Transformers - winding resistance and leakage reactance

[vvl92]

transformers -- winding resistance and leakage reactance

Does anyone know what is meant by:
'determine the combined winding resistance and leakage reactance referred to the primary side'?

 

[berkeman]

Does anyone know what is meant by:
'determine the combined winding resistance and leakage reactance referred to the primary side'?

Yes. When you drive a test signal into the primary side of a transformer, the load presented by the transformer is a combination of the magnetizing and leakage inductances of the transformer, along with the winding resistances, and the transformed load on the secondary. Are you familiar with such a model of transformers, and are you familiar how the secondary load impedance transforms across to the primary side?

 

[berkeman]

BTW, this wikipedia page on transformers discusses the model part-way down the page:

http://en.wikipedia.org/wiki/Transformer