Friday, February 10, 2017

Significant Particulars That You Should Know About Electric Motor Rewinding

By Mandy Cross


Most of the industries have experienced the wrath of motor failure. This becomes a major challenge whenever it starts deteriorating or ultimately fails. Engineers are forced to find a quick solution to the challenge and what comes first is either to repair or replace it considering the damage. For a quick fix, the engineers may try to restore the motors by rewinding them although people have a notion that electric motor rewinding decreases its efficiency.

The materials used in the process can affect the effectiveness of the motors. For example, if you strip a coil from a stator core at high temperatures before winding back, electrical features found on the base may change. This will lead to losses of iron, and it may lower efficiency. As far as an engineer can reverse the electric motor according to its specifications, it is possible to arrive at the initial performance levels.

Most of the motors that have gone through rewinding have failed because sometimes they are attended by unqualified engineers. It is important that whenever you take a motor for such services you should ensure that the professional have a vast experience in reversing the motors.

Insulating tapes and use of resins that are of high standards should be applied when rewinding the motors to avoid causing any effect of thermal dissipation. An engineer should use some of the mechanical designs during the coil formation. It is evident in many nations, that motor rewinding can help in improving reliability and can increase the uptime of electric motors.

In most of the technical procedures, a customer should understand that the end result may vary. Before an engineer can start on rewinding the motors, the customer needs to understand that even after rewinding there may be chances where the motors can fail, especially if it had a serious problem. In such circumstances, you may not have a good outcome in spite of paying for the services.

Most companies that use high voltage electric motors may not have to close up their plants for a long time while waiting for new motors. It can also take a time to find replacements, especially for those machines that have been there for a long time and finding them in the market, might be difficult. Considering the loss that the company may incur over that duration, it is advisable to rewind the motors as you wait to get a new one for replacement.

Some situations arise whereby you try looking up for a replacement, but you cannot find it at the dealers. In this case, the engineer can modify the motors by use of the available materials. In some motors, the slots in the stator are not filled with wires. If such a situation arises, the engineer can increase the size of the wire and ensure that there is an increment on turns in the motor.

Moreover, when your motor is about to undergo rewinding, you make sure that the engineer knows of your expectations. You may come up with an agreement on how the rewinding will be done. You can agree on inspecting the core of the stator before the engineer can strip the windings. Old bearings can be replaced with new ones as a measure to increase efficiency.




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