... no hysteresis and cogging, low starting torque Wind generator motorXD-PSF400-type vertical axis wind turbine Properties:1. No ... high-precision coil winding;4. With rare earth permanent magnet, Multi-polar, small gap, high power ... volume power ratio;7. Because no iron loss, low heat, temperature rise is small.Packaging & DeliveryPackaging ... phasewe can according purchaser's demand wind power alternator