How to debug the outer rotor axial flow fan? Instructions for debugging steps of axial flow fan

The use effect of the outer rotor axial flow fan is different in different states. Therefore, the working conditions of different components are different, and the use effect of the fan will also be affected. To debug the outer rotor axial flow fan to a good state, you can start from many aspects. The axial flow fan works in different ways under different conditions. Therefore, the work of the fan can also be changed under different conditions, and the outer rotor axial flow fan is adjusted, you can also start with the remainder.

1. The external rotor axial flow fan is allowed to start at full pressure or reduced pressure, but it should be noted that the rated current at full pressure is about 5-7 times. The reduced pressure starting torque is proportional to the square of the voltage. When the power grid capacity is insufficient, the reduced pressure starting should be adopted. The axial flow fan is started by the action of permission power or reduced pressure. However, during inspection, the full current is about 5-7 times, and the reduced pressure torque is proportional to the voltage, the depressurization action shall be adopted.

2. When the two-speed axial flow fan is running for trial operation, start the low speed first to check whether the steering is correct; when the fan is started at high speed, the fan is still and then started to prevent the switch from tripping and motor damage caused by high-speed reversal. When driving the double-far axial flow fan, start at low speed first to check whether the rotation direction is correct; when the wind and static electricity move from a distance, the compound machine to prevent remote reversal, which will cause the open and close tripping and motor damage.

3. During the trial operation of the axial flow fan, carefully read the product manual and check whether the wiring method is consistent with the wiring diagram; Carefully check whether the working voltage of the fan power supply meets the requirements, whether the power supply is phase-deficient or phase-deficient, and whether the capacity of the power distribution components meets the requirements. When driving the axial flow fan, the wiring method should be specified and checked to be consistent with the wiring diagram. Fan voltage should be saved, power supply is lack of phase or parity, and the number of power distribution components.

4. During the test run, there should be at least two people, one to control the power supply and the other to observe the operation of the fan. If any abnormal phenomenon is found, the fan should be stopped immediately for inspection. First check whether the rotation direction is correct; After the axial flow fan starts to run, immediately check whether the running current of each phase is balanced and whether the current exceeds the rated current. If there is any abnormality, stop the inspection, the driving time of two people will not be reduced. One person will supply power and the other person will check the fan operation. If there is any abnormality, stop and check. First, check the direction of rotation; After the axial flow fan is started, immediately check whether the current of each phase is flat and whether the current exceeds the current. If it is not common, stop the shuttle inspection, run for five depths, stop the shuttle inspection to check whether the fan is different, and the start operation is really unchanged.

5. When the external rotor axial fan reaches the normal speed, the input current of the fan should be measured to see if it is normal. The operating current of the axial fan should not exceed its rated current. If the operating current exceeds its rated current, check whether the power supply voltage is normal. When the axial fan rotates horizontally, the input current of the fan should be measured. The axial fan should not exceed its rated current. If the current exceeds its rated current, the voltage should be stored.