Voltage Sag Analysis and Load Loss Detection

This paper discusses the impacts of voltage events such as sags/dips and short interruptions related to power quality issues. Whether originating at the utility or inside an end user’s facility, it is important to understand operational impacts and to differentiate nuisance events from disruptive events. Ascertaining the level of impact from voltage events allows easier prioritizing of alarms, creating and trending historical effects from disruptive perturbations, and determining locations and sizes of mitigation equipment.