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Simulation Research on Electric Field Distribution of 10KV Vacuum Circuit Breaker based on ANSYS

Taking the 10kV vacuum circuit breaker as an example, the ANSYS simulation software is used to simulate the electric field distribution in the vacuum interrupter. It is found that the different opening distances between the contacts have a direct influence on the distribution and size of the electric field. When the distance between the contacts is extremely small, it is easy to cause a gap breakdown between the contacts. Therefore, we compare the electric field results obtained under different opening distances, keep the contact spacing within a reasonable range, prevent the breakdown phenomenon, and reasonably improve the design of the circuit breaker and increase the service life of the vacuum bubble.