GIS設備同頻同相耐壓試驗風險分析與抑制措施
楊新春，邱煒，黃昆，羅楊，田子山，張榮嶸
（國網成都供電公司，四川 成都 610000）
摘 要：檢查氣體絕緣金屬封閉開關(GIS) 設備在擴建或大修后絕緣性能是否良好最有效的方式是現場交流耐壓試驗。在GIS 設備同頻同相耐壓試驗方法現場應用的基礎上，分析了同頻同相耐壓試驗過程中的主要風險點，并提出通過調整變電站運行方式，采用X 射線可視化技術確保隔離開關可靠分閘，確認加壓回路相別，以及采用特高頻或超聲波局部放電檢測方法監視隔離開關絕緣狀態等措施來降低試驗過程中的風險，取得了良好效果。
關鍵詞：氣體絕緣金屬封閉開關；交流耐壓試驗；同頻同相；風險點分析；抑制措施
中圖分類號：TM591；TM855 文獻標識碼：A 文章編號：1007-3175(2017)02-0052-04
Risk Analysis and Suppression Measure of Same Frequency and Phase
Withstand Voltage Test of Gas Insulated Switchgear Equipment
YANG Xin-chun, QIU Wei, HUANG Kun, LUO Yang, TIAN Zi-shan, ZHANG Rong-rong
（State Grid Chengdu Power Supply Company, Chengdu 610000, China）
Abstract: Onsite alternating current withstand voltage test is the most effective way to verify the insulating property of gas insulated switchgear (GIS) equipment after extension or overhaul. On the basis of onsite application of same frequency and phase withstand voltage test of GIS equipment, this paper analyzed the main risk point in the process of same frequency and phase withstand voltage test. Transformer substation operation mode was adjusted and X-ray visualization technology was adopted to guarantee the disconnector tripping reliably and to affirm the pressing circuit phase. Ultrahigh frequency or ultrasonic partial discharge detection etc measures were used to monitor the insulation state of disconnector to reduce the risk in the test process with good results.
Key words: gas insulated switchgear; alternating current withstand voltage test; same frequency and phase; risk point analysis; suppression
measure
參考文獻
[1] DL/T 555—2004 氣體絕緣金屬封閉開關設備現場耐壓及絕緣試驗導則[S].
[2] DL/T 617—2010 氣體絕緣金屬封閉開關設備技術條件[S].
[3] DL/T 618—2011 氣體絕緣金屬封閉開關設備現場交接試驗規程[S].
[4] 印華，王謙，龍英凱. GIS同頻同相交流耐壓試驗技術解析[J]. 智能電網，2015，3(7)：679-682.
