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Forum Index : Windmills : report KD 797 about the VIRYA-4.1S available

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Adriaan Kragten
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Joined: 14/10/2015
Location: Netherlands
Posts: 29

Posted: 09:50am 25 Apr 2026

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Report KD 797 can be copied for free from my website: www.kdwindturbines.nl at the menu KD-reports. The title of this report is: "Calculations executed for the 3-bladed rotor of the VIRYA-4.1S windmill (lambda design = 4.5, stainless steel blades) driving the PM-generator of Magnetic Innovations type 260-75 LS for water pumping or grid connection or the type 260-75 HS for 48 V battery charging".

Adriaan Kragten
Newbie

Joined: 14/10/2015
Location: Netherlands
Posts: 29

Posted: 07:43am 07 Jun 2026

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Report KD 797 about the VIRYA-4.1S is replaced by report KD 801 about the VIRYA-4.5. The title of KD 801 is: “Calculations executed for the 3-bladed rotor of the VIRYA-4.5 windmill (lambda design = 5, galvanised steel blades) driving the PM-generator of Magnetic Innovations type 260-75-LS for water pumping or grid connection or the type 260-75-HS for 48 V battery charging”. It appears that the chosen generator is large enough for a larger rotor which supplies more power.
Edited 2026-06-07 17:45 by Adriaan Kragten

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