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Axial magnetic field (AMF) contact structures are often adopted for promoting interruption ability in the vacuum interrupters. After current-zero, there still exists residual magnetic field in the contact gap result from the eddy current. As a consequence, the plasma dissipation process which recovers the dielectric strength of the vacuum interrupter, was influenced immediately in the post-arc phase...
Breakdowns in the post-arc phase are affected by a combination effect of both plasma and metal vapor. The objective of this paper is to study the breakdown boundary as a function of plasma and metal vapor density. A fully kinetic PIC-MCC model was developed to study breakdowns in the post-arc phase. Relevant collisions were taken into consideration, and an external circuit was added to the model to...
A sheath recovery process dominants the initial stage of a dielectric recovery process after interrupting a vacuum arc current. The objective of this paper is to model a post-arc sheath recovery process by using PIC-MCC method. Second electrons, external circuit, and fundamental collisions between particles were taken into considerate in the model. The result shows that the amplitude of post-arc current...
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