同步电动机励磁电源及投励时间的整定

Excitation power of synchronous motor and steady of exciting time

同步电动机没有启动转矩 ,采用异步启动法启动 ,要求励磁电源按照转子滑差顺极性自动投励。

The synchronous motor hasn't start torque.It uses asynchronous start ,so it demands excitition power auto exciting in turn hased on motor slide difference.