Transformer

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S-fr

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Hey there ,
I got a transformer that is 25-25-0 plus 12-12-0, both em are dual output i need to know if i can just connect em in this same order to get more voltage ik, at the end the total watts will be the same, and if that's possible, is this safe?
 
IF (big if) the 25-0-25 group is completely isolated from the 12-0-12 group, then
.
.
.
.
maybe.

If the transformer is in fact 25-12-0-12-25. then a big NO.

ak
 
Post the resistance across the outputs. What is the resistance between the two 0V secondaries?
 
We are trying to determine if the 12 V windings and the 25 V windings are galvanically isolated. What is the resistance between one of the 25 V wires and one of the 12 V wires?

a) multi-megohms or infinite

b) anything else

ak
 
Now the question is, does your meter read "True RMS" AC voltage, peak AC voltage or ...?
All multimeters are designed to read the RMS voltage of a sinewave.
Since this is a transformer sine-wave output, whether the meter is average responding, calibrated to read RMS, or a true RMS meter will have a negligible difference on the value measured.
 
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