Electrical fault diagnosis and repair

Electric Motor operation or failure, can see, smell, touch four ways to prevent and troubleshoot problems in a timely manner to ensure the safe operation of the motor.

First, look
Whether the observed abnormalities in the motor is running, its mainly for the following situations.Stator winding short circuit, the motor may see smoke.Severe motor overload or phase operation, the speed will be slow and there is more heavy "buzzing" sound.Motor running, but suddenly stopped, you will see at the wiring loose sparkle; blown fuse or a part is stuck and so on.If the intense vibration of the motor, it may be stuck or the motor gear fixed bad, foot bolts loosening.If the Brushless motors contacts and connections within the discoloration, burn marks and signs such as smoke, then there may be overheating, bad connections or conductor windings burned.

Second, the touch
Touch some parts of the motor temperature can also determine the cause of the malfunction. To ensure safety, when the application of touch to touch the back of the motor housing, bearing around the part, if found that the temperature anomalies, there may be several reasons.Ventilation. If the fan off, the ventilation channel blockage.Overload. Resulting in excessive current leaving the stator winding overheating.Stator winding inter-turn short-circuit or three-phase current imbalance.Frequently start or braking. If the ambient temperature is too high bearing, the bearing may be due to damage or lack of oil.

Third, smell
By smell the smell of the Vibrator Motors can determine and prevent failure. If there is a special paint fumes, indicating the motor internal temperature is too high; If there is a very strong odor paste taste or coke, it may be winding insulation breakdown or has been burned.