Harmonics

Understanding why current and voltage deviate from a pure sinewave, how it affects electrical systems, and best practices for dealing with the non-linear loads that cause them

Highlights

MTE Corp.
Matrix Air Ec Motor Filter

Matrix Air EC Motor Filter

July 11, 2022
Mitigates harmonics issues produced by electronically commutated motors.
Photo courtesy of AZZO
Portable power quality monitoring

The Top 5 Myths About Portable Metering

Feb. 7, 2022
Dispelling common misconceptions regarding the selection and application of portable metering
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Dreamstime M 3950729

Electrical Troubleshooting Quiz — Aug. 3, 2021

Aug. 3, 2021
How to address a scary power quality report
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Ups For March 2021 Monthly Quiz

ECM’s Monthly Quiz: Power Quality Puzzles

March 2, 2021
Take this quiz to see how much you know about power quality, and enter for a chance to win a $25 gift card to Amazon, Cabela's, or iTunes!
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.
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Mro Quiz 8 18 20
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Frustrated Engineer
anyaberkut/iStock/Getty Images Plus
Mro Electrical Quiz 08 04 20

Electrical Troubleshooting Quiz — Aug. 4, 2020

Aug. 4, 2020
How to solve for harmful harmonics
Fused Exo Pic 02

The Case of the Chiller Fuse Failures

July 14, 2020
How one university solved the mystery of fuse failures on a large chiller
gustavofrazao/iStock/Getty Images Plus
Quiz On Wooden Blocks

Electrical Troubleshooting Quiz — July 7, 2020

July 7, 2020
What to do when a custom-built production machine with recycled parts keeps breaking down
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Solar Panel Catalin205 Dreamstime 57353966

Delinquent ASD Causes Havoc on PV System

May 26, 2020
Unusual fault code leads to the true culprit of a power quality dilemma