Published by Omar H. Abdalla, Fellow Egyptian Society of Engineers, Life Senior Member IEEE. Prof. O. H. Abdalla is with the Department of Electrical Power and Machines Engineering, Faculty of Engineering, 1 Sherief Street, P.O. Technology, P.C. 11792, Helwan, Cairo, Egypt. (e-mail: ohabdalla@ieee.org). Conference Paper: Keynote Lecture (KL-REN-5), International Conference on New Energy and EnvironmentalContinue reading “Technical Design Specifications and Criteria for Integrating PV Systems into Distribution Networks in Egypt”
Tag Archives: Voltage
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”
Low Voltage Distribution Board Safety
March, 2007 Published by Terry Chandler Director of Engineering, Power Quality Thailand LTD/Power Quality Inc., USA. Emails: terryc@powerquality.org, terryc@powerquality.co.th Accidental Death is REAL!! Electrical Shock Fatalities in the USA Electric shocks are responsible for about 1,000 deaths in the United States each year, or about 1% of all accidental deaths. Electric shocks cause death in 3-15% of cases.Continue reading “Low Voltage Distribution Board Safety”
Part 2: AC Power Distribution Systems & Standards
Published by Nikola Zlatanov* Voltage Classifications ANSI and IEEE® standards define various voltage classifications for single-phase and three-phase systems. The terminology used divides voltage classes into: Low voltage Medium voltage High voltage Extra-high voltage Ultra-high voltage Table 1.1-1 presents the nominal system ese classifications. Voltages and Voltage Ranges (From IEEE Standard 141-1993) BIL—Basic Impulse LevelsContinue reading “Part 2: AC Power Distribution Systems & Standards”
Overview of IEEE STD 1564-2014 Guide for Voltage Sag Indices
Published by Daniel Sabin, Electrotek Concepts , USA and Math Bollen, Luleå University of Technology, Sweden Emails: d.sabin@ieee.org & m.bollen@ieee.org Published in 23rd International Conference on Electricity Distribution, Lyon, 15th-18th June, 2015 ABSTRACT IEEE Std 1564-2014 Guide for Voltage Sag Indices is a new standard that identifies appropriate voltage sag indices and characteristics of electricalContinue reading “Overview of IEEE STD 1564-2014 Guide for Voltage Sag Indices”
Voltage Tolerance Boundary
Published by Pacific Gas and Electric Company (PG&E), January 1999. The only national standard for utilization voltage regulation is ANSI C84.1. Its title is American National Standard for Electric Power Systems and Equipment – Voltage Ratings (60 Hertz). The first version in 1954 was a combination of two standards, one from the Edison Electric InstituteContinue reading “Voltage Tolerance Boundary”
Voltage Transients Causing Diode Failures
Published by Dranetz – BMI Case Studies A plastic extrusion manufacturer in the mid-West had a 480V delta feeding a plastic extrusion machine. The ASD-driven synchronous motor in the extruder had a half-wave bridge rectifier circuit to provide excitation voltage to the pole coils. Diodes on the half-wave bridge exciter circuit were blowing out, andContinue reading “Voltage Transients Causing Diode Failures”
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