Transformer Rewind

Pommie said:

And still no mention of frequency.

Mike.

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Pommie said:

Is that the voltage going into the primary of the transformer or supplying the circuit?

Mike.

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Pommie said:

Don't see any mention of frequency in that post.

Mike.

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spike47 said:

Has per schematic

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Nigel Goodwin said:

No, none at all, he's also rather vague about what it's for - but I suspect it's actually a PAT tester.

Depending on type, size, and weight PAT testers use either a conventional mains transformer (mine does, and takes some lifting) or a small and light switch-mode transformer. From his post #19 (assuming that's the actual transformer) it suggests it's conventional, as it shows separate mains windings

If he posted a picture of the transformer, all would become clear.

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spike47 said:

The problem with the Transformer is in the Primary winding, have had to take off a secondary winding ( the windind wire we are talking about ) to get at the Primary, all the secondary windings are fine, but since I removed that secondary winding I will have to replace with new wire as well has the Primary when I get it unwound .

Spike

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Nigel Goodwin said:

It's rather like pulling teeth - but presumably the core of the transformer (as you only posted a picture of the bobbin) is the conventional iron laminations?, E's and I's or whatever. The reason we're all trying to find out more is to confirm the transformer type - a switch-mode type is completely different, and used in smaller more modern PAT testers. In a switch-mode transformer it's likely to be important that Litz wire is used, in a conventional 50Hz there's not really any reason to use it.

LITZ WIRE

www.wires.co.uk

I'm presuming you can't source a transformer .

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