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

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中壓交流金屬封閉開關設備絕緣試驗中難點問題探析

來源:電工電氣發(fā)布時間:2019-10-15 13:15 瀏覽次數(shù):735
中壓交流金屬封閉開關設備絕緣試驗中難點問題探析
 
李華良1,孫敏2,龐明明1,趙磊1,王丁1,吉小振1
(1 中國啟源工程設計研究院有限公司,陜西 西安 710018;2 西安交通大學 電氣工程學院,陜西 西安 710049)
 
    摘 要:因試驗人員對GB 3906—2006、IEC 62271-200:2011等標準的理解和執(zhí)行存在偏差,導致中壓交流金屬封閉開關設備在實際運行和試驗中出現(xiàn)許多問題。研究了國內外相關標準,對中壓開關設備絕緣試驗中大氣濕度修正、內外絕緣考核、雷電沖擊試驗程序及判據(jù)、觀察窗和活門的試驗、開關斷口的縱絕緣試驗等難點問題進行了深入剖析,并指出了實際試驗中應當注意的問題,為從事高壓試驗檢測的技術人員參考。
    關鍵詞:絕緣試驗;濕度修正;縱絕緣;內絕緣;活門
    中圖分類號:TM855     文獻標識碼:A     文章編號:1007-3175(2019)10-0061-06
 
Analysis of Difficulties in Insulation Test of Medium Voltage AC Metal-Enclosed Switchgear
 
LI Hua-liang1, SUN Min2, PANG Ming-ming1, ZHAO Lei1, WANG Ding1, JI Xiao-zhen1
(1 China Qiyuan Engineering Corporation, Xi'an 710018, China;
2 School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China)
 
    Abstract: Due to the deviations caused by testers’ understanding and executing of GB 3906—2006, IEC 62271-200:2011 etc standards, there are many problems arising in actual operation and test of medium voltage AC metal-enclosed switchgear. This paper researched on the relevant standards at home and abroad, and made a thorough analysis of the difficulties in the insulation test of medium voltage AC metalenclosed switchgear, such as humidity correction, examination of internal and external insulation, lightning impulse test procedure and criterion, examination of observation windows and shutter, longitudinal insulation test of switch, and pointed out the problems needed to pay attention in the actual test, which provides references for the technicists working on high-voltage test detection.
    Key words: insulation test; humidity correction; longitudinal insulation; internal insulation; shutter
 
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