When performing energized electric motor testing, monitoring voltage is the most important parameter. If voltage is unbalanced it should be corrected as soon as practicable. A current unbalance will be a consistent symptom of unbalanced voltage. What if you have balanced voltage and unbalanced current? Depending...
Featured Tips
Featured Tips are exclusive articles for our Knowledge Briefs subscribers. They are updated and rotated weekly, written by Snell instructors and consultants for those interested or involved with infrared thermography and electric motor testing (EMT).
Electric Motor Testing (EMT)
| Apr 15, 2024
Monitoring energized electric motors is becoming a common practice as part of reliability programs. Power quality and motor performance can be assessed in a matter of a few seconds of data acquisition. The most important parameter for assessing power quality and motor operation is by far...
Infrared - Condition Monitoring
| Apr 24, 2024
Of the most common types of inspections conducted by thermographers, electrical inspections are the most prevalent type and also the most inherently dangerous. With quality training, and through taking the proper procedures and precautions, the danger level can be reduced. If the thermographers are going to...
| Apr 01, 2024
With the advent of inexpensive storage in the past few years, many cameras use external memory cards to record images, video, and in some cases, text or voice annotation. For the most part, this is a good thing. However, there can be a downside. Because memory...
Infrared - Condition Monitoring (Español)
| Apr 22, 2024
La mayoría de personas podría pensar que inspeccionar trampas de vapor es algo tan sencillo como decir que únicamente debería estar más caliente en el lado del vapor y más frío en el lado del condensado, pero debido a que podrían existir diferentes métodos en los...
Infrared - Buildings
| Apr 05, 2024
At first blush, inspecting buildings with thermography might appear to be a rather straightforward endeavor. While this is partially true, there are some points to consider. Heat transfer in buildings can be dynamic and understanding the thermal conditions and how they change during the inspection process...
| Mar 08, 2024
Using IR to verify construction details of commercial facilities is another use of the technology. With the right conditions, thermography can be successfully used to verify placement of reinforcement grout in concrete masonry unit (CMU) walls. Editors Note: While thermography can detect the presence of grout...