Electric Motor Efficiency under Variable Frequencies and Loads - ITRC

Irrigation Training
and Research
Center

Furrow

Electric Motor Efficiency under Variable Frequencies and Loads

	ITRC Report No.	R 06-004
	Web Address	http://www.itrc.org/reports/vfd/r06004.pdf
	Length	64 pages
	Sponsor	CSU/ARI, US Bureau of Reclamation, and California Energy Commission PIER
	Full Reference	Irrigation Training and 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.

Acrobat Reader is required to open this file. If Acrobat Reader is not installed in your system, Click Here.