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Question
importance of air gap in transformer
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
We know that,The air gap controls the amount of magnetic
field produced for a given current. In the equation
∫HdL = n i , H is quite small in the iron because of its
high permeability. Nearly all of the integral accumulates in
the air gap even though the gap is very small compared to
the part of the closed path length in the iron. It reduces
the tendency of the iron to saturate to avoid harmonics in
the current.

thanking u
http://a2zengineering.blogspot.com/
z_hosen@yahoo.com
 
Is This Answer Correct ?    7 Yes 1 No
Md. Zakir Hosen
 
Answer
# 2
Actually the airgap in transformer is for transfer the
primary power to the secondary. Means the primary winding
input voltage level will be step up/down(Depends on type of
trf.) to the secondary winding.

This is exactly same with wats happening in a 3 phase ind.
motor between stator & Rotor.

Thats why we are calling ind. motor as "Rotating Trf".

Thanks ....
 
Is This Answer Correct ?    8 Yes 3 No
Arockia Doss.a
 
 
 
Answer
# 3
None of the above answers gives a satisfactory explanation.....some1 plz elaborate it....Thanks. 
Is This Answer Correct ?    1 Yes 0 No
Engr. Kashif
 
Answer
# 4
It limits the short circuit current of the transformer and it also control the Saturation of the core. 
Is This Answer Correct ?    1 Yes 0 No
Rakesh Patel
 
Answer
# 5
hi
air gap depend upon the applied voltage / range of voltage
in that gap.if it is not sufficient gap then breakdown of
the voltage will occur.
 
Is This Answer Correct ?    1 Yes 6 No
Nain
 

 
 
 
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