Tuesday 8
A. Arcs
Chair: J. Yan - Each talk is 10'+2' duration
› 14:55 - 15:10 (15min)
› Cabannes
Numerical approach to pressure rise due to short-circuit fault arc in the metal-clad switchgears
Mikimasa Iwata  1, *@  , Tsukasa Miyagi  1  , Yutaka Goda  1  , Yuko Suzuki  1  , Koji Shirai  1  
1 : Central Research Institute of Electric Power Industry (CRIEPI)
* : Corresponding author

This paper presents the CFD calculation results of the pressure rise due to the High Energy Arcing Faults (HEAFs) in the cable compartment of the metal-clad switchgears. The calculations were carried out considering the propagation of the hot gases from the cable compartment to the outside and the came-off of the compartment roof panel that was observed in the arc tests. The calculated pressure development was in good agreement with the measured one.


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