Passive Harmonic Filter Design

Published by Kerim Ozer, Senior Electrical Engineer, Enspec Power Ltd. Email: kerim.ozer@enspecpower.com A technical review of how passive harmonic filter types have an impact on network impedance profiles in terms of damping. A review of a harmonic filter design study was carried out for an industrial Plant, which included a total capacity of >100MW smelters,Continue reading “Passive Harmonic Filter Design”

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”

Fluke 43B PQ Analyzer – Motor Loads

Applications Guide, April 2001 Published by Fluke Corporation Introduction This section provides examples that you can use to troubleshoot induction motors with and without an adjustable speed drive. Figure 4. Distribution System: Motor Loads Induction Motors Checking Voltage Imbalance For 3 phase induction motors, the supply voltage on all three phases should be in balance.Continue reading “Fluke 43B PQ Analyzer – Motor Loads”

Fluke 43B PQ Analyzer – Lighting Loads

Applications Guide, April 2001 Published by Fluke Corporation Introduction This chapter provides applications of problems and phenomena that are likely to occur in a lighting system. Figure 3. Distribution System: Lighting Loads Measuring Current Harmonics Check whether the lighting system causes excessive harmonics. These may influence the system. Look at the harmonics spectrum and readContinue reading “Fluke 43B PQ Analyzer – Lighting Loads”

Fluke 43B PQ Analyzer – Receptacle Branch Circuits

Applications Guide, April 2001 Published by Fluke Corporation Troubleshooting Electrical Distribution Systems The most efficient way to troubleshoot electrical systems, is to begin at the load and work towards the building’s service entrance. Measurements are taken along the way to isolate faulty components or loads. This chapter describes typical measurements for troubleshooting problems on receptacleContinue reading “Fluke 43B PQ Analyzer – Receptacle Branch Circuits”

Fluke 43B PQ Analyzer – Basic Measurements

Applications Guide, April 2001 Published by Fluke Corporation Introduction This section provides easy-to-do measurements which you can perform almost anywhere. Begin with these examples to get started with the Fluke 43B. Note: It is a good idea to reset the Fluke 43B before you start a new application. This way, you always start from theContinue reading “Fluke 43B PQ Analyzer – Basic Measurements”

Earthing System

How To Choose The Right System Earthing Arrangement? Application Note, 2009 Published by Schneider Electric Source: https://www.se.com/ww/en/download/document/DBTP72ART_EN/ All System Earthing Arrangements (SEA) provide equivalent protection of life and property. However each has certain advantages and inconveniences in other terms that may be important for a given installation. In both commercial and industrial applications, needs change,Continue reading “Earthing System”

Defining Interharmonics

White Paper, April 2013 Contributed by Chris Mullins, VP of Engineering and Operations, Power Monitors, Inc. Email: cmullins@powermonitors.comWebsite: http://www.powermonitors.comTel: 800.296.4120 ABSTRACT Interharmonics are frequency components at noninteger harmonics of the line frequency. The proliferation of large DC-converter variable speed drives and wind/solar inverter generation has led to an increase in interharmonic levels. Troubleshooting the resultingContinue reading “Defining Interharmonics”

The Need for Harmonic Modeling and Mitigation in Generator Applications: A Conversation and Guide

White Paper 08-03-2021 Published by Michael McGraw, USA National Sales Manager, Mirus International Inc., Introduction & Structure It is widely accepted that performing harmonic studies for non-linear applications is important to ensure a workable and energy efficient installation. It is also accepted that these harmonic studies be performed under normal source conditions and maximum operatingContinue reading “The Need for Harmonic Modeling and Mitigation in Generator Applications: A Conversation and Guide”

Calculate Neutral Current in Dran-View 7

Published By Terry Chandler, Director of Engineering, Power Quality Thailand LTD/Power Quality Inc., USA. March 2021. Emails: terryc@powerquality.org, terryc@powerquality.co.th Application note to calculate neutral current in DV7 or manually from RMS values manually and automatically with DV7 Enterprise math channels! The neutral current in a three-phase, four-wire wye system represents the imbalance of the three-phase conductors, also knownContinue reading “Calculate Neutral Current in Dran-View 7”