Brain Teaser Challenge - "June"

I attended a conference recently at the National Academy of Sciences in Washington DC, called the Humanitarian Technology Challenge. It was sponsored by the IEEE and the United Nations Foundation, among others. The objective was to organize volunteers from around the world to come up with better ways to apply technology to relieving human suffering.

Even though I am not really a power guy, I found myself engaged in a number conversations about power quality. We were talking about the amount of energy that gets converted to heat from harmonic distortion of the power waveform. Your challenge this month, should you choose to accept it, is to explain why most of the harmonic energy you find on the power mains is in the odd harmonics of the fundamental?


Reply to Butch Shadwell at b.shadwell@ieee.org (email), 904-410-9751 (fax), 904-410-9750 (v), 3308 Queen Palm Dr., Jacksonville, FL 32250-2328. (http://www.shadtechserv.com) The names of correct respondents may be mentioned in the solution column.

The Open Channel for Summer 2009

Front Page Tidewater Science Fair
Page 2 From the Chair
Page 3 IEEE Energy Policy Fly in to Capital
Hill
Page 3 IEEE Job Site Redesign
Page 3 Educator Conference Participation
Page 4 IEEE HR PES Update
Page 4 Brain Teaser—June 2009

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