• [1]王志剛,金光耀,柏長宇,等.SF6/N2混合氣體1 100 kV GIL産品研制及應用[J].高壓電器,2019,55(08):16-21,29.[doi:10.13296/j.1001-1609.hva.2019.08.003 ]
           WANG Zhigang,JIN Guangyao,BAI Changyu,et al.Development and Application of SF6/N2 Mixed Gas 1 100 kV GIL Product[J].High Voltage Apparatus,2019,55(08):16-21,29.[doi:10.13296/j.1001-1609.hva.2019.08.003 ]
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          SF6/N2混合氣體1 100 kV GIL産品研制及應用()
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          《高壓電器》[ISSN:1001-1609/CN:61-11271/TM]

          卷:
          第55卷
          期數:
          2019年08期
          頁碼:
          16-21,29
          欄目:
          研究與分析
          出版日期:
          2019-08-15

          文章信息/Info

          Title:
          Development and Application of SF6/N2 Mixed Gas 1 100 kV GIL Product
          作者:
          王志剛 金光耀 柏長宇 李麗娜 裴 濤 葉三排
          (平高集團有限公司, 河南 平頂山 467001)
          Author(s):
          WANG Zhigang JIN Guangyao BAI Changyu LI Lina PEI Tao YE Sanpai
          (Pinggao Group Co., Ltd., Henan Pingdingshan 467001, China)
          關鍵詞:
          SF6/N2 1 100 kV GIL 絕緣特性 溫升特性 帶電考核
          Keywords:
          SF6/N2 1 100 kV GIL dielectric characteristic temperature rise characteristic live examination
          DOI:
          10.13296/j.1001-1609.hva.2019.08.003
          摘要:
          1 100 kV氣體絕緣金屬封閉輸電線路(GIL)中SF6使用量較大,由于SF6氣體具有很大 的溫室效應,因此,采用SF6/N2混合氣體作爲絕緣介質以減少SF6氣體的使用量具有重要的社會 意義。通過研究SF6/N2混合氣體的絕緣、溫升等特性,提出了適用于1 100 kV GIL 的SF6/N2混 合氣體壓力及混合比,研制了1 100 kV GIL樣機,並進行了絕緣、溫升試驗研究,試驗結果與 仿真一致:混合氣體壓力不變的條件下,氣體的絕緣強度隨SF6比例的增加而增大,GIL導體、 觸指溫升隨SF6比例的增加而降低,殼體溫升與混合氣體中SF6比例的關系不大;在相同絕緣耐 受場強條件下,SF6/N2混合氣體壓力與純SF6氣體壓力成正相關關系,且混合氣體中SF6比例越 低,氣體壓力增加的幅度越大。研制的SF6/N2混合氣體絕緣1 100 kV GIL樣機通過型式試驗及 長期帶電運行試驗,驗證了産品長期帶電運行的可靠性。
          Abstract:
          SF6 is widely used in 1 100 kV gas-insulated metal-enclosed line(GIL), because the large greenhouse effect of SF6, using SF6/N2 as insulation medium to reduce the usage of SF6 has important social significance. By researching the insulation, temperature rise and other characteristics of SF6/N2 mixed gas, the pressure and mixing ratio of SF6/N2 mixed gas suitable for 1 100 kV GIL is put forward, a prototype of 1 100 kV GIL is developed and produced, and carried out the dielectric and temperature-rise tests. The tested results are same as the simulation: in the premise of mixed gas of constant pressure, the dielectric strength of the gas enhances with the increasing of SF6 proportion, the temperature rise of GIL conductor and contact fingers decreases with the increasing of SF6 proportion, the temperature rise of enclosure has little relation with the SF6 proportion in mixed gas; in the condition of the same dielectric withstand field strength, the SF6/N2 mixed gas pressure is positively correlated with pure SF6 gas pressure, the lower the proportion of SF6 in the mixed gas, the greater the increase of the gas pressure. The developed SF6/N2 mixed gas insulating 1 100 kV GIL prototype has passed through the type test and long-term live operation test , which verified the reliability of the product in long-term live operation.

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          備注/Memo

          備注/Memo:
          王志剛(1986—),男,工程師,碩士,主要從事輸變電開關設備研究。收稿日期:2019-03-17; 修回日期:2019-05-21 基金項目:國家電網公司總部科技項目資助(SF6/N2混合氣體隔離接地開關與GIL産品樣機研制) 。
          更新日期/Last Update: 2019-08-16