The study of dynamic behavior of permanent magnetic actuator (PMA) involves solution of an electrically, magnetically and mechanically coupled problem.
永磁操动机构动态特性的研究涉及电、磁、机械耦合场的求解。
By measuring the opening coil exciting time of Permanent Magnetic Actuator (PMA), a requirement of shortening the exciting time further is proposed.
通过测试永磁机构分闸线圈激磁时间，提出进一步缩短激磁时间的要求。
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