We, Newtech, offer iDip to maintain VFD DC voltage during input voltage fluctuation, even if all three phases reduce or any one phase voltage reduces up to 50% for 2 seconds duration. iDip is usually a standby source. It gets active as and when there is voltage fluctuation.
No motor rpm loss during 50% line voltage dip or single phase missing for 2 seconds. When operated through inverter, power dip causes reduction in motor rpm.
iDip supports the inverter in maintaining DC bus voltage and motor rpm during power dip conditions. There will be no change in the speed of the running motor.