What is the reason for the large fluctuation of current in centrifugal blower

Centrifugal blowers are widely used in industrial production, but sometimes there may be significant fluctuations in current during operation. This current fluctuation not only affects the normal operation of the equipment, but may also cause damage to the equipment. The following are the main reasons for the large fluctuations in current of centrifugal blowers:

1、 Unstable power supply voltage

The instability of power supply voltage is one of the common causes of current fluctuations in centrifugal blowers. If the power supply voltage is too high or too low, it will cause changes in the motor current of the blower, resulting in current fluctuations.

2、 Load variation

During the operation of a centrifugal blower, if the load changes, such as a sudden increase or decrease in wind demand, the current of the motor will also change accordingly. This sudden change in load will cause significant fluctuations in current.

3、 Motor malfunction

The malfunction of the motor itself may also cause current fluctuations. For example, problems such as short circuits in motor windings, bearing wear, or rotor imbalance can all cause current instability.

4、 Internal malfunction of the fan

Internal faults of the fan, such as impeller wear, bearing damage, or poor sealing, may also cause current fluctuations. These faults will affect the smooth operation of the fan, causing changes in current.

5、 Control system issues

If there are problems with the control system of the centrifugal blower, such as controller failure or improper parameter settings, it may also cause current fluctuations. The instability of the control system will directly affect the operating status of the motor.

6、 Environmental factors

Environmental factors such as temperature, humidity changes, or vibration interference may also affect the current stability of centrifugal blowers.

conclusion

The reasons for the large fluctuations in the current of centrifugal blowers may involve multiple aspects, and it is necessary to investigate and analyze each possible factor. Timely detection and resolution of these issues are of great significance for ensuring the stable operation of equipment and extending its service life.