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How do you calculate transformer turns ratio given primary and secondary winding voltage?

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Wiki User
2009-06-05 19:21:03

Turns Ratio = (Primary turns / Secondary turns) To calculate the

turns ratio you have to actually know the number of turns or wraps

on the primary and secondary coils. Nobody knows that usually the

manufacture of the transformer doesn't even know. So what you can

use as and equivalent is to calculate the voltage ratio. So what

you typically need to look for is the Input voltage and divid it by

the output volatge. Usually that would be as follows; (Primary

Voltage/Secondary Voltage) = Voltage Ratio

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