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Electric Motor Efficiency under Variable Frequencies and Loads


 

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ITRC Report No.

R 06-004

 
 

Length

65 pages

 
 

Sponsor

CSU/ARI, US Bureau of Reclamation, and California Energy Commission PIER

 
 

Full Reference

Irrigation Training & Research Center.  2006.  Electric Motor Efficiency under Variable Frequencies and Loads.  ITRC, California Polytechnic State University, San Luis Obispo, California, USA.

 

 

 

Summary

 

The primary research objective of this study was to determine motor efficiencies under varying speeds (induced by a VFD controller) and loads.  A broader objective was to provide sufficient information to designers and economists so that they could estimate total pumping plant power usage with a VFD-controlled installation.  Motors were tested with VFDs as well as across-the-line.

 


 

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