Power Apparatus Defect Detection Method and System Improved Noise Removal Function

摘要

PURPOSE: By being created the TFP map, and the PRPD graph or the TF map and analyzing and diagnosing the deformity of the electric power equipment it eliminates the noise signal included in the PD signal detected from the electric power equipment and the electric power equipment damage detection method and system precisely can detect the partial discharge signal. CONSTITUTION: A PD(Partial Discharge) signal is detected(S200). The PD signal is changed to the pulse shape and the phase value of the pulse is extracted(S210). The PD signal is transformed through the fast Fourier transform to data of the frequency domain. It computes the dispersion and data distribution value on the PD signal dispersion value of the time domain and frequency domain become.