Applied physics
No. 5, 2001

Capacitance currents in power electronics devices and apparatus

E. F. Burtsev
The Lenin's All-Russian Electrical Engineering Institute, Moscow, Russia

   Using physical simulation it is shown experimentally that capacitance currents in electrical apparatus under high rate of voltage increase (decrease) (dU/dt) facilitate the arising of barrier discharges. The latter result in accelerated aging of isolation and may be a cause of apparatus failure because of electrical breakdown. The functioning of electrical capacitors under pulse conditions was investigated.

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