Circuit Breaker Condition Based Maintenance Using Advanced Fault Detection and Analysis on COMTRADE Event Data

A systematic and systemic analysis of historical data in power systems can contribute to the creation of condition based monitoring solutions for critical assets as circuit breakers. This work presents a methodology that automatic processes event-based data in COMTRADE format to obtain relevant metrics used in asset management. It considers the data processing, fault detection, classification and analysis stages at both, device and system level to aggregate and provide relevant metrics to end users. The methodology is validated using a sub-set of real life COMTRADE files from faults that occurred in the Portuguese Transmission System, between the years 2011 and 2021. The outcomes of this validation step are herein presented as well.