earticle

영어

Electrical industry is with the rapid development. Vacuum circuit breaker, with advantages of good arc resistance, suitable for frequent operation, long electrical service life, high reliability, long maintenance cycle, has been widely used in many applications. Modern conditions need high voltage vacuum circuit breaker and it has a difference with common vacuum circuit breaker. Mechanism characteristics are a most important aspect for the vacuum circuit breaker and more attention should be paid attention. In this paper, mechanism characteristics are studied for a certain model of vacuum circuit breaker and a simulation method is developed. With the method, curves variation of travel, speed, length increasing of contact spring with time has been developed and given in the paper. With responsible device, some parameters are tested in the experiment. The test results show that the simulation results are coincidence with the test results, which mean the effect of the simulation method. Mechanism characteristics can be well described with the model the paper proposed.