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Power-Quality Monitoring (Part 1): The Importance of Standards-Compliant PQ Measurements (Download)

June 14, 2023

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Power quality (PQ) has found renewed interest due to changing power-generation modes and consumption dynamics. Unprecedented growth in renewable sources at different voltage levels has compounded PQ-related issues.

Consumption patterns have also seen a wide transformation due to unsynchronized loads added at multiple entry points of the grid and voltage levels. Some examples include electric-vehicle (EV) chargers that can require hundreds of kilowatts, and the large number of data centers and their related equipment, such as heating, ventilation, and air conditioning. In industrial applications, arc furnaces that run by variable-frequency drives, switching transformers, etc., not only add a lot of unwanted harmonics to the grid, but are responsible for voltage dips, swells, transient brownouts, and flicker, too.


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