GIS交流耐壓試驗中絕緣缺陷的高效發(fā)現(xiàn) 

嚴鵬志，黃烜城，劉全，趙凱強 
江蘇方天電力技術(shù)有限公司，江蘇 南京 211102 
 

摘 要：介紹了國家電網(wǎng)公司對氣體絕緣開關(guān)設(shè)備(GIS) 類設(shè)備交流耐壓的相關(guān)標準，比較了兩種輔助檢測方法特高頻法(UHF) 和超聲波法(AE) 的差異及對同類信號源的檢測效果。針對兩起耐壓試驗擊穿事件，對試驗中絕緣缺陷發(fā)現(xiàn)的過程進行分析，結(jié)果表明從嚴執(zhí)行標準對交接耐壓試驗中高效發(fā)現(xiàn)設(shè)備絕緣隱患具有重要作用，綜合運用UHF 和AE 檢測法，實現(xiàn)兩者的優(yōu)勢互補，可排除干擾因素對判讀信號的影響。
關(guān)鍵詞：：氣體絕緣開關(guān)設(shè)備；交流耐壓試驗；絕緣缺陷
中圖分類號：TM855 文獻標識碼：B 文章編號：1007-3175(2015)12-0033-03

Efficient Found of Insulation Defect in Alternating Current Withstand Voltage Test of Gas Insulated Switchgear 

YAN Peng-zhi, HUANG Xuan-cheng, LIU Quan, ZHAO Kai-qiang 
Jiangsu Frontier Electric Technology Co., Ltd, Nanjing 211102, China 
 

Abstract: Introduction was made to the corresponding standard of alternating current withstand voltage test of gas insulated switchgear (GIS) type in state grid corporation of China. This paper compared the differences of two kinds of auxiliary detection methods, ultrahigh frequency (UHF) and ultrasonic (AE) and the detection effect of similar signal sources. Aiming at the two breakdown events of withstand voltage tests, this paper analyzed the process of insulation defect discovery in test. The results show that the seriously executive standard plays an important role in finding the hidden dangers of equipment insulation for alternating current withstand voltage tests. The comprehensive application of UHF and AE detection methods could compensate each other's advantages, suppressing the impacts of interference factors on identification signals.
Key words: gas insulated switchgear; alternating current withstand voltage test; insulation defect

參考文獻
[1] 張顯友，陳偉. 高壓電器用耐SF6新型絕緣材料的研究進展[J]. 絕緣材料通訊，2000(2)：21-24.
[2] 李潤春，王露鋼，刁志昆.GIS 組合電器的安裝工藝和關(guān)鍵控制要點[J]. 電力建設(shè)，2010，31(1)：37-39.
[3] 沈其工，方瑜，周澤存，王大忠. 高電壓技術(shù)[M].4版. 北京：中國電力出版社，2013.
[4] 吳張建，李成榕，齊波，郝震，耿弼博. GIS局部放電檢測中特高頻法與超聲波法靈敏度的對比研究[J]. 現(xiàn)代電力，2010，27(3)：31-36.
[5] 李德軍，沈威，郭志強. GIS局部放電常規(guī)檢測和超聲波檢測方法的應用比較[J]. 高壓器，2009，45(3)：99-103.