GIS現(xiàn)場交流耐壓試驗中放電點定位方法的研究
高立超,楊志華,孫興彬,龔源,李佳其
(國網(wǎng)甘肅省電力公司電力科學(xué)研究院,甘肅 蘭州 730050)
摘 要:介紹了一種利用分段加壓和壓電薄膜傳感器相結(jié)合的氣體絕緣金屬封閉開關(guān)設(shè)備(GIS) 故障放電點定位方法,并結(jié)合某變電站110 kV GIS 設(shè)備交流耐壓試驗為例,給出了使用該定位方法對放電點的排查定位過程,試驗結(jié)果表明,該定位方法可以實現(xiàn)現(xiàn)場GIS 設(shè)備交流耐壓發(fā)生擊穿后故障點迅速準(zhǔn)確地定位。
關(guān)鍵詞:氣體絕緣金屬封閉開關(guān)設(shè)備(GIS);交流耐壓試驗;放電點定位
中圖分類號:TM595;TM855 文獻(xiàn)標(biāo)識碼:A 文章編號:1007-3175(2016)08-0043-04
Research on Discharging Point Location Method in Site Alternating Current Voltage Withstand Test of Gas-Insulated
Metal-Enclosed Switchgear
GAO Li-chao, YANG Zhi-hua, SUN Xing-bin, GONG Yuan, LI Jia-qi
(State Grid Gansu Electric Power Research Institute, Lanzhou 730050, China)
Abstract: Introduction was made to a kind of faults discharging point location method of gas-insulated metal-enclosed switchgear (GIS) combining subsection forcing with piezoelectric film sensor. Taking the alternating current (AC) voltage withstand test of 110 kV GIS in certain substation for example, this paper gave the checking location process for the discharging points with this location method. The test results show that this location method could realize faults point location rapidly and correctly after the AC voltage withstand of GIS breaking down.
Key words: gas-insulated metal-enclosed switchgear; alternating current voltage withstand test; discharging point location
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