winding a current transformer or adapt a wire coil?

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sdowney717

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I have a nice volt meter with AC current measuring installed on the boat.
I have dual 30 amp shore power.
I was thinking if you had a switch, you could toggle between sources.

The current transformer looks like a ring and I think it has an iron core wrapped with some small copper wire.

How would you make or can you buy or adapt some other coil to work?
I think the number of turns and wire gauge would have to be similar or the current measurement wont be the same.
$20 was the original cost so must be much lower or not worth the effort.
 

Hello sdowney717,

I agree to Frank.

It's better to buy a current transformer and the correct indicator.

Current transformer every time must have a connected indicator, else he transformer will blow up and very high voltage will appear at the connections of the instrument.

Regards

Rainer
 

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