Oscillations in a transformer winding, with particular reference to the response to an applied surge

Existing single-limb theory is revised by differentiating between magnetizing and leakage inductance effects. Analysis of m.m.f. and flux in multi-limb transformers enables the theory to be extended to a winding on two or three limbs. Solution of these cases is obtained by resolution into equivalent single-limb windings. Transient response to surges is discussed and expressions are evolved for current and potential distributions.