The UPS of Motor-Generatorset 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。
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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.