There are several important factors that affect the quality of your motor rewind. North End Electric tells you what you should think about before you visit a motor rewinding shop.
The location of the motor rewind.
The process of rewinding an electric motor is a delicate task and it can be challenging to clean the dirt, debris, and grime that has built up over time as they can negatively impact the rewinding process. Fluctuations in temperature can lead to condensation, which can also harm the quality of the rewinding process. For these reasons, it is essential that the motor rewinding shop has a clean area dedicated to rewinding, like ours at North End Electric.
How the motor winding is insulated.
One method is to submerge the motor in a tank filled with varnish and cure it in an oven. Another method is called trickle varnishing, in which the winding is attached to a rotating table and spun, which heats the winding and a stream of varnish. The varnish is trickled onto the winding head and travels down the length of the winding, covering it.
Another effective method is using a vacuum pressure impregnation tank. This method submerges the windings in a tank filled with insulating resin. The tank is pressurized to ensure that the resin goes through all of the windings, providing complete insulation.
How the stator core is cleaned.
The process of cleaning the stator core can be demanding and require a lot of effort if the right equipment is not used. Traditional methods such as using chemical cleaners and manual scrubbing can be effective, but they can also be time-consuming and potentially harm the windings. But there are more efficient and safe methods for cleaning the stator core.
Stator Burner Oven – These ovens are designed specifically for this task and are able to burn away dirt, oil, old insulation, and other contaminants at high temperatures without destroying the stator core.
Ultrasonic Cleaner – This device uses high-frequency sound waves to create microscopic bubbles that implode and create a powerful cleaning action that can remove even the most stubborn deposits. This method is efficient and can reach tight spaces and hard-to-reach places that would be difficult to clean by hand.
Winding testing is important.
It is crucial to conduct tests, such as surge and hipot testing, and core tests after the electric motor rewinding shop visit are completed, to ensure that the motor is functioning properly. These tests help to confirm that the electric motor is operating within the specified parameters and that the rewinding process has been successful.
North End Electric Has Trusted Motor Rewinding Services
If you are interested in a motor rewinding shop or want to inquire about how much it costs to rewind an electric motor, we have what you’re looking for. Call our team at North End Electric and have your questions answered today!