Current Chopping Characteristics of Two-Breaks Type Circuit Breaker During the Interruption of Small Inductive Current

Abstract

The difference of arc parameters for each breaking point causes the occrence of non-simultaneous eurrent chopping when the parallel capacitor applied for each breaking point has larger values. The voltage between inductive load terminals is determined by the average value of the chopped currents for individual breaking points, and is not increased obviously by the non-simultaneous occurrence of chopping, unless large values of parallel capacitor are applied.