The paper presents two kinds of the straight type polarized magnetic system that can be used in contactor, breaker and hybrid electrical appliance, and analyzed the working principle.

• 本文给出了两种结构的可用于接触器、断路器及混合式电路的直动式极化磁系统,分析了其工作原理,并根据其等效磁路对其进行了计算。