High power factor at ac input can be achieved by controlling the switch of capacitor charge circuit.
通过对电容器充电回路开关管进行控制，实现交流输入端的高功率因数。
It can provide all kinds of ac, dc power, and is convenient for the test to check switch equipment is normal or not, improve work efficiency.
它能提供各种交、直流电源，便于对开关柜的检测，以检查设备正常与否，提高工作效率。
During the so-called braking of the motor, the power flows from the ac side to the dc side of the switch-mode converter and it operates in a rectifier mode.
在所谓制动阶段，功率从开关型变流器的交流侧流向直流侧；此时变流器相当于一个整流器。
Main circuit adopts the AC-DC-AC structure and uses IPM(Intelligent Power Module) as main switch.
主电路采用交—直—交电压源型变频器，功率器件采用智能功率模块IPM。
Voltage detect of three phase AC, the warning of over-voltage, under-voltage, lost phase and power failure, two-way AC circuits switch full-automatically.
三相交流电压检测，过压、欠压、缺相、停电告警，全自动双路交流前换功能；
Voltage detect of three phase AC, the warning of over-voltage, under-voltage, lost phase and power failure, two-way AC circuits switch full-automatically.
三相交流电压检测，过压、欠压、缺相、停电告警，全自动双路交流前换功能；
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