A method for power systems alarm handling and fault location is presented. The method employs artificial neural network classifiers whose inputs are alarms from relays and circuit breakers operation, while the outputs identify the faulted system component. Fault location is determined even in cases of protection system failures or in the presence of noisy data. The employed methodology is illus...

This paper describes the benefits of using controlled switching technology on medium voltage circuit breakers. Although this technology has been used on high voltage networks for over 30 years, recent technological advances have permitted the development of a new generation of controlled switching devices for medium voltage. This paper reviews controlled switching device approaches, describes m...

In this paper we develop monitoring schemes that are able to detect and identify failures in power transmission lines by analyzing binary status information from relays and circuit breakers. The approach, which is based on Petri net models, requires very simple calculations (linear checks) during execution time and allows for concurrent/incremental processing of the information as it arrives at...

High-voltage circuit breakers are among the most important equipments for ensuring the efficient and safe operation of an electric power system. On occasion, circuit breaker operators may wish to check whether equipment is performing satisfactorily and whether controlled switching systems are producing reliable and repeatable stress control. Monitoring of voltage and current waveforms during sw...