Voltage sag stochastic estimate

The probabilistic nature of the electromagnetic phenomenon that characterizes a voltage sag makes the establishment of tendencies based only upon monitoring results quite a difficult work to be done. Simulations of short circuits deterministically predict their behavior in various types and situations of possible short circuits. The results of these simulations are used to make up a database whose information can be dealt with stochastically. This allows a faster inference of the measure of voltage sag occurrences. This article describes the methodology of stochastic estimate of the quantity and characteristics of voltage sags, which may affect a range of consumers. An example is used to demonstrate the application of the methodology and its results are presented herein.