变频器一拖多的电源切换方式应引起重视

Transducer for more motors of power swich will be importance

变频器的使用可以在很大程度上节能降耗,但由于其价格不菲,在很多场合都选择了一拖多的形式,这就要求电动机的电源在变频电源和工频电源之间进行切换。这实际上相当于两个不同的电源进行同期操作,而现有的操作方式存在着很大的隐患。

Using transducer in a large extent, will economize the power supply, so that in most cases, they will select one transducer for more motors. This requires the motor power switch between frequency conversation and industrial frequency supply, however, there is big potential trouble with this.