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

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110 kV倒送電帶負荷校驗實例分析

來源:電工電氣發(fā)布時間:2017-03-24 09:24 瀏覽次數(shù):8
110 kV倒送電帶負荷校驗實例分析
 
徐瑩琳,林羅波,崔超,董慧
(華能山東石島灣核電有限公司,山東 榮成 264312)
 
    摘 要:針對某110 kV 開關(guān)站及輔變倒送電期間負荷不足,輔變差動保護和線路保護無法校驗的問題,進行了帶負荷校驗負荷計算,提出了臨時負荷接入方案,采用租賃臨時負荷的方法來驗證輔變差動保護和線路保護。試驗結(jié)果分析表明,該方法可靠地校驗電流互感器CT 極性和二次電流回路的正確性,也校驗了輔變差動保護和線路保護。
    關(guān)鍵詞:倒送電;保護;臨時負荷;帶負荷校驗
    中圖分類號:TM773     文獻標(biāo)識碼:B     文章編號: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
 
參考文獻
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