Report KD 792 about the VIRYA-4S is replaced by report KD 793 about the VIRYA-3.2. The title of KD 793 is: “Calculations executed for the 3-bladed rotor of the VIRYA-3.2 windmill (lambda design = 4.5, stainless steel blades) driving the PM-generator of Magnetic Innovations type 260-25 HS for 48 V battery charging”. The reason is that I could borrow a generator with the frame size which is used for the VIRYA-3.2 and that I have performed some measurements at this generator. The measurements are given in chapter 9 of KD 793.
At 11-3-2026, report KD 793 was completely reviewed. The rated wind speed was increased from 9 m/s up to 10 m/s. The Q-n curves for short-circuit and for 52 V star are now derived from the measurents for short-circuit as given in chapter 9.