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Motor efficiency

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AKVS24

Mechanical
Joined
Mar 22, 2012
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9
Location
SG
What is the reason for efficiency of IE3 motors to be greater than IE2 motors?
 
It's better by one. Just like a guitar amp is better if the dial goes to 11 instead of 10.

spinal_tap_but_it_goes_to_eleven1.jpg


Seriously though, are you asking for the differences in the standard or are you asking how the manufacturers attain the higher efficiency?




"Dear future generations: Please accept our apologies. We were rolling drunk on petroleum."
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As probably you now, according to IEC 60034-30:2009 the motor efficiency was stated as IE1[STANDARD] IE2[HIGH efficiency] IE3 [Premium Efficiency].
The old standard EN 60034-2:1996 was two: EFF2 standard efficiency and EFF1 high efficiency.
IEC 60034-30:2009 states new symbols for EFF1 and EFF2 as you could see in the following article:
EFF2 standard efficiency>>> IE1
EFF1 high efficiency becomes IE2
IE3 is a new classification for premium efficiency
The reason is the reduced energy consume [2-8% less than standard in IE3-premium efficiency].This is the new international
policy in order to reduce pollution and earth heating produced by power plants[Global Warming Policy].
The same policy which requires high lighting efficiency bulb and so on.
 
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