Harmonic source :
Driving belt, powder concentrator, large high-pressure blower, cooling machine etc.
Solution:
Installed total two sets of LiveSine’s Active Power Filter (Model: ACTSine-75-4-F).
Results:
Total current harmonic distortion rate decreased from 20% to below 5%
Harmonic inhibition rate > 95%
Power factor kept > 0.98 consistently