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Iron Core Transformator No Load Current (Core material)

SS1_Raptor

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Hello friends

I have two types of iron to make the iron core Transformator
In the same number of rounds

220v to 12V

Type A No Load current = 130ma

Type B No Load Current = 100ma

What can we conclude empirically?
Is Type B Better?

Thanks
 

FvM

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May be better. For completeness, we would measure current phase angle. Current can be lower due to higher permeability or lower losses.
 

schmitt trigger

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You need to measure real core loss, with a wattmeter that measures true power= V*I*cos(alpha).

The core material with the lowest losses, all other things kept identical, is the best.

When I say all other things should be identical, I mean IDENTICAL. Including the applied voltage.
 
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