IEEE Std 1564-2014 Guide for Voltage Sag Indices identifies voltage sag indices and characteristics of electrical power and supply systems as well as the methods for their calculation. IEEE 1564 includes methods for quantifying the severity of individual voltage sag events, for quantifying the performance at a specific location via single-site indices, and for quantifying the system performance via system indices. The methods are appropriate for use in transmission, distribution, and utilization electric power systems.
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This page is maintained by Dan Sabin and was last updated on January 12, 2015.