Hey guys I have a mystery transformer.
It has the following written on it.
E 1068001C
9968310
It is 110V Secondary w/CT.
It appears to have dual primaries for 110/220V operation.
The secondary winding looks to be 14awg.
It weighs about 15 pounds
Any thoughts on the VA rating?
It has the following written on it.
E 1068001C
9968310
It is 110V Secondary w/CT.
It appears to have dual primaries for 110/220V operation.
The secondary winding looks to be 14awg.
It weighs about 15 pounds
Any thoughts on the VA rating?
Attachments
how many amps do you get out of the secondary if you count on 3A/sq mm, that is 400 circular mils per amp? (Im a stricktly metric guy)
Weight and.size can give an idea about VA rating within 20-25%. Current density in windings is actually the sizing parameters.
If you had superconducting windings, VA rating could have.been infinite
Weight and.size can give an idea about VA rating within 20-25%. Current density in windings is actually the sizing parameters.
If you had superconducting windings, VA rating could have.been infinite
does this indicate a lowish flux in the core? Any idea of the value?
Is that typical of EI power transformers?
well, we are seeing a VA rating based on copper in the secondary combined with a high area of core.
Does that imply a low core flux?
Or is it that they simply used less copper in the secondary?
That would imply a high current density in the secondary and thus more I^2R loss creating a hot running transformer if used continuously at maximum VA.
Surely we can infer something from the two numbers we see.
Does that imply a low core flux?
Or is it that they simply used less copper in the secondary?
That would imply a high current density in the secondary and thus more I^2R loss creating a hot running transformer if used continuously at maximum VA.
Surely we can infer something from the two numbers we see.
on an EI? yes, but why do that? if that traffo is a working one, no need to touch it, just use it...
Education.
We have an unknown transformer.
What do we need to determine it's characteristics?
Weight, size, core area, lamination thickness, voltage, wire thickness/cross-sectional area, turns, turns ratio, winding resistances, etc.
How do we use those numbers to determine the transformer's characteristics?
How do we use those characteristics to determine suitable use or duty?
We have an unknown transformer.
What do we need to determine it's characteristics?
Weight, size, core area, lamination thickness, voltage, wire thickness/cross-sectional area, turns, turns ratio, winding resistances, etc.
How do we use those numbers to determine the transformer's characteristics?
How do we use those characteristics to determine suitable use or duty?
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