Publisher : The Korean Institute of Electrical Engineers
DOI : 10.5370/JEET.2014.9.1.254
Title & Authors
Analysis of SLF Interruption Performance of Self-Blast Circuit Breaker by Means of CFD Calculation Kim, Hong-Kyu; Chong, Jin-Kyo; Lee, Se-Hee;
This paper presents the performance analysis results of a short line fault interruption of a gas circuit breaker, particularly a self-blast type breaker. Hot gas flow analysis was carried out using a CFD calculation combined with the arc model and nozzle ablation model. To evaluate the interruption performance, the index function was defined using the pressure in the heating chamber and the density above the arc region. The simulation and test results showed that the gas flow field and suitable choice of an interruption performance index can be used to predict the interruption characteristics and provide guidelines for designing self-blast breakers with a higher interruption capability.
Gas circuit breaker;Short line fault;Performance index;Arc model;CFD calculation;
Electrohydrodynamic Analysis of Dielectric Guide Flow Due to Surface Charge Density Effects in Breakdown Region, Journal of Electrical Engineering and Technology, 2015, 10, 2, 647
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