@inproceedings{977d13d003b0411bb0ae449096a6296e,
title = "Three-Dimensional Arc MHD Simulation of MCB Considering Contacts and Splitter Plates Ablation",
abstract = "The accurate simulation model of arc magnetohydrodynamics requires consideration of the ablation of contacts and splitters plates. This paper establishes the energy balance equation based on the different action mechanisms of the arc-anode and arc-cathode. It introduces calculation formulas for arc root radius and energy distribution proportion to develop the evaporation ablation model of metal materials. Additionally, nonlinear resistance is incorporated to compute the sheath voltage of the splitter plates. The external AC circuit is coupled to realize data linkage between the external circuit and dynamic arc of the miniature circuit breaker (MCB). Additionally, it considers the influence of copper vapor produced by contacts and iron vapor produced by splitter plates mixed with air on thermodynamics, transport and radiative properties of plasma. Furthermore, a three-dimensional calculation model is employed to more accurately simulate the structure of contacts and splitter plates. The simulation results show that considering the influence of ablation vapor, the arc voltage decreases and the arc motion slows down. The structure of arc extinguish chamber can be optimized according to the generation position and diffusion of ablation vapor.",
keywords = "MCB, ablation vapor, arc root radius, energy balance equation",
author = "Qing Zhang and Weidong Cao and Chaojie Luo and Xingwen Li and Jianning Yin and Jindong Huo",
note = "Publisher Copyright: {\textcopyright} 2024 IEEE.; 69th IEEE Holm Conference on Electrical Contacts, HOLM 2024 ; Conference date: 06-10-2024 Through 10-10-2024",
year = "2024",
doi = "10.1109/HOLM56222.2024.10768341",
language = "英语",
series = "Electrical Contacts, Proceedings of the Annual Holm Conference on Electrical Contacts",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "Electrical Contacts 2024 - Proceedings of the 69th IEEE Holm Conference on Electrical Contacts, HOLM 2024",
}