Wavelet analysis in monitoring and diagnosis of power circuit breakers

Monitoring of electrical equipment is a direction of current development in the maintenance domain. The method aims to establish the operation state of the monitored equipment. Fault diagnosis existing on power circuit breakers is very important aspect in emergency situations, when it must be interrupted by high current circuit breakers. This paper presents a model of vibration monitoring using Wavelet-Morlet transform. Here are reviewed theoretical problems of using Wavelet-Morlet transform, signal processing techniques and experimental results that highlight the difference between faulty equipment and one in a proper working condition.