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+---- Thread: Troubleshooting Induction Motors (/showthread.php?tid=11946)
Troubleshooting Induction Motors - saurabhbenndre - 08-16-2017
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Abstract:
The keys to successful motor operation include a total understanding of the application, then choosing the proper type of motor for the application. This must then be followed by the proper installation mounting, coupling, and a total understanding of the motor surroundings or environment. Of course, for continued success proper maintenance of the motor must also be performed. Many problems could be avoided if the application and environment were understood, while others may be caused by a changing environment in which the motor operates. In addition, some are due to choosing the wrong motor for the application or defects within the motor itself. This paper examines the most common mechanically or electrically originated motor problems and their preventative action.
INTRODUCTION
TROUBLE with a motor, like trouble with any rotating machinery, ranges depending on the situation from aggravation to crisis. Certain problems seem to reoccur more frequently than others. Some problems could be avoided if the application and environment were understood, while others may be caused by a changing environment in which the motor operates, and, of course, some are due to the motor itself. These problems include the following.
??Improper Voltage.
??Motor has inadequate torque to drive the load.
??Motor takes too long to start.
??Overload or instantaneous trip.
??Overload relays take the motor off during full load operation.
??Unsatisfactory vibration.
??Bearing problems.