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vinodk
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Join Date: Mar 2008
Posts: 25

Aluminum Windings in Transformer

12/10/2014 4:49 AM

Are there any rules/CEIG guidline for use of aluminum windings in transformers like the maximum rating/voltage class upto which we can use aluminum in India.

Thanks in advance

vinod
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Pathfinder Tags: transformers
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Noudge79
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Join Date: Feb 2011
Posts: 1119
Good Answers: 11
#1

Re: Aluminum windings in transformer

12/10/2014 5:12 AM

Never heard. Aluminum has a low melting point compared to copper. Heat might be an issue to your coils.

But, who knows any expert around here may knew some kind of stuff working.

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rakesh_semwal
Guru
India - Member - New Member Engineering Fields - Electromechanical Engineering - New Member

Join Date: Oct 2006
Location: India, 200 Km. North of Delhi.
Posts: 1393
Good Answers: 53
#2

Re: Aluminum Windings in Transformer

12/10/2014 8:29 AM

Aluminum wires are widely used for making of transformers.and you can also use it so long-

It is insulated with desired class of enamel.

Diameter is selected keeping resistivity, temp coefficient,and current in mind.

Magnetic core selected accordingly.(in case of aluminum winding total volume of winding will be more than of copper winding)

And So On---
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vinodk
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Posts: 25
#3
In reply to #2

Re: Aluminum Windings in Transformer

12/10/2014 11:47 PM

thanks for reply my concern is about any IE / CIEG / CEA guideline in India which limits the use of aluminum windings in medium power transformer. i.e maximum kVA rating upto which use of aluminum is allowed or any approvals from the Electricity boards
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pnaban
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Join Date: Jun 2010
Location: srilanka
Posts: 2725
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#4

Re: Aluminum Windings in Transformer

12/13/2014 9:34 PM

Did you try copper-aluminium alloy?.

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