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Old 19th August 2012, 10:57 AM   #5251
orelli is offline orelli  Italy
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thanks to Felipe and Andrew.
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Old 19th August 2012, 11:09 AM   #5252
AndrewT is offline AndrewT  Scotland
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Quote:
Originally Posted by merlin el mago View Post
Thick 3 wires primary, thin 4 wires secondary.
thick insulation and small copper area is likely to be high voltage winding tappings.
Thin insulation and big copper area is likely to be low voltage winding tappings.

Merlin:
Your advice/comment is very misleading in that it uses the wrong information to chance upon the correct conclusion.
Better to keep quiet than to make up the science you don't understand.
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Old 19th August 2012, 12:12 PM   #5253
orelli is offline orelli  Italy
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[QUOTE=AndrewT;3132256]thick insulation and small copper area is likely to be high voltage winding tappings.
Thin insulation and big copper area is likely to be low voltage winding tappings.

You are correct Andrew, this si the point!

ps. don't be afraid, I don't kill myself with a transformer.

Arios, Orazio
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Old 19th August 2012, 12:29 PM   #5254
Salas is online now Salas  Greece
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A picture settles it better.
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Old 19th August 2012, 12:33 PM   #5255
orelli is offline orelli  Italy
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Have you connected the yellow wire to chassis?
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Old 19th August 2012, 12:34 PM   #5256
AndrewT is offline AndrewT  Scotland
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That pic clearly tells me that this Rcore has a single primary marked Black/White (Blanc/Noir) for 230Vac duty
AND
it also tells me it is NOT a 3 wire primary !!!!!!!!!!
(I can't read French upside down), but I'll guess the yellow wire is an electrostatic screen that should be connected to Chassis.
AND
finally it tells me it has dual primaries marked Violet/Green and Blue/Red, they are insulated as pairs.
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Old 19th August 2012, 12:56 PM   #5257
Salas is online now Salas  Greece
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The yellow primary side wire is ''Ecran electro-statique'' i.e. electrostatic screen to be grounded. I connect that to the mains earth IEC prong and from there I run a wire to chassis ground. You may see a white one bolted to the trafo's bottom right corner.
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Old 19th August 2012, 02:40 PM   #5258
orelli is offline orelli  Italy
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I understood, thanks Nick.
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Old 19th August 2012, 07:42 PM   #5259
loek is offline loek  Netherlands
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Quote:
Originally Posted by AndrewT View Post
That pic clearly tells me that this Rcore has a single primary marked Black/White (Blanc/Noir) for 230Vac duty
AND
it also tells me it is NOT a 3 wire primary !!!!!!!!!!
(I can't read French upside down), but I'll guess the yellow wire is an electrostatic screen that should be connected to Chassis.
AND
finally it tells me it has dual primaries marked Violet/Green and Blue/Red, they are insulated as pairs.
You ment Dual Secundairies AndrewT.......
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Old 20th August 2012, 08:45 AM   #5260
AndrewT is offline AndrewT  Scotland
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Yes, That's three times in as many days. I going to book myself in!
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