Category Archives: Power Quality

What is Reactive Power?

Published by Peter W. Sauer, Department of Electrical and Computer EngineeringUniversity of Illinois at Urbana-Champaign, September 16th, 2003 Published in Power Systems Engineering Research Center (PSERC) Background Paper on Grid Reliability. Link: https://pserc.wisc.edu/resources/background.aspx Engineering talk Reactive power is a quantity that is normally only defined for alternating current (AC) electrical systems. Our U.S. interconnected gridContinue reading “What is Reactive Power?”

Power Quality Considerations of Wind Power Plants

Published by David Mueller, P.E., Manager, Power System Studies, Electrotek Concepts, Inc., Knoxville, Tennessee, USA Email: davem@electrotek.com Presented at 2010 Georgia Tech Fault Disturbance Analysis Conference Abstract Wind power plants are the fastest growing power generation source, and this trend is expected to continue. This paper describes the different types of wind power turbine electricalContinue reading “Power Quality Considerations of Wind Power Plants”

Potential Effects of Low Steady State Voltage for Energy Efficiency Improvements on PQ

Published by Bill Howe, P.E., Program Manager, EPRI Power Quality Manager Presented at EPRI PQ and Smart Distribution 2010 Conference and Exhibition:Transporting You into the 21st Century Distribution System, June 14th – 17th, 2010

Measuring Earth Resistance

Published by E. Hering, Dresden (Germany) Earth resistance is a key parameter in determining the efficiency of earthing systems. In this article we look at the measurement of earth resistance 1 A Few Fundamentals 1.1 Earth resistance and earth impedance The efficiency of an earthing system is principally determined by its impedance ZE. As canContinue reading “Measuring Earth Resistance”