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The objective of this paper is to develop Over Current and Over Voltage Protection of Permanent Magnet Brushless DC Motor (PMBLDCM) using Wavelet Analysis. The Motor's operating point is continuously changing with time and the motor is never operating at a constant speed throughout its operation. A Motor operating in a non-stationary environment has a non-stationary voltage and current signals. Fourier Transform (FT) cannot be used for analysis of non-stationary signals, because FT tells aboutdoi:10.9790/1676-09537986 fatcat:v2svlqmfhvhe5eq5auhgbamtey