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1·In addition, the output frequency of a motor generator set shall not vary by more than 5% when operated at rated output voltage and current.

另外，当发电机以额定电压啊，电流运行时，其出力(输出功率)频率允许在上下5%内跳动。

2·If one set stops and reverse power protection is not provided, the set still running will drive the set that has stopped. The generator on the set that has stopped will act as a motor.

如果一台发电机组没有运转，并且没有逆功率继电器保护，运转的机组就会驱动这个机组，这台机组上的发电机则变成电动机运行。

3·This equipment adopts a thyristor excitation DC generator-motor set with a field weakening regulation device working in step with loading.

该设备采用可控硅励磁直流发电机——直流电动机系统，具有取决于负载的弱磁调节装置。因此操作起来极为方便。

4·To summary the coal of vice-well continuous current generator-motor the set drag and hoists of the control system reform to into practice the methods, and proceeds to that system synopsis analysis.

总结煤矿副井直流发电机-电动机组提升电控系统改造的实施方法，对该系统进行简要分析。

5·The UPS of Motor-Generator set type have advantages such as reliability of operation, lower requirement for maintenance technique, excellent resistibility to interference, lower cost etc.

机组型不停电电源系统具有工作可靠、对维护技术要求不高、抗强电干扰性能好，价廉等优点。