Operation and start-up of axial flow fan

The operation of an axial flow fan relies on the drive of an electric motor. In fact, any device is the same, and in order to operate, it must have a similar "engine". When choosing the electric motor for an axial flow fan, it is always hoped that the motor can quickly drive the impeller to reach the rated speed and work normally. The starting of an electric motor includes the entire process of power on starting and acceleration. Its starting methods are divided into full pressure starting and reduced pressure starting.
Reasonable selection of the starting method for an electric motor must be based on factors such as the capacity of the power grid, the requirements for starting torque from mechanical loads, and the characteristics of the motor itself, in order to obtain the specified starting time. For example, the capacity of the power grid is large, and the starting current of the electric motor will not cause a significant voltage drop on the grid. In addition, the control circuit and equipment of the power grid allow for a short period of time to pass a sufficiently large starting current, and full voltage starting can be used; If the required torque for starting the fan is not large and the grid capacity is relatively small compared to the motor, the main consideration is how to reduce the starting current and adopt reduced pressure starting.