Frequency 50/60Hz Low Start Torque Motor with Y Winding Method Product Overview GREEF NEW ENERGY GDG Series Disc Type Permanent Magnet Generator features a unique coreless design where the spindle and rotor are arranged in a disc shape. The stator is fixed at the center while rotors spin on both sides, with the spindle containing only windings and no iron core. Both stator and rotor adopt a flat disc structure using axial air gap magnetic flux, alternately positioned along
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“I built a small pico hydro system on the creek behind my off-grid cabin. The water head is only 3 meters and flow rate around 0.2 m³/s – too low for most generators. This axial flux coreless unit starts generating usable power at just 150 RPM. No cogging, no iron loss, and it’s silent. I’m getting 300-400W continuously, 24/7. My old induction generator would barely light an LED at that speed. Absolutely perfect for low-head hydro.”
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