The interruption reliability of DC circuit breakers hinges on the competition between transient recovery voltage (TRV) and dielectric recovery, with TRV being highly sensitive to arc parameters. To investigate this post-arc voltage recovery process, we develop a two-dimensional magnetohydrodynamic (MHD) arc model that...
Cumulative electrical erosion during repeated interruption is a key factor limiting the service lifetime of low-voltage direct current switching devices. In this work, the cumulative erosion behavior of air-switch contacts under magnetically blown arcs was investigated through experiments and numerical simulations. The...
Jing Li, Y. Wang, Wei Duan et al.· Journal of Physics D: Applie...· 0 citations
During the tripping of a direct current (DC) vacuum circuit breaker, a plasma arc is generated between the contacts. Different tripping speeds alter the plasma diffusion space between the contacts, affecting the plasma’s longitudinal and axial diffusion rates. Under identical commutation gap conditions, tripping speed...
Chong-Yang Huang, Fei-Ran Zhang, S. Fu et al.· Engineering Research Express· 0 citations
We use cookies to run the site and, with your consent, for analytics and to show ads.
See our Cookie Policy.
