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Old 13th March 2013, 05:54 AM   #1
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Question Broken transformer wire..

So I seemed to have pulled on one of the wires on my toroidal transformer, and it broke off.. Whoops haha

Anyone know if I can just solder it back on? Would hate to have wasted $80 on it
Do I just cut through the plastic covering it?

Cheers
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Old 13th March 2013, 05:56 AM   #2
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Here is a photo.
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File Type: jpg image.jpg (578.4 KB, 95 views)
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Old 13th March 2013, 11:24 AM   #3
DF96 is offline DF96  England
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If you can re-attach it to where it broke off, without damaging adjacent windings or insulation, then you should be OK. If there is no stub left to attach to, then this is unlikely.
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Old 13th March 2013, 04:08 PM   #4
AndrewT is offline AndrewT  Scotland
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Location: Scottish Borders
That's the problem with solid single core copper wire. When flexed it fatigues and eventually breaks.
Best to change transformer wires to flex to avoid this fatiguing problem.

But you will probably have to remove the insulation around the leadouts to get adequate access to repair or replace.

And then have wind carefully wind all the insulation back on before using.
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regards Andrew T.

Last edited by AndrewT; 13th March 2013 at 04:37 PM.
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Old 14th March 2013, 12:36 AM   #5
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Oh so I wouldn't just be able to cut open the insulation an solder broken piece back on?
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Old 14th March 2013, 01:32 AM   #6
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It's not clear from your picture which wire is broken.
If it's a primary (240 Volt) you are probably screwed as they are usually put on first. If it's a secondary, you may be in luck but be very careful doing what Andrew & DF96 have advised. I am in Southwest Sydney if you require assistance.

Last edited by Bibliophile; 14th March 2013 at 01:37 AM.
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Old 14th March 2013, 01:36 AM   #7
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Aw crap :/ yeah it's the primary wire..
Ill give it a go, I guess I have nothing to loose haha
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Old 14th March 2013, 10:56 AM   #8
DF96 is offline DF96  England
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When soldering, you must be very careful not to damage adjacent wires or accidentally solder to two wires. A shorted turn is very easy to achieve, but I guess as the transformer is otherwise junk anyway you might as well take the risk.
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