Investigation of an SF6-selfblast circuit breaker

摘要

Simulations of the switching process of an SF6-selfblast test circuit breaker have been performed and compared with experimental results by measuring voltage, current and pressure build-up. Arc radiation has been considered with the PI-radiation model. To include turbulence effects the shear stress transport model was applied. A comparison of the measured voltage, pressure and nozzle ablation in the test circuit breaker with the calculations is used to show the precision of the simulation tool.