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| Temperature Rise Numerical Calculation of the Second Generation Gas Insulated Transmission Line |
| Li Bing, Xiao Dengming, Zhao Su, Zhang Hui |
| Department of Electrical Engineering Shanghai Jiao Tong University Shanghai 200030 China |
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Abstract Gas insulated transmission line (GIL) is used worldwide as its excellent performance. The heat dissipation of the insulating gas and the temperature rise effect are the key points of the design and on-line monitoring of the GIL. This paper builds a model of the second-generation GIL which contains the external air field, with 20%SF6-80%N2 as its insulating gas. The temperature rise is simulated by finite element method (FEM). The overall temperature distribution of GIL has been achieved, and the temperature rise of conductor and enclosure has also been derived. In comparison with the results achieved by analytical method, the effectiveness of the FEM method has been verified. The relevant factors that affect the temperature rise of the second-generation GIL are also simulated and analyzed. This paper provides a reference for the further application of the GIL.
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Received: 12 October 2015
Published: 19 July 2017
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2017, Vol. 32 
