The switch element generates an alternatecurrent voltage having a quasi-higher frequency from a direct current voltage.
所述开关元件从直流电压中产生具有第一频率的第一交流电压。
2
This article describes the control principle of soft starter of alternatecurrent electric motor, and the excellence and characteristic than normal starter.
本文阐述了交流电动机软起动控制器的控制原理，与常规的交流电动机起动控制器相比所具有的优点和特点。
3
The higher the frequency of alternatecurrent, the higher oscillation frequency of the interface between slag pool and metal pool is, and the less amplitude is.