Mathematical Analyzing and Simulation Analysis of the Return Voltage of Oilpaper Insulation of a Transformer
Jiang Fa · Electric Switchgear · 2014
To use return voltage method to get polarized chart can be used to diagnose transformer insulation state,and equivalent circuit can analyze the polarization characteristic of its relaxation process,By studying the equivalent circait of Bebye model,a mathematical analysis method of identifying single equivalent circuit of Dedye maodel,which can quickly get equivalent circuit parameters and study the effect of its insulation system. For the derivation and simulation of the return voltage computing formula,it has proved validity use the polarized chart to judge oil paper insulation ageing characteristic,which provides a new direction for estimating transformer insulation state.