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Welcome, Guest Log In | P1 Cockpit | MyPQ License | EPRI.com Home PQ Library Applications Briefs Case Studies Commentaries EPRI PQ Products Meeting Archive PQ Color Book PQ Hotline Archive PQ Hotline Calls of the Month PQ News PQ Two-Pagers Signature Journal Solutions TechWatch Training Videos PQ Tools Grid-Side Solutions News Builder PQ Hotline: Ask the Experts Definitions of PQ Terms PQ CALCULATORS Conductor Derating Power Factor Correction Voltage Drop Learning Center Video Center PQ in Transmission and Distribution Standards & Guidance PQ Standards Groups Products & Services SEMI F47 Testing Power Quality Services EPRI PQ Software Open PQ Dashboard PQStandards (IEEE SCC-22) PQView Staff Bios About MyPQ Help You Are Here: X -- Describe the feature. Include Other EPRI.com PQ Products 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 . The Power Quality Investigator: An Overview EPRI members wanted a tool allowing them to access and internally deploy decades of EPRI research and expertise in identifying and mitigating industrial and commercial power quality issues. Enabled through EPRI’s Power Quality Program, EPRI’s PQ Investigator is specifically designed to meet the utility PQ engineer’s needs. Learn about this expert tool in this video. See the Video Join Now for 2021 Membership Proposal for a New Working Group in CIGRE CIGRE members should note that a new working group has been proposed to be created under the auspices of CIGRE C4. The new working group will aim to review existing PQ standards and practices from across the globe and compare and contrast them. Suggestions for “best practices” are also proposed to be reviewed by this working group. Please watch this space for more information. Download an overview document for this working group. 2013 Superbowl Power Outage On February 3rd, 2013, near the beginning of the third quarter of the NFL Super Bowl, the Mercedes-Benz Superdome in New Orleans experienced a thirty-minute power outage, which affected half of the stadium, including stadium lighting. EPRI engineers investigated the lighting aspect of the outage. The metal-halide lamps in the stadium require a cool-down period before restriking. This design characteristic may have been a factor in the duration of the outage of the stadium lights. Solutions include lamps with faster strike and re-strike, which may be achieved with foreseeable technology improvements. Another approach is to maintain the power to the lamps using "bridge" power, which provides temporary power to a stadium lighting system until backup generators activate and are brought online. See the complete article. How to Use the TIP Subscription Service EPRI’s TIP Subscription is a customized, bi-weekly subscription email that delivers information about the programs you choose. This document explains how to use this service. Download Now In PQ News : NIST Publishes Document on Monitor Synchronization The Pioneering Work by François Martzloff of NIST Call of the Month for February 2021 Via EPRI’s PQ Knowledge (PQK) Power Quality Hotline, a PQK member asked a question about problems that a customer experienced with an uninterruptible power supply (UPS) that shared the same transformer secondary with a three-phase welder. The batteries supplying the UPS had to be replaced on multiple occasions. Apparently, the UPS was activating far more often than it should, draining the batteries. Most Popular PQ Documents (Based on Clicks) ASD Ride-Through Methods Using Built-in Code Parameters 05/03/2017 Hotline Call About Measurements The Effects of High and Low Steady-State Voltages on End-Use ... Line Reactors The Impact of Voltage Sags on Process Equipment 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. Download the P1 Update 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. 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. See All Videos Careers | Contact EPRI | Copyright Policy | Privacy Statement | Terms of Use 800.313.3774 or 650.855.2121 EPRI 3420 Hillview Avenue, Palo Alto, California 94304 © Electric Power Research Institute, Inc. 2001- All rights reserved tag. *** -- Preproduction Software Acceptance EPRI Power Quality Online Resource Center Electric Power Research Institute (EPRI) 3420 Hillview Ave. Palo Alto, CA 94304 Copyright © 2020 Electric Power Research Institute, Inc. All rights reserved. As a user of this EPRI preproduction software, you accept and acknowledge that: This software is a preproduction version which may have problems that could potentially harm your system To satisfy the terms and conditions of the Master License Agreement or Preproduction License Agreement between EPRI and your company, you understand what to do with this preproduction product after the preproduction review period has expired Reproduction or distribution of this preproduction software is in violation of the terms and conditions of the Master License Agreement or Preproduction License Agreement currently in place between EPRI and your company Your company's funding will determine if you have the rights to the final production release of this product EPRI will evaluate all tester suggestions and recommendations, but does not guarantee they will be incorporated into the final production product As a preproduction tester, you agree to provide feedback as a condition of obtaining the preproduction software...