sine wave filter
1,change SPWM modulated wave to sinusoidal wave form
2,decrease theeddy-current loss and the noise of motor

sine wave filter

The sinusoidal filter consists of hf- reactor,rc circuit and common node reactor,theSPWM modulated waveoutput by the inverter can be changed to sinusoidal voltage waveform.The deformation coefficientshall be 5% by the action of sinusoidal filterwhen he motor frequency is 50Hz( the deformation coefficient also depends on the brand of inverter)

1. change SPWM modulated wave to sinusoidal waveform

2.decrwase theeddy-currtent loss and the noise of motor

3.decrease the pulse current in the output cable and the motor and lengthen the service life of motor

4.longer cable can be used to connect inverter and motor

5.cecrease the radiation,unshielded cable can be used to make wire setting easier.