Welcome to the PF.Vikas Kasireddy said:
Sorry, are you asking about an ideal transformer or a real transformer? I thought you were asking about a real transformer.Vikas Kasireddy said:
And I don't know what you mean by that term...Vikas Kasireddy said:
berkeman said:This would be more like the model I'' used to using in SPICE (although it may reduce to what you are asking about)...
https://upload.wikimedia.org/wikipedia/commons/3/39/TREQCCT.jpg
Vikas Kasireddy said:
As anorlunda said, this is not true when Is=0. You should keep the primary impedance "before" the magnetizing branch. But when the secondary is open, values of Xm and Rc are very much greater than R1 and X1, hence, the drop across primary impedance is neglected.Vikas Kasireddy said:
What you are calling as megnatizing resistance actually represents core losses.Vikas Kasireddy said:
The primary magnetizing impedance of a non-ideal transformer is a measure of the resistance and reactance that the primary winding presents to the flow of magnetizing current. It is affected by factors such as core losses and leakage inductance.
The primary magnetizing impedance can be calculated by dividing the voltage drop across the primary winding by the magnetizing current. It can also be determined by measuring the open-circuit voltage and short-circuit current of the transformer.
The primary magnetizing impedance is an important factor in transformer design as it can affect the efficiency, voltage regulation, and overall performance of the transformer. It is used to determine the appropriate size and number of turns for the primary winding.
In an ideal transformer, the primary magnetizing impedance is purely resistive and is equal to the primary winding resistance. In a non-ideal transformer, the primary magnetizing impedance also includes reactive components due to factors such as core losses and leakage inductance.
Yes, the primary magnetizing impedance of a non-ideal transformer can be reduced by minimizing core losses and leakage inductance. This can be achieved through proper transformer design and construction, such as using high-quality materials and optimizing the winding arrangement.
