Report KD 707 has been added at the menu KD-reports. The title of this report is: “Replacement of the original radial flux PM-generator of the VIRYA-4.2 by the axial flux PM-generator of Hefei Top Grand type TGET380-10KW-1200R for 48 V battery charging”.
Drawings of the VIRYA-4.2 windmill are no longer available. The main goal of writing this report KD 707 is not to introduce a new VIRYA design but to find the procedure how the Pmech-n and Pel-n curves for a 48 V battery load can be estimated from the specification of the manufacturer. Making this knowledge available, is the reason why this report is made public.