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| gtslabs 2005-07-11, 12:25 pm |
| I have some large transformers that are not labeled. Is there a way to
measure resistance across different legs and calculate the primary and
secondary voltages?
| |
| Blueyonder 2005-07-11, 6:25 pm |
| no
"gtslabs" <gts@nb.net> wrote in message
news:1121088649.823914.199710@f14g2000cwb.googlegroups.com...
quote:
> I have some large transformers that are not labeled. Is there a way to
> measure resistance across different legs and calculate the primary and
> secondary voltages?
>
| |
| operator jay 2005-07-11, 11:25 pm |
|
"gtslabs" <gts@nb.net> wrote in message
news:1121088649.823914.199710@f14g2000cwb.googlegroups.com...
quote:
> I have some large transformers that are not labeled. Is there a way to
> measure resistance across different legs and calculate the primary and
> secondary voltages?
>
If you are able to apply voltages and watch current with an oscilloscope,
you can see where saturation sets in . The nominal voltages would be just a
little below this.
j
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| Mark Bucci 2005-07-14, 12:25 pm |
| The secondary voltage will be the result of applying a primary voltage.
Measuring the resistance can give you a rough idea of the turns ratio (the
relationship between primary and secondary), but having said that the
transformer's behaviour will also be affected by characteristics of the
input, including magnitude, frequency and harmonics.
-Mark
University of Wollongong, Australia
"gtslabs" <gts@nb.net> wrote in message
news:1121088649.823914.199710@f14g2000cwb.googlegroups.com...
quote:
>I have some large transformers that are not labeled. Is there a way to
> measure resistance across different legs and calculate the primary and
> secondary voltages?
>
| |
| arem_29 2005-07-14, 12:25 pm |
| hi!... hope u doin fine!.. try to check this link,
http://www.tpub.com/electronics.htm
it might help you out!.. i hope that helps!.. :D
gtslabs wrote:
quote:
> I have some large transformers that are not labeled. Is there a way to
> measure resistance across different legs and calculate the primary and
> secondary voltages?
|
|
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|