report KD 730 has been added to the menu KD-reports. The title of this report is: “Ideas about a 28-pole, 3-phase permanent magnet generator using the housing and winding of a 4-pole asynchronous motor frame size 80”.

This generator makes use of 28 neodymium magnets size 40 * 7 * 3 mm and the magnet costs are only about € 25. It is expected that the standard 230 / 400 V winding can be used for 24 V battery charging if the winding is rectified in delta.

At 27-12-2021 a new chapter 5 has been added to report KD 730. The title of this chapter is: “Alternative 4-pole winding with coils piled up like roof tiles”.