The good news is, electric motors can be repaired without compromising efficiency! Repairing electric motors costs a lot less than replacing them, especially if the motor has special functions.
Motor malfunctions are often caused by certain “in-service” factors such as the manufacturing activity and the factory environment in which they operate. Other failures are caused by inadequate or poor quality service and repair of engines, as well as improper installation of engines. It is much easier to use the opportunity to improve the reliability of the electric motor.
Repair of electric motors is a significant factor affecting the operating costs of a production facility. These costs are associated not only with engine repairs. The volume and quality of repairs also affect operating costs in terms of both reliability and uptime.
Numerous studies have been carried out to determine the effect of rewinding on motor efficiency. These studies have identified several variables that can affect the efficiency of a motor retrofit, including core burn-out temperature, winding design, bearing type, air gap and winding resistance. As a result of these studies, the following recommendations were developed, in which it was found that the efficiency of both standard and energy efficient electric motors can be maintained during recovery and rewinding.
All repairs begin with thorough documentation, visual inspection, testing and inspection. Rewinding begins with the original windings being carefully removed using a special stripping method. This method maintains the integrity of the iron core and mechanical performance without damage.
A good equipment repair requires demonstrating to our customers, through proper testing and documentation, that motors remain efficient when rewound.
