Research on On-Line Winding Deformation Monitoring of Power Transformer Based on Parameter Identification

As deficiency of conventional methods of winding deformation monitoring of transformer, a new way for monitoring winding deformation is proposed. After identifying parameters of transformer such as short-circuit reactance and resistance with parameter identification method, on-line winding deformation monitoring of transformer is actualized according to the change of parameter when winding deformation happens. A system of on-line winding deformation monitoring of transformer is simulated, the result proves this method´s efficiency