Multi physical field simulation of medium voltage switchgear and optimal design

In this paper, the temperature rise situation under normal operation of a 12kV medium voltage switchgear is studied through modeling and simulation method. Firstly, in the simulation analysis of the whole switchgear, based on the theory of eddy current field, gas flow field, and temperature field, t...

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Bibliographic Details
Published in2016 27th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV) Vol. 2; pp. 1 - 4
Main Authors Liuhuo Wang, Lijun Wang, Xiaolin Li, Jing Lin, Wensong Zheng, Shenli Jia
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.09.2016
Subjects
Computational modeling
Convection
Fluid flow
Insulation
Springs
Switchgear
Temperature distribution
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Summary:In this paper, the temperature rise situation under normal operation of a 12kV medium voltage switchgear is studied through modeling and simulation method. Firstly, in the simulation analysis of the whole switchgear, based on the theory of eddy current field, gas flow field, and temperature field, the temperature rise distribution of the switchgear under the condition of natural convection and forced convection is simulated and analyzed. Then, several improvement methods are taken to reduce the temperature rise that emerge in the switchgear, including using spring contact finger structure to replace flexible connection structure. The simulation results also show that the spring contact structure is beneficial to reduce the temperature rise of vacuum interrupter (VI) and mechanical connection part.
ISSN:1093-2941
DOI:10.1109/DEIV.2016.7763951