某500kV变电站直流融冰装置35kV管母故障分析  

Fault Analysis for 35 k V Pipe Type Busbar of DC De- icer in 500 k V Substation

作　　者：郭飞[1] 邓元实[2] 刘益岑[2] 蓝彬桓 

机构地区：[1]国网四川省电力公司都江堰市供电分公司,四川成都610072 [2]国网四川省电力公司电力科学研究院,四川成都610072 [3]重庆大学,重庆400044

出　　处：《四川电力技术》2014年第5期24-26,31,共4页Sichuan Electric Power Technology

摘　　要：某500 k V变电站装设的直流融冰装置在2014年融冰时发生35 k V交流侧管母及绝缘烧毁事故,事后相关部门对故障装置进行了细致的交流耐压试验,通过结合试验现象、数据以及相关电路模型,确定了故障产生的原因主要是管母铜带缠绕方式存在隐患,并提出了相应的改进措施。此案例对中国其他类似的直流融冰装置故障分析具有一定的借鉴意义。The pipe type busbar and insulation of DC de -icer installed in 35 kV AC sides were burned down during the ice melting in 2014 in a 500 kV substation .After the accident , plenty of AC voltage withstand tests are carried out by the relevant departments.Through combining the experimental phenomena , test data and the related circuit model , it is determined that the fault is mainly caused by the defects among the winding way of copper strips and some corresponding improvement meas -ures are put forward , which is of significance for the fault analysis of other similar DC de -icer in China .

关 键 词：融冰装置 35kV管母 交流耐压试验 故障分析 

分 类 号：TM855[电气工程—高电压与绝缘技术]