110kV倒送电带负荷校验实例分析  

110 kV Reverse Power Supply On-Load Test Example Analysis

作　　者：徐莹琳 林罗波 崔超[1] 董慧[1] XU Ying-lin;LIN Luo-bo;CUI Chao;DONG Hui(Huaneng Shandong Shidao Bay Nuclear Power Company, Rongcheng 264312, China)

机构地区：[1]华能山东石岛湾核电有限公司,山东荣成264312

出　　处：《电工电气》2017年第3期49-52,共4页Electrotechnics Electric

摘　　要：针对某110kV开关站及辅变倒送电期间负荷不足,辅变差动保护和线路保护无法校验的问题,进行了带负荷校验负荷计算,提出了临时负荷接入方案,采用租赁临时负荷的方法来验证辅变差动保护和线路保护。试验结果分析表明,该方法可靠地校验电流互感器CT极性和二次电流回路的正确性,也校验了辅变差动保护和线路保护。In view of the problems of certain110kV switch station and the auxiliary transformer during reverse power supply period,suchas insufficient load,unable verified auxiliary transformer differential protection and line protection,this paper carried out load calculation of onloadtest and proposed a temporary load accessing scheme.The rented temporary load method was adopted to verify auxiliary transformer differentialprotection and line protection.The test results show that this method can reliably verify the correctness of current transformer polarity andsecondary current circuit,as well as auxiliary transformer differential protection and line protection.

关 键 词：倒送电 保护 临时负荷 带负荷校验 

分 类 号：TM773[电气工程—电力系统及自动化]