Abstract

It has been shown in earlier chapters that it is possible to model 2- and 3-terminal transformers using leakage inductances or reactances associated with the leakage flux. The 2-winding leakage inductance is the self-inductance of the two windings, which takes into account that the sum of the amp-turns is zero. It is easily measured by applying a voltage to the first winding, shorting the second winding, and measuring the reactance, while keeping any other windings open circuited. It can also be calculated with finite element codes or analytic methods.