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John DeDad

Articles by John DeDad
Six-Pulse Conversion and Harmonics
Most modern industrial facilities have widespread applications of nonlinear loads, many of which represent a significant portion of the total facility
Flicker: Causes, Symptoms, and Cures
Voltage fluctuations in power systems can cause a number of harmful technical effects, resulting in disruption to production processes and substantial
Analyzing Communication Cable Noise
Sometimes the best way to describe how to analyze a communication cable common-mode (CM) noise problem is to describe an actual procedure. The following
Coordination Guidelines for Susceptible Electronic Loads — Part 2
As noted in Part 1 of this article, starting on page 22 of the September 2006 issue, there are many factors to consider before deciding how to provide
Coordination Guidelines for Susceptible Electronic Loads — Part 1
When it comes to providing suitable power, grounding, communications, and environmental control for a facility that has significant amounts of susceptible
The How's and Why's of Harmonic Distortion
At one time, almost all electrical loads were linear those that weren't made up such a small portion of the total that they had little effect on electrical
Applying Pole-Mounted Overvoltage Protection
A modern distribution system that feeds a facility having a significant environment of susceptible electronic equipment requires protection against lightning-induced
Looking For Sources of Transient Overvoltages
Protecting susceptible electronic equipment from AC power line disturbances is a major concern for most people, whether their business environment is
Simulating and Analyzing Transients in Power Systems
Electric utility engineers designing new transmission and distribution (T&D) systems and evaluating existing systems have relied on sophisticated software
Understanding Transients: A Primer
We've all heard the term used in discussions of possible power quality problems, yet we still seem to have a lack of understanding of what a transient
Four Key Steps in Applying Power Conditioning Equipment
Although you can select from a wide variety of power conditioning products, no single product can solve all your power quality problems. To get the best
Specifying the Right Fuse for Circuit Protection
Choosing a fuse isn’t what it used to be. Know the basics before you specify them
The Success of Energy Storage is All in the Timing
Most power quality disturbances that affect digitally dependant industries are short in duration, so the best option for providing seamless power may be energy storage technologies
Plenum Datacom Wiring: What You Need to Know
NEC cabling installation requirements are straightforward, but markings and new offerings may create confusion.
Power Quality Magazine Ceases Publication
We are announcing that Power Quality magazine will cease publication, with the October 2002 issue (Buyers’ Guide). However, you will still be able to get accurate and detailed power quality information by reading EC&M magazine.

White Papers
LED Industrial Lighting: Common Myths and Facts
LEDs have unique and compelling characteristics that make them ideal for industrial lighting applications. But there are a variety of misconceptions about LEDs, how well they work, how long they last, and more. Digital Lumens developed this whitepaper to dish up the facts around LEDs and address some common misunderstandings....More
Understand Arc Flash Safety for Motor Control Centers
An arc flash is associated with the explosive release of energy caused by an electrical arc, due to either a phase-to-ground or a phase-to-phase fault. This kind of fault can result from many factors – a dropped tool, accidental contact with electrical systems, buildup of conductive dust, corrosion or improper work conditions.....More
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EC&M Learning Center
2011 Electrician Exam Preparation Book & Journeyman Simulated Exam
Printed in full color, the 2011Exam Prep book covers Theory, Code, and Calculations in great detail. Clear colorful graphics...
2011 Understanding NEC Requirement for Solar Photovoltaic Systems
Solar power is new to most in the electrical industry and this expanding and exciting industry has created many NEC...
Photovoltaics for Commerical and Utilities Power Generation
This book provides an in-depth review of the solar industry development, and present-day state of the art, emphasizing...
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ON DEMAND: All You Ever Wanted to Know About GFCIs & AFCIs

Abstract:  In this webinar, Mike will not only explain the current NEC requirements for GFCIs and AFCIs, but he'll explain how they operate, what causes their premature failure, and when they won't provide the safety protection you might have thought they would.

 


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ON DEMAND: Workplace Electrical Safety: Prevention before Protection


Abstract: This webinar will teach attendees the difference between risk and hazard, and how the choice of system grounding has a direct impact on reliability and safety.

 

 

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Apr. 15, 2013
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The Westex Difference

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