TY - GEN
T1 - Numerical Study of Arc Motion Process Considering Ferromagnetic Material in Multiple Parallel Contacts System
AU - Zhang, Baoliang
AU - Yin, Jianning
AU - Zhang, Penghe
AU - Li, Xingwen
AU - Wang, Qian
AU - Hou, Guobin
AU - Deng, Xiaofeng
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/7/2
Y1 - 2018/7/2
N2 - Air circuit breaker (ACB) is widely used in power distribution system. The movable contact of ACB consist of multiple parallel contacts and the arc will be ignited when the short-circuit current appears. This paper focuses on the arc motion process in multiple parallel contacts system. A 3-D magneto-hydro-dynamic (MHD) model of multiple parallel contacts system is built. In this model, the nonlinear B-H curve of splitter plate is used in calculation. The magnetic vector potential approach is adopted to calculate the time-varying electromagnetic field produced by the current loop. The difference of voltage drop between near-anode and near-cathode is considered. In addition, the interaction among multiple parallel contacts is included in numerical simulation. Based on this calculation, the arc voltage, temperature and current density were obtained. The arc motion process is analyzed by current density and temperature. The simulation results show that the anode arc root will appears on multiple contacts with the increase of current. The upper arc moves faster than low arc after the arc column is divided by the splitter plate.
AB - Air circuit breaker (ACB) is widely used in power distribution system. The movable contact of ACB consist of multiple parallel contacts and the arc will be ignited when the short-circuit current appears. This paper focuses on the arc motion process in multiple parallel contacts system. A 3-D magneto-hydro-dynamic (MHD) model of multiple parallel contacts system is built. In this model, the nonlinear B-H curve of splitter plate is used in calculation. The magnetic vector potential approach is adopted to calculate the time-varying electromagnetic field produced by the current loop. The difference of voltage drop between near-anode and near-cathode is considered. In addition, the interaction among multiple parallel contacts is included in numerical simulation. Based on this calculation, the arc voltage, temperature and current density were obtained. The arc motion process is analyzed by current density and temperature. The simulation results show that the anode arc root will appears on multiple contacts with the increase of current. The upper arc moves faster than low arc after the arc column is divided by the splitter plate.
KW - Arc motion process
KW - Current density
KW - Magneto-hydro-dynamic (MHD)
KW - Multiple parallel contacts system
KW - Near-electrode voltage drop
UR - https://www.scopus.com/pages/publications/85061841018
U2 - 10.1109/HOLM.2018.8611635
DO - 10.1109/HOLM.2018.8611635
M3 - 会议稿件
AN - SCOPUS:85061841018
T3 - Electrical Contacts, Proceedings of the Annual Holm Conference on Electrical Contacts
SP - 211
EP - 214
BT - Electrical Contacts - 2018, Proceedings of the 64th IEEE Holm Conference on Electrical Contacts, Holm 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 64th IEEE Holm Conference on Electrical Contacts, Holm 2018
Y2 - 14 October 2018 through 18 October 2018
ER -