1.5 MW wind turbine impellers range from 65m to 88m, including
IEC Class I: 65m, 70m
IEC Class II: 77m, 82m
IEC Category III: 82m, 86m, 88m
2 MW and above are more, including 2.5 MW 80m, 90m, 100m, 117m
< p>3 MW 90m, 110m, etc.4.5 MW 125m, etc.
6 MW 130m, etc.
The corresponding wind speed for wind power level 6-7 is 10.8 m/s-17.1m/s. Generally, the full wind speed (rated wind speed) of a 1.5MW wind turbine is around 12.5m/s, that is, the wind speed ≥12.5m/s can reach full power, which corresponds to 1,500 kWh of electricity per hour. When the wind speed is less than the rated wind speed, the power will decrease. For example, the power of Goldwind GW70 wind turbine is 1300KW at 11m/s, which is 1300 kilowatt-hours of electricity per hour.