The Partial Discharge Location in power transformer using sectional winding transfer function in frequency domain

The Transformers are the main components in the power system. The partial discharge is a phenomenon that can be caused by impurities in the material of the insulation or moisture in Oil-paper insulated transformers and with expanding, resulting in the loss of insulation and fault in the transformer. So, the issue of locating partial discharge in transformer is unavoidable. In this paper, We used the Sectional Winding transfer function information, to locate the partial discharge in the frequency domain. results show that the strength of the location. also, the unavailability of transformer winding is the main problems to obtain transfer functions for locating partial discharge in transformer, therefore, We Simulated winding laboratory model for three-dimensional in Maxwell Software to calculate electrical parameters and we used LTSpice Software, for electrical model simulated.