Achieving the exact equivalent circuit of a large-scale transformer winding using an improved detailed model for partial discharge studyPartial discharge (PD)TransformersFinite element analysisEquations of state
Using these equations, all the equivalent circuit parameters are programmed in state-space matrices to calculate PD signal response between and along with transformer winding sections. Then, finding the model parameters through FEM analysis will be explained in the fourth section. In the fifth section...
The method gives a flexibility to choose a range of practically observed reactance to resistance ratio (X/R) of transformer and also allows to use a range of dc current limiting resistances used in the high voltage power supply test circuit. The non-linearity of the system is also considered...