続流遮断型アークホーンの遮断部溶発を考慮した数値流体解析手法の開発

抄録

This paper has presented a computational fluid dynamics simulation technique for Fault Current Interrupting Arcing Horns (FCIAH) to obtain the pressure and wear mass by an arc in the interruption core. The physical quantities have been calculated spatially and temporally by applying heat source inside the interruption core corresponding to arc power and solving conservation laws step by step taking into account the physical property and ablation. The validity of the simulation technique has been verified by comparing the pressure and wear mass obtained from short-circuit test results.