accidentally shorted secondaries for 2 seconds, how do I tell if it's ok?

[sbelyo 293]

OK, so I did something stupid and accidentally shorted the secondaries of an Avel Lindberg Y23 transformer for two seconds.  The voltage seems fine after I corrected the error.  Do you think it survived, and or what's the harm in using it?

 

 

[dsavitsk 4,302]

Why didn't your fuse blow?

[sbelyo 293]

it did, I thought I had a very small fuse in there.  Put a bigger one in and it held

[Blueman2 132]

if voltage is OK, then you probably dodged a bullet.  The issue comes in melting the insulation on the secondary wiring loop.  If you did burn off insulation, you would have nearby wires in the loop touching each other, which would create the effect of fewer loops of wire, which would in turn reduce voltage.  

In any case, I would go ahead and continue to use the transformer.  

[sbelyo 293]

Yeah, voltage seems ok.  I'll go ahead and put it under load to see if it drops below the voltage that it should be

[Whitigir 125]

There would have been magic smoke already if the secondary was shorted when the insulation  melted ? 

Edited December 11, 2018 by Whitigir

[sbelyo 293]

good, no magic smoke