The effects of windings current density values on leakage reactance in a 25 kA current injection transformer

Abstract

The leakage reactance is the most effective parameter in voltage drop in transformers and it's depending on leakage flux in windings area. The windings area is dependent on current density in windings conductor, so windings area varies with the current density. Two different current density in transformer shows that the leakage reactance is dependent on current density in windings conductor and higher current density lead to less leakage reactance and less voltage drop. The comparison of simulation results in two different cases confirms the effects of current density on leakage reactance