What is Short Circuit Analysis, and Why is it Done?

Published by Carelabs (Carelabz), Website: carelabz.com A Short circuit analysis is used to determine the magnitude of short circuit current, the system is capable of producing, and compares that magnitude with the interrupting rating of the overcurrent protective devices (OCPD). Since the interrupting ratings are based by the standards, the methods used in conducting a short circuitContinue reading “What is Short Circuit Analysis, and Why is it Done?”

Section 4: System Voltage Considerations

Published by Bill Brown, P.E., Square D Engineering Services. Basic Principles The selection of system voltages is crucial to successful power system design. Reference [1] lists the standard voltages for the United States and their ranges. The nominal voltages from [1] are given in table 4-1. As can be seen, ANSI C84.1-1989 divides system voltagesContinue reading “Section 4: System Voltage Considerations”

Power Quality Issues, Problems, Standards & Their Effects in Industry with Corrective Means

Published by S.Khalid, Email: saifonline@rediffmail.com, & Dr. Bharti Dwivedi, Email: bharti_dwivedi@yahoo.com, Department of Electrical Engineering, I.E.T., Lucknow, India. International Journal of Advances in Engineering & Technology, May 2011. ©IJAET ISSN: 2231-1963 ABSTRACT Latest innovative ideas to make the life easier using the technology depends upon the application of power electronics in turn about power quality.Continue reading “Power Quality Issues, Problems, Standards & Their Effects in Industry with Corrective Means”

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”

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”

Key Changes and Differences between the New IEEE 519- 2014 Standard and IEEE 519-1992

Written by Ian Wallace, Chief Engineer, Power Quality Solutions, TCI® Technical Paper. Introduction IEEE Std 519-2014 is a newly published revision to the IEEE Recommended Practice and Requirements for Harmonic Control in Electric Power Systems. It supersedes the IEEE Std 519-1992 revision. The overarching goal of the 2014 revision is the same as the 1992Continue reading “Key Changes and Differences between the New IEEE 519- 2014 Standard and IEEE 519-1992”

Knowing IEC 61000-4-30 Class A

Published by Elspec Power quality refers to a set of electrical boundaries defined by various documented rules designed to allow electrical equipment to function in its intended manner without significant loss of performance or life expectancy, this includes the steady and stable supply of electricity delivered by the grid. In order to achieve this aimContinue reading “Knowing IEC 61000-4-30 Class A”