Abstract: Some problems exist in the rigid gas-insulated transmission line (GIL) of the three-phase common box, such as the overburden of the support structure and poor flexibility of temperature compensation. The engineering design with insufficient consideration could easily cause installation interference, support deformation, gas leakage, and other problems. This paper proposed to employ the 3D visual design to carry out the overall layout of the project. Moreover, it used the Workbench for mechanical properties analysis to solve problems, such as GIL line interference, temperature compensation, foundation load calculation, etc. This paper takes a 252 kV three-phase common box GIL engineering design as an example, discusses it from different aspects, such as the overall layout, temperature compensation, support and foundation load, on-site installation, and testing, to provide a reference for the three-phase common box GIL engineering design and industrialization development.

    Key words: three-phase common box; rigid gas-insulated transmission line; engineering design; temperature compensation; foundation load

 

參考文獻(xiàn)

[1] 劉澤洪，王承玉，路書軍，等. 蘇通綜合管廊工程特高壓 GIL 關(guān)鍵技術(shù)要求[J]. 電網(wǎng)技術(shù)，2020，44(6) ：2377-2385.

[2] 羅四嬌. GIS 母線設(shè)計(jì)及工程應(yīng)用[J] . 電氣時(shí)代，2017(11) ：63-66.

[3] 李要鋒，張書琴，張克選，等. 共箱 GIS 量產(chǎn)中若干問題的研究[J] . 高壓電器，2020，56(9) ：279-284.

[4] 胡文華，徐昌云，鄭孝清，等. GIL 在變電站改擴(kuò)建工程中的應(yīng)用[J] . 電力勘測(cè)設(shè)計(jì)，2020(8) ：11-19.

[5] 雷鳴，陳琳. 關(guān)于 GIL 和 GIS 母線產(chǎn)品基本結(jié)構(gòu)尺寸設(shè)計(jì)探討[J] . 高壓電器，2013，49(4) ：128-133.

[6] 賈耿鋒，李軍，蔣曉旭，等. GIS 母線用熱補(bǔ)償型波紋管伸縮量設(shè)計(jì)分析[J] . 電氣工程學(xué)報(bào)，2017(6) ：36-40.

[7] 全國高壓開關(guān)設(shè)備標(biāo)準(zhǔn)化技術(shù)委員會(huì). 額定電壓 72.5 kV 及以上剛性氣體絕緣輸電線路：GB/T 22383—2017[S]. 北京：中國標(biāo)準(zhǔn)出版社，2017 ：27-29.

[8] 全國高壓開關(guān)設(shè)備標(biāo)準(zhǔn)化技術(shù)委員會(huì). 額定電壓 72.5 kV 及以上氣體絕緣金屬封閉開關(guān)設(shè)備：GB/T 7674—2008[S]. 北京：中國標(biāo)準(zhǔn)出版社，2008 ：24-27.