Select a crane based on the total weight of the blade and hub. It must be equipped with a main crane and an auxiliary crane, and if possible two auxiliary cranes. The main crane lifts the hub, and the two auxiliary cranes lift the two blades (the upper two blades of the Y-shaped blade) respectively. The lowering speed of the main crane is lower than the lowering speed of the auxiliary crane. the blades and the hub are on a horizontal line. At this time, the main crane and the auxiliary crane descend at the same speed until the blades are placed on the ground. The floor must be padded with foam bricks with a thickness of more than 1M. Avoid damaging the blades. When installing, install the blades on the ground hub and adjust the angle as above.
40 meters to 90 meters. According to the CCTV website, the length of wind blades ranges from 40 meters to 90 meters. Wind turbines convertnt wind energy into mechanical work. Mechanical work causes the rotor to rotate and produce alternating current. It includes wind turbines and generators. devices), steering (tail), tower, speed limit safety mechanism and energy storage device and other components.