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e.rose
Member

Join Date: Mar 2011
Posts: 5

Relation Between Energy Efficiency Grade and Electromotor Efficiency

03/03/2011 4:20 AM

hi to all

i'm new on cr4

i want to know is there any relation between energy efficiency grade of electromotor and it's efficiency?

if yes what is the relation or formula?
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lyn
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Join Date: Oct 2008
Posts: 42355
Good Answers: 1693
#1

Re: Relation Between Energy Efficiency Grade and Electromotor Efficiency

03/03/2011 9:59 AM

Hi, Welcome.

There is no formula.

The higher(better) the EER (energy efficiency rating) the more efficient the motor will be. This rating is acheived by testing the electrical device.
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e.rose
Member

Join Date: Mar 2011
Posts: 5
#2
In reply to #1

Re: Relation Between Energy Efficiency Grade and Electromotor Efficiency

03/04/2011 2:09 AM

CAN WE ORDER IT WHEN WE ARE ORDERING THE ELECTROMOTOR ?

DO THE MANUFACTUERE KHNOWS IT FOR A MANUFACTURED MOTOR?
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vicqui
Active Contributor

Join Date: Oct 2010
Posts: 18
#3
In reply to #2

Re: Relation Between Energy Efficiency Grade and Electromotor Efficiency

03/04/2011 2:44 AM

welcome!

just take a telephone call to the manufacturers to inquire all your questions...

"make the best better"
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e.rose
Member

Join Date: Mar 2011
Posts: 5
#5
In reply to #3

Re: Relation Between Energy Efficiency Grade and Electromotor Efficiency

03/07/2011 2:04 AM

manufacturer dosnot know it. i'm searching for a way to calculate it from electromotor charactristics and test reports. tnx
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lyn
Guru

Join Date: Oct 2008
Posts: 42355
Good Answers: 1693
#4
In reply to #2

Re: Relation Between Energy Efficiency Grade and Electromotor Efficiency

03/04/2011 8:07 AM

Most motor manufacturers offer energy efficient motors. These motors produce the same shaft output as older models, but use less energy.
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PWSlack
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
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#6
In reply to #2

Re: Relation Between Energy Efficiency Grade and Electromotor Efficiency

03/08/2011 11:50 AM

....only do turn off Caps Lock first.

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e.rose (2); lyn (2); PWSlack (1); vicqui (1)

Previous in Forum: Higher Rated Voltage Motor With Low Voltage VFD   Next in Forum: Cable Size for 355 KW 3 Phase Induction Motor

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