雙電源勵磁諧振在電纜耐壓試驗中的應(yīng)用研究
嚴鵬志,蔣琛,黃烜城,李維
(江蘇方天電力技術(shù)有限公司,江蘇 南京 211102)
摘 要:針對220 kV 長距離交聯(lián)聚乙烯電纜現(xiàn)場耐壓試驗中勵磁變有功出力不足的問題,介紹了一種雙勵磁電源諧振耐壓試驗技術(shù)。闡述了單電源勵磁技術(shù)與雙電源勵磁技術(shù)的工作原理,對兩種方式進行了對比分析,并分別給出了單電源方式參數(shù)及雙電源方式參數(shù)計算過程,經(jīng)現(xiàn)場試驗證明,該技術(shù)能夠滿足電纜耐壓試驗中諧振電壓的要求。
關(guān)鍵詞:電纜耐壓;串聯(lián)諧振;并聯(lián)補償;雙電源勵磁
中圖分類號:TM206 文獻標識碼:A 文章編號:1007-3175(2016)01-0004-04
Application Research of Double Power Excitation Resonance in Cable Withstand Voltage Test
YAN Peng-zhi, JIANG Chen, HUANG Xuan-cheng, LI Wei
(Jiangsu Frontier Electric Technology Co., Ltd, Nanjing 2111 02, China)
Abstract: In allusion to the questions of active power undercapacity of excitation transformer in field withstand voltage test of 220 kV long distance XLPE cable, introduction was made to a kind of double power excitation resonance withstand voltage test technique. This paper expounded the working principles of single power excitation and double power excitation technique, carrying out contrastive analysis of the two modes and giving parameters calculation processes of single power and double power modes. Field test results indicate that this technique can meet requirements of resonance voltage in cable withstand voltage test.
Key words: cable withstand voltage; voltage resonance; parallel compensation; double power excitation
參考文獻
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[2] GB/Z 18890.1—2002 額定電壓220 kV(U m=252 kV) 交聯(lián)聚乙烯絕緣電力電纜及其附件 第1 部分 試驗方法和要求[S].
[3] 林曉宇,黃銳,黃友滔. 交聯(lián)聚乙烯電纜現(xiàn)場交流耐壓試驗[J]. 高壓電器,2006,42(5):390-392.