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Articles Tagged with ''VFD''

Case In Point

Department store finds savings up on the roof

April 1, 2014
When the Dillard’s department store in Naples, FL, reached the point where its rooftop HVAC equipment was in need of replacement, company officials decided to put energy savings as the primary goal.
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AHRI launches VFD, datacom cooling certifications

November 7, 2013

The Air-Conditioning, Heating, and Refrigeration Institute has introduced two new certification programs for variable frequency drives (VFDs) and datacom cooling (DCOM) equipment.


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Motors For Use With VFDs

January 9, 2012
The questions can pile up quickly when it’s time to specify a motor to pair with a variable drive. The information available sometimes leaves one wondering just as much about the information that is unavailable. Will a decision hold up not only in the actual application but also possibly in court? Wade into compatibility, spec terms, partial loads, and more as we try to get this motor running.
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VFDs

November 2, 2011
The VARIOspeed® VFD is designed specifically for pressure control applications. As the flow and head conditions change in the pumping system, the VARIOspeed® VFD is able to automatically control the pump speed and maintain a constant discharge pressure.
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Case In Point

Energy savings give bank a higher rate of return

May 1, 2011
An energy analysis paid for itself at this Illinois bank by identifying energy savings opportunities. When Jason Vogelbaugh, director of Energy Solutions at Alpha Controls & Services, (Schneider Electric’s Rockford,
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3/27/14 11:00 am EST

How to Calculate Backup Power Supply Requirements for Your Facility

On-Demand This webinar reviews how to determine power requirements of facility loads; electrical characteristics and impact of different types of loads such as large motors and UPS systems on power supply sizing; acceptable power sources and other constraints applied by building codes; and how software tools can be used to simplify the process of calculating backup power requirements.  

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2014 April

Check out the April 2014 issue of Engineered Systems, with features on backup power supply requirements, cyberattacks, and much more!

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Design Flaws

Following up on Howard McKew's April "Tomorrow's Environment" column: Have you ever thought twice about reporting problems with another firm's design? What did you do?
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Tomorrow's Environment Podcast

This series from longtime columnist and chronic forward-thinker Howard McKew covers a lot of ground -- from retrocommissioning to systems training, on toward checklists for drawings and tips for meeting minutes. Click HERE to be taken to the podcast page!

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