介绍了作为大中型同步和异步电动机综合保护的微机型保护装置的设计研究情况。

The design and research of integrated protection device for large & medium synchronous and asynchronous motors with micro-computer is introduced.

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异步电动机同步化指绕线式异步电动机起动后，变成同步运行后不仅可以提高该机的自身的功率因数，还可以向电网提供一定的无功功率，提高整个系统的功率因数。

After started, induction motor is changed into synchronous operation not only to improve its power factor, but also to supply reactive power for power supply and improve system power factor.

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从发展趋向来讲、步进电动机已经能与直流电动机、异步电动机，以及同步电动机并列，从而成为电动机的一种基本类型。

From the development trend of speaking, the stepper motor has been with DC motor, induction motor, and the parallel synchronous motor, making it one of the basic types of motors.

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