500kV输电线路参数测试过程中的感应电压分析  

Analysis of Induced Voltage in Parameter Testing of 500 kV Transmission Line

作　　者：王驰 梁沛 张程飞 张海东 WANG Chi;LIANG Pei;ZHANG Chengfei;ZHANG Haidong(State Grid Jiangsu Electric Power Engineering Consulting Co.,Ltd.,Nanjing 210000,China)

机构地区：[1]国网江苏省电力工程咨询有限公司,江苏南京210000

出　　处：《通信电源技术》2025年第3期67-69,共3页Telecom Power Technology

摘　　要：线路参数测试是输变电工程投运验收的必备环节之一,其测试结果的准确性直接关系到电力系统的安全稳定运行。线路参数测试过程中,邻近运行线路所产生的感应电压和电流是影响测试结果准确性和测试人员安全性的关键因素,但目前缺乏有效的感应电压和电流评估方法。结合有限元分析方法,研究某500 kV输变电工程线路参数测试过程中的感应电压和电流分布情况,并将其与现场实测结果进行对比分析,探讨感应电压产生的原因及其限制措施,为提升线路参数测试的安全性和准确性提供一定的技术参考。Line parameter testing is one of the necessary links in the acceptance of power transmission and transformation projects,and the accuracy of its test results is directly related to the safe and stable operation of power system.In the process of line parameter testing,the induced voltage and current generated by adjacent running lines are the key factors affecting the accuracy of test results and the safety of testers,but there is no effective evaluation method for induced voltage and current at present.Combined with the finite element analysis method,the distribution of induced voltage and current during the line parameter test of a 500 kV power transmission and transformation project is studied,and compared with the field measurement results,and the causes of induced voltage and its limiting measures are discussed,so as to provide certain technical reference for improving the safety and accuracy of line parameter test.

关 键 词：感应电压 有限元法 线路参数测试 

分 类 号：TM7[电气工程—电力系统及自动化]