Rms Variation Indices and Its Applications | Electrical Engineering

For many years, the only indices defined to quantify rms variation service quality were the sustained interruption indices (SAIFI, CAIDI, etc.). Sustained interruptions are in fact only one type of rms variation. IEEE Standard 1159-19957 defines a sustained interruption as a reduction in the rms voltage to less than 10 percent of nominal voltage for longer than 1 min. Sustained [...]