Yearly Archives: 2021

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”

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”

What is Harmonic Study and Analysis and Why it is Done?

Published by Carelabs (Carelabz) The current significant growth in electronic devices focusing providing our installations has given rise to a significant change in the last few years on the type of loads connected to the electrical distribution system. Not so long ago the only concern there was when using electricity at home, in establishments andContinue reading “What is Harmonic Study and Analysis and Why it is Done?”

What is Earth Grounding?

Published by Carelabs (Carelabz) IEEE defines earth as a conducting connection, whether intentional or accidental, by which an electric circuit or equipment is connected to the Earth, or to some conducting body of relatively large extent that serves in place of the earth. The connection(s) to Earth are done by an assortment of metallic means intended to beContinue reading “What is Earth Grounding?”