Magnetization Branch in a transformer

[madeza]

How can I calculate the magnetization branch, I mean magnetization resistance and reactance. My only data is the nameplate of transformer: Apparent Power, Primary and secondary voltage, X/R ratio

Thanks for your support

 

[powersys]

Can you carry out test on the transformer? If you're allowed to do so, may be you can find the parameters via open- and short-circuit tests.

 

[shahidE636]

i is not possible to fine transformer megnetizing branch value from nameplate of the transformer. it can only be calculated from open / short circuit tests.

 

[madeza]

ok buddies, but I can't carry out any test... It`s a big size transformer 168MVA and the only data available is the nameplate... well, thanks for your replies...

 

[umesh49]

It is not possible without doing open circuit and short circuit test on transformer.

Umesh.