一起110kV避雷线发热问题的分析和处理  

Analysis and Treatment of a Heating Fault of 110 kV Lightning Wire

作　　者：许飞[1] 韦巍[1] 李恒灿[1] 农宇 

机构地区：[1]广西电网公司电力科学研究院,南宁530023 [2]广西电网公司百色供电局,百色533000

出　　处：《高压电器》2011年第9期113-116,120,共5页High Voltage Apparatus

摘　　要：110 kV避雷线发热非常罕见。笔者对接入平果牵引站的110 kV马平牵线的避雷线发热情况进行了现场调查和分析,得出避雷线发热与牵引站部分回流线被盗、地回流电流过大有关。同时利用CDEGS软件建立了仿真模型进行了计算,仿真结果显示,当牵引负荷较大时,避雷线中有较大牵引电流流过。在牵引站进行的现场测试验证了分析的正确性。文章最后提出了整改措施,保证了牵引站的运行安全。Field survey and analysis were performed about a traction line into Pingguo traction substation. It was found ground reflux current due to the the software CDEGS shows that larger. A test in the traction suggestions are offered to ensure ligbtning wire heating fault of 110 kV Maping that the heating was generated by exceeding missing of a length of reflux line. Simulation of the traction substation by greater traction current appears in lightning wire when traction load is substation verifies the correctness of the analysis. In addition, some safe operation of the traction substation.

关 键 词：牵引站 避雷线 发热 CDEGS 

分 类 号：TM862[电气工程—高电压与绝缘技术]