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What is System Average Interruption Duration Index mean?
The System Average Interruption Duration Index (SAIDI) is commonly used as a reliability indicator by electric power utilities. SAIDI is the average outage duration for each customer served, and is calculated as:
SAIDI = ∑ U i N i N T {\displaystyle {\mbox{SAIDI}}={\frac {\sum {U_{i}N_{i}}}{N_{T}}}}
where N i {\displaystyle N_{i}} is the number of customers and U i {\displaystyle U_{i}} is the annual outage time for location i {\displaystyle i} , and N T {\displaystyle N_{T}} is the total number of customers served. In other words,
SAIDI = sum of all customer interruption durations total number of customers served {\displaystyle {\mbox{SAIDI}}={\frac {\mbox{sum of all customer interruption durations}}{\mbox{total number of customers served}}}}
SAIDI is measured in units of time, often minutes or hours. It is usually measured over the course of a year, and according to IEEE Standard 1366-1998 the median value for North American utilities is approximately 1.50 hours.
referencePosted on 18 Dec 2024, this text provides information on Miscellaneous in Networking related to Networking. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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