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In PQ News
Call of the Month for April 2025 One of our PQ-Hotline-Call-of-the-Month (PQHoCoM) funders has recently inquired about the potential impacts on an industrial facility with a replacement of synchronous generation with an Inverter-Based Resource (IBR). This PQHCoM attempts to investigate this impact by analyzing the resulting voltage fluctuations and flicker levels. Understanding these effects is crucial for utilities to anticipate the implications of future renewable resource integration on voltage quality for connected customers and ensure compliance with grid code requirements, particularly regarding flicker severity levels.
Most Popular PQ Documents (Based on Clicks)
- The Potential Effects of Harmonics Generated by Modern Lamps ...
- Drive Failures at a Recycling Plant
- Electric Fields Originating from Energized Objects
- 02/19/2010 Call About ASD/Motors
- DPQ Event Potential Increase in Stray Voltage Problems at Su ...
P1 Update
The P1 Update keeps members of Program 1 abreast of projects, supplemental projects, and other activities in the program, including a year-at-a-glance calendar.
EPRI Industrial PQ Training Videos
As a follow-up to our Industrial Power Quality training classes, we have posted these complementary training videos to help solidify the concepts for both utility members and their customers. The top three are listed here.
Visualizing PQ Drive Parameters for Improved Voltage Sag Ride-Through 
This video demonstrates the voltage sag susceptibility of AC drive systems and how to improve the drive’s robustness through parameter changes.
Understanding PLC Voltage Sag Ride-through: AC and DC Powered Systems
This video demonstrates the differences in voltage sag ride-through between an AC powered PLC system and a DC Powered PLC system.
Power Conditioning to Enhance Control System Voltage Sag Ride-Through: The Constant-Voltage Transformer
This video shows how a CVT can be utilized to harden the voltage sag response of an automated control system.