Christian - University of Stuttgart Germany
Feser - University of Stuttgart Germany
Sundermann - RWE Encrgie AG, Essen Germany
Loppacher - laefely Test AG, Basel Switzerland

The transfer function (TF) describes the frequency behaviour of a two port. To determine the TF of a transformer, the assembly is considered as a linear, complex, time-resistant and passive network. One input force X(f) and several output signals Y;(f), have to be defined.

Transfer Function, types of comparison, winding displacements, radial deformations