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Anode surface temperature after current zero has a great impact on the interruption capacity of a vacuum interrupter. The objective of this paper is to theoretically investigate the relation between breakdown voltages and anode surface temperature after current zero. A heat conduction model was adopted to describe the temperature development of the anode, taking account of phase transition and evaporation...
Anode surface temperature after interrupting a vacuum arc has a significant impact on the interruption capacity of a vacuum circuit breaker (VCB) because it dominates metal vapor evaporation. The objective of this paper is to theoretically investigate the relationship between breakdown voltages and anode surface temperatures after current zero. A heat transfer model was established to describe the...
Anode activity is critical in a high-current interruption process of a vacuum interrupter. Under a high-current arc anode surface temperature may exceed melting point. Under such condition, an evaporation of metal vapor from an anode melting pool may play a role for a failure of the current interruption. The objective of this paper is to develop a 2D axisymmetric numerical simulation model of heat...
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