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What is the Reason for Abnormal Sound in Motor Operation?

 

What is the Reason for Abnormal Sound in Motor Operation?

Motor abnormal sound, not only mechanical reasons, and electrical reasons. The former problem is easier to find, but will not disappear with the disconnect of the power supply; The latter is often accompanied by abnormal fever and violent vibration, generally disconnected after the power will disappear.

1.Mechanical reasons

1)Fan blade touch end cover.

2)Bearing serious wear or ball damage.

3) Bearing inner ring and shaft contact is not firm.

4) Sweep the chamber.

2.Electrical reasons

1)Winding grounding or phase short circuit.

2)Winding inter-turn short circuit.

3)The polarity of the winding or part of the coil is wrong;

4)Lack of phase operation.

What is the Reason for Abnormal Sound in Motor Operation?


Motor abnormal sound, not only mechanical reasons, and electrical reasons. The former problem is easier to find, but will not disappear with the disconnect of the power supply; The latter is often accompanied by abnormal fever and violent vibration, generally disconnected after the power will disappear.


1.Mechanical reasons


1)Fan blade touch end cover.


2)Bearing serious wear or ball damage.


3) Bearing inner ring and shaft contact is not firm.


4) Sweep the chamber.


2.Electrical reasons


1)Winding grounding or phase short circuit.


2)Winding inter-turn short circuit.


3)The polarity of the winding or part of the coil is wrong;


4)Lack of phase operation.