199 / 2024-04-15 23:33:56

Influence of the Ignition Position of the Transverse Magnetic Field Contact on the Forced Characteristics of Vacuum Arc

vacuum arc,transverse magnetic field,forced characteristics,high current

For high current vacuum arc under transverse magnetic field, the ignition position is significantly related to the forced characteristics and interrupting capacity of the vacuum arc. The objective of this paper is to study the influence of the ignition position of the transverse magnetic field contact on the forced characteristics of the high current vacuum arc. To compare and evaluate the B-field distribution between the different kinds of contacts systems, static 3-D B-field simulations of the TMF contacts were performed. The conductivity of the arc plasma conductor G was obtained from the arc voltage V, the arc current I, and the geometry parameter of the arc plasma conductor. The Lorentz force of arc at the arc current peak was calculated under the assumption that one arc column was at the different position of the arm. To compare the Lorentz force of vacuum arc column, the influence of the ignition position of the TMF contacts on the forced characteristics will be determined. The calculation results will be presented in the full paper.