This Issues Stories

1. Identifying and resolving UPS/genset harmonic issues
2. Roundtable discussion of drives and harmonics
3. The art of protecting electrical systems, part 17
4. U.S. DOE announces solar cell investment
5. IEEE and NFPA collaborate on arc flash initiative
6. Protecting systems from electrical transients
7. Case study: Alberta Children’s Hospital
8. New products for power quality and reliability

Announcements:
Wanted: 40 innovative engineers under 40
Consulting-Specifying Engineer will recognize 40 people under the age of 40 who are the emerging leaders in engineering practice, research, and education. Nominate a young engineer today for this prestigious distinction. Intent to enter nominations due April 11. Learn more here.

1. When UPS and gensets have issues
When high levels of reflected current harmonics from an uninterruptible power supply interact with the high reactance of a generator, it can be a recipe for lost critical loads.
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2. VFDs, harmonics drive power quality debate
A panel of engineering experts discusses how to mitigate harmonic effects, passive and active filters, and technological advances with these systems and variable frequency drives.
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3. The art of protecting electrical systems, part 17: computer software and electrical design
Part 16 of this continuing series looked at a computer program used to assist in electrical system design and protection. Part 17 continues the discussion about how this one computer program assists engineers in electrical system design.
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To access all articles posted so far in the Art of Protecting Electrical Systems series, click here.

4. U.S. DOE announces solar cell investment
The U.S. Dept. of Energy announced that it will invest up to $13.7 million over the next three years in 11 projects run by nine universities that will develop advanced solar photovoltaic manufacturing processes and products.
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5. IEEE and NFPA collaborate on arc flash initiative
The Institute of Electrical and Electronic Engineers and the National Fire Protection Assn. have undertaken a joint research project to expand the knowledge of electric arc phenomena. Schneider Electric announced a $500,000 contribution to the effort.
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6. Designing and Commissioning Protection Systems for Electrical Transients
On Thursday, March 20, Pure Power sponsored an informative Webcast session on “Designing and Commissioning Protection Systems for Electrical Transients.” For those who missed it, you can still attend the entire Webcast—including the lively Q&A session—in the CSE Webcast archives.
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7. Case study: Alberta Children’s Hospital
The bright, playful façade of Alberta Children’s Hospital in Calgary looks like a random stack of colored building blocks—and that’s how the kids who had a hand in its design wanted it. And even though the kids didn't design the standby power system, it is every bit as innovative.
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8. New products for power quality and reliability

• Parallel three-phase UPS system
• Biomedical- and laboratory-grade UPS systems
• surge protection devices
• Wireless submetering

For more articles about power quality and reliability, visit the Power Quality community at csemag.com.