Category Archives: Power Quality

Summary of U.S. Distribution System Power Quality Levels

Published by D. D. Sabin, Email: dsabin@electrotek.com D. L. Brooks, Email: dbrooks@electrotek.com Electrotek Concepts, Inc., 409 North Cedar Bluff Road, Suite 500, Knoxville, Tennessee 37923-3605, United States A. Sundaram, Email: asundara@epri.com S. Bhatt, Email: sbhatt@epri.com Electric Power Research Institute, 3412 Hillview Avenue, Palo Alto, California 94304-1395, United States Abstract The Distribution System Power Quality ProjectContinue reading “Summary of U.S. Distribution System Power Quality Levels”

Statistical Analysis of Voltage Dips and Interruptions – Final Results From the EPRI Distribution System Power Quality Monitoring Survey

Published by D. D. Sabin, Email: dsabin@electrotek.com T.E. Grebe, Email: tgrebe@electrotek.com M. F. McGranaghan, Email: markm@electrotek.com Electrotek Concepts, Inc., 408 North Cedar Bluff Road, Suite 500, Knoxville, TN, 37932 USA, Tel: +1-423-470-9222, Fax: +1-423-470-9223 A. Sundaram, Email: asundara@epri.com EPRI, 3412 Hillview Avenue, Palo Alto, CA, 94304 USA, Tel: +1-650-855-2304, Fax: +1-650-855-8997 SUMMARY This paper describesContinue reading “Statistical Analysis of Voltage Dips and Interruptions – Final Results From the EPRI Distribution System Power Quality Monitoring Survey”

Learn What is the Purpose of Lightning Arrester and Why is Testing Necessary

Published by Carelabs (Carelabz) A Lightning Arrester, Surge arrester or Line arrester is a device used on electrical power systems and telecommunications systems to protect the insulation and conductors of the system from the damaging effects of lightning. The typical Lightning Arrester has a high-voltage terminal and a ground terminal. When a lightning surge (or switching surge) travelsContinue reading “Learn What is the Purpose of Lightning Arrester and Why is Testing Necessary”

Detailed Analysis of Class F1/F3 Flickermeter Implementations According to the Recent IEC Standards

Published by Pavel Štěpán, Technical University of Liberec – CZE, Email: Pavel.Stepan@tul.cz Leoš Kukačka, Technical University of Liberec – CZE, Email: Leos.Kukacka@tul.cz Jan Kraus, Technical University of Liberec – CZE, Email: Jan.Kraus@tul.cz CIRED 23rd International Conference on Electricity Distribution, Lyon, 15-18 June 2015. Paper 1077. ABSTRACT The paper is concerned with specific problems of flicker meterContinue reading “Detailed Analysis of Class F1/F3 Flickermeter Implementations According to the Recent IEC Standards”

The Seven Types of Power Problems

Published by Joseph Seymour, Schneider Electric – Data Center Science Center White Paper 18 Rev 1. Executive Summary Many of the mysteries of equipment failure, downtime, software and data corruption, are the result of a problematic supply of power. There is also a common problem with describing power problems in a standard way. This whiteContinue reading “The Seven Types of Power Problems”

Power Quality: New Tendencies in Standardization and Challenges of Energiewende

Published by Dr. Michael Schwenke, Siemens AG, Germany, Email: Michael.Schwenke@siemens.com Manfred Unterweger, Siemens AG, Germany, Email: Manfred.Unterweger@siemens.com CIRED 23rd International Conference on Electricity Distribution, Lyon, 15-18 June 2015. Paper 0372. ABSTRACT Energiewende changes the structure of power supply networks from traditional supply structures to decentralized structures. The measurement of power quality has to be adaptedContinue reading “Power Quality: New Tendencies in Standardization and Challenges of Energiewende”

Learn About How Earth Fault Loop Impedance Testing Is Done

Published by Carelabs (Carelabz) Why Earth Fault Loop Impedance Test is Done?  Every circuit must be tested to make sure that the actual loop impedance does not exceed that specified for the protective device concerned. Because of the severity of coming into contact with an electrical fault, having your electrical installations and power points tested forContinue reading “Learn About How Earth Fault Loop Impedance Testing Is Done”