Study on Temperature Rise Characteristics of C<sub>4</sub>F<sub>7</sub>N/CO<sub>2</sub> Mixed Gas GIL Busbar With Different Air Pressures and Mixing Ratios
Gas insulated transmission line is an effective way to solve the uneven energy distribution and unbalanced load center of gravity. The environment-friendly C<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">4</inf>F<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">7</inf>N/CO<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> mixed gas GIL has attracted much attention because of its greenhouse effect. At present, the temperature rise law of C<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">4</inf>F<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">7</inf>N/CO<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> mixture in GIL system is not clear. In this project, C<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">4</inf>F<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">7</inf>N/95%CO<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf>, 9%C<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">4</inf>F<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">7</inf>N/91%CO<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> and 15%C<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">4</inf>F<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">7</inf>N/85%CO<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> are used as insulation media under the conditions of 0.4 MPa, 0.6 MPa and 0.8 MPa. The calculation shows that the temperature rise of insulating gas in GIL is about 40~50°C, and the temperature rise of shell is 20~25°C. At the same time, increasing the inflation pressure and C4F7N content can not only reduce the temperature of the insulator inside the bus, but also effectively improve the conductivity of the bus. The results of the project will provide theoretical basis for the industrial application of environmentally friendly GIL insulating gas.
Authors
- Xiaojun Yang (ORCID: https://orcid.org/0000-0003-0045-5921)
- Tiansheng Shi (ORCID: https://orcid.org/0000-0001-6568-2303)
- Lu Zhang (ORCID: https://orcid.org/0000-0003-0800-4762)
- Nannan Zhang (ORCID: https://orcid.org/0000-0001-6747-8920)
- Zhao Liu (ORCID: https://orcid.org/0000-0001-9529-3720)
- Fan Liu (ORCID: https://orcid.org/0000-0002-6063-3358)
- Yao Yao (ORCID: https://orcid.org/0000-0003-3068-766X)
- Junfeng Li (ORCID: https://orcid.org/0000-0001-9921-4727)
Publication Details
- Published
- 2024-10-25
- DOI
- https://doi.org/10.1109/appeec61255.2024.10922349
- Primary Topic
- Spacecraft and Cryogenic Technologies
- Type
- article
- Field-Weighted Citation Impact
- 0.00