7th International Conference on Electric Power Equipment– Switching Technology (ICEPE 2024)

20 / 2024-03-27 17:21:35

3D Pic-Mcc simulation of post-arc particles expansion for curved contact under different metal vapour density

vacuum arc,post-arc,pic-mcc

Curved contact is a vacuum interrupter contact structure with excellent interrupting performance. The process of post arc dielectric recovery during the disconnection process is not yet clear. However, one-dimensional and two-dimensional Particle-In-Cell/Monte Carlo (Pic-Mcc) models cannot accurately describe this process. This article establishes a three-dimensional Pic-Mcc model for the dielectric recovery process after vacuum arc of curved contacts. Under different metal vapour density, the particle diffusion process and particle characteristics of curved contact in the post-arc phase were compared and analyzed.