Welcome, Guest
Logo for MyPQ
Describe the feature.
Welcome to the EPRI Power Quality Online Resource Center!

This site is provided for the benefit of funders of the EPRI Power Quality Knowledge (PQK) supplemental project. For those seeking to learn more about EPRI PQ Knowledge, please contact me, Bill Howe, Program Manager of Power Quality research for EPRI.

If you are a PQK funder and have not subscribed to this resource center, register today. For more information about subscribing to this site, please contact Bill Howe.

PQView / PQWeb Users Group

The PQView® Users Group is intended to assist power quality engineers in managing and analyzing power quality data. The user group's purpose is to support and inform the PQView user and to provide a forum for communication and sharing of ideas among its members.

Learn More About the PQView/PQWeb Users Group 

Supplemental Project Opportunities!
PQ Knowledge Development and Transfer (Formerly PS1D) 

Management of power quality issues has never been an easy task, but it has grown even more difficult with deregulation, reregulation, increasingly scarce technical and strategic tools, and a conspicuous lack of unbiased resources for information, collaboration, advice, and problem solving. Moreover, with the ever-increasing use of sensitive digital and electronic equipment in today’s economy, end-use customers are not only demanding higher quality power, but also are calling upon utilities to help resolve PQ problems within customer facilities.

This supplemental project offers a number of benefits for members, including leveraging contributions by at least a 20-to-1 ratio, access to EPRI experts and industry peers, access to high-impact resources, such as documents covering a wide range of PQ topics, and access to MyPQ.epri.com, a comprehensive electronic PQ resource providing 24/7 access to more than 500 PQ case studies, PQ technical documents, PQ standards references, indexes, conference presentations, and a wealth of other resources.

Go to the Supplements Page 

PQView® Upgrade Project Opportunity 

PQView® Upgrade project opportunity: Introduction and discussion of a new supplemental project opportunity for broadly upgrading PQView.

PQView® was initially developed over 15 years ago in collaboration with utilities. Since that time, PQView has become a leading industry tool for managing large databases of power system monitoring information and for visualizing power quality data. It is used by many utilities as the foundation for collecting information from a variety of different monitors, managing the database of disturbance and steady state data, reporting on performance, and providing alarms and notifications for problem conditions.

This research initiative focuses on development and implementation of an enhanced PQView database, modernizing PQView’s architecture, and improving PQView’s Graphical User Interface (GUI). Work undertaken in each phase will be scaled – with input and guidance from project funders – to reflect overall funding. Phase 1 of this effort will create PQView Explorer v1 and PQWeb Explorer v1 – usable software that will comprise and deploy enhanced PQView capabilities as they are created.

Go to the Supplements Page 

Call of the Month for October 2015
Via EPRI’s PQ Knowledge (PQK) Power Quality Hotline, a PQK member inquired about how best to explain why electromagnetic (EM) emissions from power lines are different than those from radio communication antennas. In the August 2015 PQ Hotline Call of the Month, we provided a simplified explanation to this question. Some issues that were not discussed in that PQ Hotline Call of the Month are discussed here, such as the spatial characteristics of EM fields from their respective sources. This first part of a two-part Hotline Call of the Month further provides a primer for the different physical properties of fields from power lines and antenna systems. The second installment will deal with measurement of the fields and how fields from power lines and antennas interact with living bodies and the differences between these interactions.
EPRI Industrial PQ Training Videos

As a follow-up to our Industrial Power Quality training classes, we have posting these complementary training videos to help solidify the concepts for both the utility members and their customers.

Video 1: 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.

Video 2: 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.

Video 3: 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.

PQ News Builder

For EPRI PQ Knowledge funders, we have created a tool that enables you to download articles related to power quality, including high-resolution images for printing or PDF file. You can select articles on a variety of topics from our Power Quality Database and download content in HTML or RTF format, which opens in Microsoft Word.

Start Collecting PQ Articles

Supplemental Project Opportunities!
Assessment of Retrofit Energy Saving Device (RESD) Technologies 

Retrofit energy saving device (RESD) technologies have garnered attention with a variety of performance claims including reduced energy costs and power quality mitigation. This project will undertake the evaluation of one or more RESD technologies to compare performance in the lab and field to performance claims.

Go to the Supplements Page