motors
Articles
AC Vs. DC Motors
For those who have experience working with motors, you are likely quite familiar with the difference between AC and DC motors. If you are new to electrical motors or would like a refresher, we will explain..
- Mark Koch
- ALL-TEST Pro, LLC
Webinars
Using Motor Current Signature To Detect The Number Of Cracked Rotor Bars In Induction Motors
This presentation will not only focus on collecting current signature , but also will cover the analysis part of spectral data to determine the number of cracked/broken bars along with the severity level and needed corresponding corrective actions . This will be clearly shown through two real case studies in my plant for two 1.2 MW induction motors.
- Mohamed Wahba
- EzzSteel
Two Minute Tips
Troubleshooting a Running Motor
This tip discusses troubleshooting the motor and machine train with the motor still running. The fault zones specific to the physical motor are the stator, rotor and airgap....
- Noah Bethel
- PdMA Corporation
Two Minute Tips
Delaying End of Life
Everything, including motors, has an end of life. Our reliability goal is to identify conditions conducive to failure and correct them so the end of life doesn’t come early...
- Noah Bethel
- PdMA Corporation
Five Minute Facts
PI Testing “The Fire Hose Analogy”
A Polarization Index is affected by multiple current components that occur simultaneously. This instructional presentation provides a simple analogy to make this complex test easier to understand...
- Don Donofrio
- The Snell Group
White Papers
Technology Based Crane Monitoring and Diagnostics
Overhead cranes are often a single source cause of downtime in any manufacturing facility, especially when discussing those performing services in a steel mill’s melt shop. Often, these assets do not have redundancy that would allow for one to be taken....
- Stephen Bailey
- IVC Technologies
Five Minute Facts
Calculating Eccentricity Frequencies
Eccentricity Frequencies, as related to electric motors, simply means that the rotor is not radially or axially centered in the stator magnetic field. This instructional video demonstrates how to calculate these frequencies..
- Don Donofrio
- The Snell Group
White Papers
The Trifecta of Motor Maintenance
Using the same concept of a trifecta (three factors for success), this article provides companies with the winning strategies of motor maintenance, focusing on the three reliability tasks for electric motor testing and the order in which they should be applied.
- Noah Bethel
- PdMA Corporation
Five Minute Facts
Ultrasound: Is the Sound Good or Bad?
How many of you have walked through your plants and heard a strange noise coming from somewhere? You may have noted that it didn’t sound good. When you hear those noises…
- Christopher Hallum
- UE Systems Europe B.V.
