Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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110 kV倒送电带负荷校验实例分析

来源:电工电气发布时间:2017-03-24 09:24 浏览次数:8
110 kV倒送电带负荷校验实例分析
 
徐莹琳,林罗波,崔超,董慧
(华能山东石岛湾核电有限公司,山东 荣成 264312)
 
    摘 要:针对某110 kV 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。
    关键词:倒送电;保护;临时负荷;带负荷校验
    中图分类号:TM773     文献标识码:B     文章编号:1007-3175(2017)03-0049-04
 
110 kV Reverse Power Supply On-Load Test Example Analysis
 
XU Ying-lin, LIN Luo-bo, CUI Chao, DONG Hui
(Huaneng Shandong Shidao Bay Nuclear Power Company, Rongcheng 264312, China)
 
    Abstract: In view of the problems of certain 110 kV switch station and the auxiliary transformer during reverse power supply period, such as insufficient load, unable verified auxiliary transformer differential protection and line protection, this paper carried out load calculation of onload test and proposed a temporary load accessing scheme. The rented temporary load method was adopted to verify auxiliary transformer differential protection and line protection. The test results show that this method can reliably verify the correctness of current transformer polarity and secondary current circuit, as well as auxiliary transformer differential protection and line protection.
    Key words: reverse power supply; protection; temporary load; on-load test
 
参考文献
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