... saving, high torque output at low frequency. Frequency inverter(frequency converter,ac inverter)1.ApplicationThis type is economic,high-efficiency,stable,adopting ... :DC bus voltage drop 400VdcMomentary power loss0~2 seconds:The inverter can be restarted by speed search.Heat sink over heatProtected ... ,output voltage,DC bus voltage and rotation direction. 75KW ac inverter