Abstract:

In view of the influence of DC high current conditioning parameters on VI contact conditioning performance,the conditioning energy,contact stroke,synchronization between contact opening and capacitor discharge,arc injection mode and conditioning times on the coverage rate of vacuum arc abulation on contact surface are mainly studied.The results show that increasing conditioning energy,increasing contact stroke,adding low current striking arc and increasing conditioning times can improve contact conditioning effect.

Key words: current conditioning, vacuum interrupter, contact stroke, arc coverage