Top 5 Consulting-Specifying Engineer articles, January 26 to February 1: VFD and motor strategies, 2014 NEC review, energy efficiency economics, more

Articles about VFD and motor strategies for energy efficiency, the 2014 NEC, economics for energy-efficient electrical systems, pitfalls in specifying motors and VFDs, and data center design were Consulting-Specifying Engineer’s five most clicked articles from last week, January 26 to February 1. Were you out last week? Miss something? You can catch up here.


Consulting-Specifying Engineer Top 5 most read articles online, for Jan. 26-Feb. 1, covered VFD and motor strategies for energy efficiency, the 2014 NEC, economics for energy-efficient electrical systems, pitfalls in specifying motors and VFDs, and data center design. Link to each article below.

1. VFD, motor strategies for energy efficiency

A variable frequency drive (VFD) often is specified to reduce operational cost for pumps, fans, compressors, or any similar equipment with variable load profiles that may be found in a typical building. Here's how to specify a VFD to meet load conditions while achieving efficiency. 

2. Reviewing the 2014 NEC

It's time for electrical and power engineers to start reviewing the 2014 edition of the NEC to be prepared for when jurisdictions adopt it as local code. 

3. Economics of energy-efficient electrical systems

Energy efficiency is achievable in all building types, including mission critical environments. 

4. Common pitfalls in specifying motors and VFDs

Ten common issues that can affect functionality of motors and variable frequency drive (VFD) specification. 

5. Driving data center design

In the information age, data centers can be the beating heart of not just a building, but an entire global corporation. Engineers with experience working on data centers offer advice on their complex design and getting all the various aspects to compute. 

The list was developed using CFE Media's web analytics for stories viewed on, January 26 to February 1, for articles published within the last two months.

- Chris Vavra, production editor, CFE Media,

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