Analysis of Partial Discharge Propagation Along 750 kV Transformer Winding with Transmission Line Modelling
摘要
Partial discharge (PD) is one of the most important indicators for high voltage power transformer diagnostics. For better detection, one has to know the PD propagation characteristics along transformer windings. This paper utilizes the multi-conductor line theory to establish the winding model for 750 kV transformer. With this model, PD occurrence at a specific winding location is simulated. The derived result can be used to improve the PD detection accuracy for high voltage power transformers.