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Question
What is GD2(kg-m2) for Sq. cage ind. motor?
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
gd2 is the value which is meant to check that whether a
given motor will mingle with an impeller or not. Its a
sought of age of fan and motor.

Technically , it tells us about the measure of the ability
of the motor to attain its a rated speed from rest.

This is calculated with the formula
4 x m x r2

m = mass of the impeller

r = radius of gyration

r shall be 0.4 times the radius of impeller

I hope its sought of clear now
 
Is This Answer Correct ?    27 Yes 19 No
Gyan Guru
 
Answer
# 2
Dear sir,
Please give the answer my question
I have one blower its impeller dia 1200mm
impeller width -115mm
shaft dia 90mm
weight of impeller - 300kgs
impeller rotating speed -1800 Rpm
Blower motor 125Hp/4p(belt drives)
Blower pressure - 700 mmWG
now! what is the Gd square valve
what is the axial loads
 
Is This Answer Correct ?    5 Yes 5 No
Sahayam
 
 
 

 
 
 
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