Power Quality Measurements in All Voltage Levels of the Utilities up to 150 kHz – Is it Possible?

Published by Roland Buerger (MBS AG), Business Development/R & D, MBS AG, Sulzbach-Laufen (Germany), Email: rbuerger@mbs-ag.com Bernhard Grasel (NEO MESSTECHNIK), Sales Manager, NEO Messtechnik, Zoebern (Austria), Email: bernhard.grasel@neo-messtechnik.com A reliable energy supply has meanwhile become an important location factor for many companies. While power failures and voltage fluctuations were among the most important parameters ofContinue reading “Power Quality Measurements in All Voltage Levels of the Utilities up to 150 kHz – Is it Possible?”

Challenges of Grid Integration of Wind Power on Power System Grid Integrity: A Review

Published by T.R. Ayodele, Department of Electrical Engineering, Tshwane University of Technology, Email: Ayodeletr@tut.ac.za,* A.A. Jimoh, Department of Electrical Engineering, Tshwane University of Technology, Email: JimohAA@tut.ac.za J.L Munda, Department of Electrical Engineering, Tshwane University of Technology, Email: MundaJL@tut.ac.za J.T Agee, Department of Electrical Engineering, Tshwane University of Technology, Email: AgeeJT@tut.ac.za *Corresponding Author; T.R. Ayodele, DepartmentContinue reading “Challenges of Grid Integration of Wind Power on Power System Grid Integrity: A Review”

Harmonic Response of Distributed Grid Connected Photovoltaic Systems

Published by M. Patsalides is with Dept. of Elec. & Comp. Eng., University of Cyprus, 75 Kallipoleos Avenue, P.O. Box 20537 Nicosia, 1678, Cyprus (e-mail: ee03pm1@ucy.ac.cy). A. Stavrou is with Electricity Authority of Cyprus, Amfipoleos 11, 2025, Nicosia, Cyprus (e-mail: astavrou@eac.com.cy). G. Makrides is with Dept. of Elec. & Comp. Eng., University of Cyprus, 75Continue reading “Harmonic Response of Distributed Grid Connected Photovoltaic Systems”

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”

Power Quality Standards for Utility Wind and Solar Power Plants

Published by David Mueller, E. H. Camm. Abstract Power quality standards exist to guide the interconnection requirements of large wind and solar plants.  IEEE guidelines exist for flicker and harmonics, while IEC guidelines exist for the measurement criteria of power quality phenomena and the characterization of wind turbine equipment.  There are also some uniform guidelinesContinue reading “Power Quality Standards for Utility Wind and Solar Power Plants”

Bridging the Gap Between Signal and Power

Assessing Power System Quality using Signal Processing Techniques Published by Math H.J. Bollen1, Irene Y.H. Gu2, Surya Santoso3, Mark F. McGranaghan4, Peter A. Crossley5, Moisés V. Ribeiro6, and Paulo F. Ribeiro7 Source: IEEE Signal Magazine, 2009 Signal processing has been used in many different applications, including electric power systems. This is an important category, sinceContinue reading “Bridging the Gap Between Signal and Power”

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”

Part 6: AC Power Distribution Systems & Standards (Power Quality)

Published by Nikola Zlatanov* Power Quality Terms Technical Overview Introduction Sensitive electronic loads deployed today by users require strict requirements for the quality of power delivered to loads. For electronic equipment, power disturbances are defined in terms of amplitude and duration by the electronic equipment operating envelope. Electronic loads may be damaged and disrupted, withContinue reading “Part 6: AC Power Distribution Systems & Standards (Power Quality)”