TL-20KW's parameters rotor diameter£¨m£© 10 speed adjustment way electromagnetism plus drift blade material intensive fiberglass stop way electromagnetism plus manual operation blade quantity 3 generator type permanent magnetism of three-phase current rated speed(m/s) 12 rated power 20KW start up wind speed(m/s) 4 max power 30KW work speed(m/s) 4-35 rated rotor speed(r/min£© 200 security wind speed(m/s) 45 work voltage DC360V-500V start up force moment(n/m) 17 weight of main body£¨kg) 1400.