USING AN IRRELEVANCE FILTER TO FACILITATE EFFICIENT RUL ANALYSES FOR UTILITY SYSTEM ASSETS

Systems and methods are described that estimate a remaining useful life (RUL) of an electronic device. Time-series signals gathered from sensors in the electronic device are received. Statistical changes are detected in the set of time-series signals that are deemed as anomalous signal patterns. Anomaly alarms are generated, wherein an anomaly alarm is generated for each of the anomalous signal patterns. An irrelevance filter is applied to the set of anomaly alarms to produce filtered anomaly alarms, wherein the irrelevance filter removes anomaly alarms associated with anomalous signal patterns that are not correlated with previous failures of similar electronic devices. A notification may be generated indicating that the electronic device has a limited remaining useful life based on at least the anomalous signal patterns associated with the filtered anomaly alarms.