Detailed Product Description small wind turbine 1.CE proved+7 patents 2.high efficiency+small size 3.NO MOQ+wholesale price 4.professional factory small wind turbine Hummer 3000w wind turbine : A. Strengthened fiber-glass design of rotor blades B. starting up at low wind speed with the patented technologies C.with indigenous intellectual property rights of high output efficiency wind generator D. Tail furling and over wind-speed guarding automatically E. Off grid for housing using ,3000w wind turbine can drive refrigerator ,TV ,pump ,washing machine and other electrical appliances . F.Grid-tied models , connected to the local grid let you saving money on the electric bill . Main technical data of 3000w wind turbine: Rated power(W) 3000 Maximum output power(W) 4500 Charging voltage (V) DC 180 Blade quantity 3 Rotor blade material GRP Rotor blade diameter(m) 4.6 Start-up wind speed (m/s) 2.5 Rated wind speed (m/s) 10.0 Rated rotating rate (r/min) 400 Wind energy utilizing ratio (Cp) 0.4 Generator output Single-phase frequency conversion AC Rated charging current (A) 16 The maximum charging current (in a short time )(A) 28 Output AC frequency (Hz) 0~360 Generator efficiency >0.8 Wireless tower diameter(mm) 397 13712000 (2pcs) Guy tower diameter(mm) 14030004 (4pcs) Tower height(m) 12 The weight of generator(kgs) 60 Battery 12V 150Ah/200Ah 15pcs