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AH-20kw Technical parametersWind rotor diameter (m)10Blade material and quantityFiber glass reinforced * 3Rated power / max power (w)20k/23kRated wind speed (m/s)11Rated rotate speed (rpm)180Working wind speed (m/s)4-30Startup wind speed (m/s)3Survived wind speed (m/s)50Working voltage (v)DC540v AC400VBattery voltage / capcity (v, ah)2*250=500 / 200Speed regulation methodYawing and hydraulic brakeStop methodManual brakeGenerator styleThree phase, permanent magnetWind turbine weight (kg)980AAATower height / weight (m/kg)15/2800 SAFETY MEASURE OF AH-20KW:The design safety factor of Blade and hub structure strength is big than 8; survival wind speed: 50m/s; Allow over rated rotate speed for 2-3 times. Permanent magnet generator, Allow over rated rotate speed for 2-3 times. The max output power can reach to 1.3-1.5 times of rated power. Adopt the electromagnetic design to limit the max current and make sure the generator coil can not overload.Generator withstanding voltage is more than 250