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I would like to know the relative e

I would like to know the relative e

I would like to know the relative e

(OP)
I would like to know the relative efficiency of a 5 HP single phase vs. a 3 phase induction motor. The application is an air conditioning compressor (hermetically sealed motor). The same question would apply to a quirrel cage fan motor 1 HP.

RE: I would like to know the relative e

(OP)
Thanks for the reference but I couldn't find any info on 1 phase motor efficiency. Instead, they seem to consistently say  "single phase motors are not required to meet EPAct efficiencies".

RE: I would like to know the relative e


Have you tried contacting high-volume consumer-grade OEMs for their take on the matter?  Induction motors for hermetic refrigeration would be considered fairly specialized.  In the US, try Tecumseh and Copeland.  
  

RE: I would like to know the relative e

(OP)
Thanks for the suggestion, jbartos, but I couldn't find any effciency info for single phase motors.

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