Computer Simulation of Interaction of Arc-Gas Flow in SF_6 Puffer Circuit Breaker Considering Effects of Ablated Nozzle Vapor

摘要

A computer simulation is performed in a whole breaking period of gas circuit breaker (GOB) before current zero region. F.ulcr equation is solved using Finite Volume Fluid in Cell (FVFLIC) method. In order to consider the effects of arc, electric field intensity and radiation transport are calculated using Finite Element Method (FEM) and Partial Characteristics (PC), respectively. Also, the mass of ablated nozzle vapor is calculated, and its effects are investigated through computer simulation. Improved simulation results are obtained and compared with the experimental one.