May 4, 2021
One of the extra steps we can perform at HECO when performing repairs, maintenance, or rebuilds on your electric motors is magnetic degaussing. While some may feel this step is unnecessary, experience has taught us that it can help prolong the life of your bearings and your motor! Why Magnetic Degaussing of Motor Components is …
April 29, 2021
You’re trying to select a vendor to perform some repairs (and possibly a rebuild) on one of the critical yet problematic motors in your facility. You’ve received some good bids and are reviewing the vendors under consideration when you notice that one says they have a good relationship with the vendor of the motor you …
January 13, 2021
When it comes to inspecting electric motors, it’s not just the electrical components that are important. The mechanical aspects of a motor are extremely important to its performance, which is why mechanical inspection of electric motors is so important. Critical Fits for Electric Motors Electric motor inspection, when done correctly, always includes a mechanical inspection. …
December 16, 2020
Two-pole motors can be more challenging to repair because of the vibration issues that can be related to the units operating at higher speeds, which means there are special tests that need to be performed on them. Without checking characteristics such as runout and roundness, there is a chance that vibration won’t show up until …
July 16, 2020
In part 1 of How to Test an Electric Motor, we talked about the importance of testing and different types of tests that you can perform. In part 2, we are going to talk about more of these tests and how you can put test data to good use. Shaft Current Test When you suspect …
July 7, 2020
There are so many different tests that you can perform on an electric motor — and that’s why it’s key that you know what the purpose is of these tests, how they work, and what the data means. This blog post is the first in a two-part series on the subject of electric motor testing. …
May 28, 2020
If you have a specific NEMA-T frame motor, you can be assured that, regardless of the manufacturer, that specific T frame (for example, a 324T) will have the same shaft length, shaft diameter, and bolt hole mounting dimensions. However, what many people don’t realize is that the physical size of specific T frame motors can …
May 19, 2020
The air gap refers to an actual physical gap in an electric motor that separates the moving rotor and the stator core. This gap is a necessary part of motor design and the size of the air gap is one of the keys to motor performance and reliabilit. The Case for a Correct Air Gap …
April 18, 2020
Bearings account for about 51% of all electric motor failures and the most common sources of failure involve normal wear and tear, lubrication issues, contamination, or electrical damage that affects the bearing surfaces. While rolling element bearings are the most common type of bearing, sleeve bearings are found most often in larger motors that require a …
March 14, 2020
There have been many advances in technology that allow us to gather, analyze, and visualize data. Remote condition monitoring and data communication has evolved over the years to allow massive amounts of information about machinery performance to be transmitted wirelessly and automatically . New developments in artificial intelligence and machine learning have made it possible …
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