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Post-arc current significantly influences the interrupting process of breakers, which can reflect the appearance of the arc before current zero and the residual metal vapors in electrode distance after current zero. In order to investigate the characteristics of post-arc current in DC interruption, a high speed hybrid actuator was designed, and forced current zero method was used to carry out the...
The current zero period of vacuum arc determines the breaking performance of vacuum circuit breakers, and post-arc current is one of main parameters of current zero period. DC vacuum circuit breaker is one practical solution to solve the bottleneck of DC transmission circuit breaker. It is difficult to measure the post-arc current, when artificial current zero method is used to break the DC short...
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