Based on the detail analysis of PMA of VCB in existence, a novel PMA of VCB, which is monostable, has two coils, is proposed.

• 在对目前已有的真空断路器永磁操动机构进行详细分析的基础上,本文提出了一种结构新颖的单稳态、双线圈结构的永磁操动机构。