why there is a voltage drop across the secondary side of the transformer from other of the theoretical values in simulink?

the secondary output of the simulated three phase balanced system with transformer in simulink shows different values then the the one calculated theoretically on the secondry side. so i would like to know the answer for that.

Answer 1

[Joel Van Sickel]

Hello Teja,

For the voltage, you are simulating a non-ideal transformer with losses so it makes sense that your voltage is dropping on the secondary. Your voltage ratio is 1/25 between v1 and v2, and your current ratio is matching the inverse of this at 25. This model looks to be simulating correctly for the transformer parameters that you have included. If the voltage drop should be less, you can reduce the resistance on the transformer.

Regards,

Joel