1 100 kV GIS/GIL產(chǎn)品電氣試驗專用工裝的設(shè)計
吉小振,李華良,龐明明,吳耿博,景亞科
(中國啟源工程設(shè)計研究院有限公司,陜西 西安 710018)
摘 要:氣體絕緣開關(guān)設(shè)備 (GIS) 和氣體絕緣輸電線路 (GIL) 產(chǎn)品的出廠電氣試驗通常是在總裝車間內(nèi)進(jìn)行的,根據(jù)某 1 100 kV GIS/GIL 總裝車間電氣試驗需求,設(shè)計了滿足工頻耐壓試驗、局放試驗及沖擊試驗的專用工裝。采用六氟化硫(SF6)氣體絕緣試驗變壓器和沖擊發(fā)生器降低了廠房高度,節(jié)約了廠房建設(shè)投資;為確定工頻電源補(bǔ)償容量,計算了計及試驗工裝后的負(fù)載電容電流,還利用 ATP-EMTP 評估了 GIS/GIL 工裝電容、電阻和電感對雷電沖擊試驗波形參數(shù)的影響,可供相關(guān)的試驗技術(shù)人員參考。
關(guān)鍵詞:氣體絕緣開關(guān)設(shè)備;試驗工裝;局部放電;電氣試驗
中圖分類號:TM866 文獻(xiàn)標(biāo)識碼:B 文章編號:1007-3175(2021)05-0059-05
Design of Special Tooling for Electrical Test of 1 100 kV GIS/GIL Products
JI Xiao-zhen, LI Hua-liang, PANG Ming-ming, WU Geng-bo, JING Ya-ke
(China Qiyuan Engineering Corporation, Xi'an 710018, China)
Abstract: The electrical test of GIS/GIL is usually carried out in assembly workshop. Due to product assembly, inflation and standing time is long and electrical test time is short. In order to improve test efficiency, the manufacturers usually adopt the technological process of assembling multiple products at the same time and then to conduct electrical test one by one. Therefore, the design of special electrical test apparatus is particularly important. According to the electrical test demand of an 1 100 kV GIS/GIL assembly workshop, the special test apparatus is designed to meet the demand of power frequency withstand voltage test, partial discharge test and impulse voltage test. The SF6 type test transformer and impulse voltage generator are used to reduce the height of workshop and save the construction investment. In order to determine the compensation capacity of power supply, the load capacitance current considering test apparatus is taken into account and calculated. In addition, ATP-EMTP is used to evaluate the influence of GIS/GIL capacitance, resistance and inductance on lightning impulse test waveform parameters, which can be referred by relevant test technicians.
Key words: gas insulated switchgear; test apparatus; partial discharge; electrical test
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