Use of rare earth permanent magnet materials, professional magnetic circuit design,easy to low-wind start, automatically adjust the facing wind direction,use of closed power transmission slip ring,cables are not enwind, constant voltage charging,with over charge, over discharge, AC unloading and short-circuit protection, careful anti-corrosion treatment, stable operation, without special maintenance, long service life.
20KW wind turbine technical parameters
Type of generator
Permanent-magnet -3phase A.C.
FRP (Fiber glass reinforced*3)
rated rotor speed
start up wind speed
security wind speed
Hydraulic brakes, PLC control
Measurement of wind turbine angle agaist wind
Testing real-time wind speed and then transfer the signal to controller
height of Free sdand tower
18m(hot galvanized and plastic spraying)
top quality except tower
output controller system
Controller , Inverter
Suggested batteries and it’s capacity
12V 200AH 30psc
can supply power for
Small Village, air-condition, refrigerator, washing machine , water pump ,electric pan, color TV, lighter, fanner, charger
1. Startup control: the generator startup from waiting conditions when controller system gives the order. And when the wind velocity examining system measured that the average wind velocity exceeds 3m/s, and the self-inspection of system is far from trouble
2. Yaw and untie the cable: the yaw system is to follow the wind according to the wind direction. This system is able to untie cable automatically since the continual tracking wind may cause cable winding. So the system has
3. Protection and controlling: It can control the generator automatically for the actions of yawing, unloading, braking, untying according to the default set by PLC controller and testing out the parameter of real- time by wind velocity, wind direction, temperature of the generator, rotated speed, current, voltage and yaw angle. Besides, the controller can test automatically test the error of wind speed sensor, wind direction sensor and yaw angle sensor. It can also protect and control the generator when it is in trouble.
4. Parameter of real-time monitoring: in the process of operating, it can detect the operating condition three-phase voltage, current, wind velocity, wind direction, rotated speed, temperature and cable twisting. It will judge by itself and take the appropriate protection measures when abnormal situation happens.
Qingdao Richuan Precision Machinery Co., Ltd. was established in 2003, located in Jiaonan, Qingdao, Shandong Province.
We are specialized in manufacturing aerogenerators, solar panels, mold metals, trolleys, rubber tires, plastics products and woodwork. Our competitive prices, excellent quality, prompt delivery and excellent after-sales services make our company become the main supplier to factories in this area. We have won a good reputation among clients.