitation resonance withstand voltage test technique. This paper expounded the working principles of single power excitation and double power excitation technique, carrying out contrastive analysis of the two modes and giving parameters calculation processes of single power and double power modes. Field test results indicate that this tech- nique can meet requirements of resonance voltage in cable withstand voltage test.

关 键 词：电缆耐压 串联谐振 并联补偿 双电源励磁 

分 类 号：TM75[电气工程—电力系统及自动化]