... With manual bypass 4. UPS, ECO, EPS Mode Three Phase Double Conversion Online Uninterruptible Power Supply Manufacturer 1.Brief ... <30% 12pulses rectifier plus filter <5%Charge modeConstant current first then constant voltage, charge with temperature compensation, ... UPS.Production Range: UPS, three phase (10kva~800kva), single phase(300va~20kva), three phase in and single phase out(6kva~80kva), online ...