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Power Quality & Reliability
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Diagnosing and troubleshooting common power quality and reliability problems in electrical systems
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When Is the Power Quality Issue Not the Issue?
March 10, 2023
Risk of Lightning Strikes Intensifies for Exposed Hospitals
March 4, 2022
The Saga of an Unexpected Shutdown
Sept. 9, 2021
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Content
ECM’s Monthly Quiz: Power Quality Puzzles
March 2, 2021
PQ Events on the Utility Side of the Meter
Dec. 8, 2020
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Jakit17
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Dreamstime.com
Capacitors Causing Transient Overvoltages
Nov. 24, 2020
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Weerapong Khodsom
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Dreamstime.com
Understanding Transfer Transients
Nov. 10, 2020
Highlights
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Andrey Popov
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Dreamstime.com
One Loose Connection
Oct. 26, 2020
Significant PQ events can cause a facility’s equipment to misoperate or unexpectedly continue to operate normally.
Photo 96155131 © Pixelrobot | Dreamstime.com
Labeling a PQ Problem
Oct. 26, 2020
Clearly identify PQ events so correct mitigation strategy can be formulated and applied
Photo 150621333 © Artinun Prekmoung | Dreamstime.com
Check That UPS
Oct. 13, 2020
These systems store energy, typically in a battery, and then release that energy when needed.
Default Settings Don’t Always Work
Sept. 22, 2020
As different personnel work on a site and information is passed between them, a piece of vital information sometimes gets lost along the way.
Photo 23250644 © Redwood8 | Dreamstime.com
Should We Change the Tap?
Sept. 8, 2020
This reasonable fix can cause a lot of grief down the road.
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Join EC&M's Members-Exclusive Portal
Feb. 5, 2021
Follow the Current
Sept. 8, 2020
Photo 160299558 © PJ_JoE JoE | Dreamstime.com
How Sensitive Is That Equipment?
Aug. 25, 2020
Illustration 26809000 © Adonis1969 | Dreamstime.com
Utilizing Fault Codes for PQ Investigations
Aug. 25, 2020
ID 75629370 © Witoon Muenhong | Dreamstime.com
Poorly Protected PLCs Lead to Production Line Problems
July 28, 2020
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Electrical Troubleshooting Quiz — July 21, 2020
July 21, 2020
Steps to take when a new compressor repeatedly shuts down on overload
The Case of the Chiller Fuse Failures
July 14, 2020
How one university solved the mystery of fuse failures on a large chiller
ID 149567630 © Dmitry Kalinovsky | Dreamstime.com
Using Thermal Imaging for Troubleshooting
July 14, 2020
This tool can help companies avoid catastrophic equipment damage and unplanned outages.
© Wrightstudio | Dreamstime.com
Reliable Robot Saves the Day
June 23, 2020
This case study shows the value of PQ mitigation equipment.
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