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

Article retrieval

文章檢索

首頁 >> 文章檢索 >> 往年索引

500kV五邑變電站電容隔直裝置的應用分析

來源:電工電氣發(fā)布時間:2016-03-15 15:15 瀏覽次數:757

500kV五邑變電站電容隔直裝置的應用分析 

李艷嬌

廣東電網公司江門供電局,廣東 江門 529000 
 

摘要:以500kV五邑變電站為例,從電容隔直裝置的構成、基本原理及控制模式等方面,分析了該裝置的應用功能及運行注意事項,實際應用表明,通過在該變電站#2主變壓器中性點回路串接電容隔直裝置后,隔絕了大地系統(tǒng)中直流電流分量對主變壓器的影響,減少了損耗,確保了主變壓器的運行。
關鍵詞:變壓器;中性點;直流電流;電容隔直裝置
中圖分類號:TM403.5 文獻標識碼:B 文章編號:1007-3175(2013)07-0030-04


Application Analysis of Capacitive DC Blocking Device in 500kV Wuyi Substation 

LI Yan-jiao

Jiangmen Power Supply Bureau of Guangdong Power Grid Corporation, Jiangmen 529000, China 
 

Abstract: Taking 500kV Wuyi substation as an example, this paper analyzed application functions and cautions for operation of the device from the configuration of capacitive DC blocking device, basic principle and control mode etc aspects. The actual application indicates that the method that the neutral point circuit of main transformer No.2 was connected in series to the capacitive DC blocking device eliminates the impact of DC current component in earth system on the main transformer, which reduces losses, assuring operation of the main transformer.
Key words: transformer; neutral point; DC current; capacitive DC blocking device


[1] 張全元.變電運行現場技術問答[M].北京:中國電力出版社,2003.
[2] 童能高,陳潔.抑制主變壓器中性點入地直流電流的幾種措施[J].廣東電力,2009,22(10):13-15.
[3] 王曉京.500kV變壓器中性點串接小電抗器的應用[J].電力勘測設計,2009(1):48-51.
[4] 蒯狄正,萬達,鄒云.直流偏磁對變壓器的影響[J].中國電力,2004,37(8):41-43.
[5] 朱藝穎,蔣衛(wèi)平,曾昭華,印永華.抑制變壓器中性點直流電流的措施研究[J].中國電機工程學報,2005,25(13):2-6.
[6] 毛雪雁,宣曉華.500kV自耦變壓器中性點小電抗接地的研究[J].華東電力, 2005(5):26-29.