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Insulated 230 V AC Power supply & Variac

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frantal

Computer
Jun 5, 2011
6
I have built a project of a insulated Power Supply 230V AC followed by a Variac.
I would add a circuit to obtain DC output.
The voltmeter I bought has only 3 poles: one + = power supply, one = to test the voltage and common negative.
Could I connect all as I show in the schematic attached?
Many thank for the help and suggestions
 
 https://files.engineering.com/getfile.aspx?folder=b434a980-d921-4fba-9980-ea2b721f8246&file=Schema_x_variac_finale.jpg
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By virtue of those two isolation transformers the answer is yes.

Assumptions:
The RED 12V to the meter is simply to power it.
The Yellow + never exceeds the allowed meter input voltage high limit.

Keith Cress
kcress -
 
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