Applicability of Parameterized Time frequency Illustrations for the Analysis of Impulse Fault Current Signals

Condition Monitoring of signals in the time-frequency plane are important as they constitute hidden attributes. Parameterized Time frequency illustrations indicating optimistic results for nonlinear signals. Impulse fault of a transformer is considered for diagnosis and the obtained current signals are analyzed using parameterized Time frequency illustration. The parameterized methods comprise of Chirplet Transform, Polynomial Chirplet Transform, Spline Chirplet, General Warblet Transform and Parameterized Resampling Time-Frequency Transform. The results demonstrate the instantaneous frequency fluctuations of impulse current fault signals in time frequency region and a comparative analysis has been carried out.