1、 Grid voltage fluctuations

Grid voltage fluctuations are one of the common causes of wind turbine voltage rise. When the voltage is too high, it may cause damage to the fan equipment. The rated voltage of the fan motor is generally 380V. When the voltage rises to 420V or above, overvoltage will occur. In the case of large voltage fluctuations in the power grid, it is easy to cause frequent overcurrent of the fan and may also lead to motor burnout.
Solution: Voltage stabilizers, pressure reducers, and other devices can be installed to stabilize the voltage. Add some telescopes or place a monitoring device next to the wind turbine equipment to record the changes in grid voltage and make timely adjustments.

2、 Motor itself issues

The problem with the fan motor itself can also lead to an increase in voltage. For example, overheating of the motor rotor copper rod, poor environmental protection, and wear of the bearings of the Manchester motor can all cause an increase in motor temperature, leading to an increase in voltage.
Solution: Methods such as replacing or repairing the motor can be adopted. Regularly check the insulation condition of the motor to ensure its normal operation. In addition, pay attention to the load situation of the motor and do not overload it.

3、 Equipment malfunction

Sometimes, a malfunction of the fan itself may also lead to an increase in voltage. For example, issues such as loose rubber in the fan drive, overheating of bearings, and imbalanced impellers can all lead to an increase in voltage.
Solution: Regularly check the operation of the equipment and promptly handle any faults found. For example, if the rubber of the fan transmission is loose, the rubber can be reinforced again to ensure the stable operation of the fan.

Summary: There may be many reasons for the increase in wind turbine voltage, including grid voltage fluctuations, motor problems, equipment failures, etc. In practical work, it is necessary to regularly check the operation of the equipment, promptly handle problems, and ensure the normal operation of the fan.