Electrical Contractor Magazine

July 2011: Control Systems

 

“VPP” is the latest electricity-system-of-the-future phrase in the expanding smart-grid lexicon.

Do your customers prefer a traditional or converged approach to their building automation infrastruc


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July 2011
By adding the right amount of heat, researchers have developed a method that improves the electrical capacity and recharging lifetime of sodium-ion rechargeable batteries, wh READ MORE
July 2011
Two different instruments that are often described as “works like radar” can test copper and fiber cabling. For copper, it is a time-domain reflectometer (TDR). READ MORE
July 2011
Several of my articles recently have been about low-voltage direct current (DC) powered equipment and telecommunications systems vulnerabilities to power quality phenomena, e READ MORE
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July 2011
Clean Edge released its second annual U.S. Clean Energy Leadership Index. READ MORE
July 2011
Lighting evolves based on need. Incandescent made way for brighter fluorescent. Fluorescent made room for solid-state lighting (SSL). READ MORE

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July 2011