CAIFI

The Customer Average Interruption Frequency Index (CAIFI)^[1] is a popular index used in electrical reliability analysis.^[2] It is designed to show trends in customers interrupted and helps to show the number of customers affected out of the whole customer base.

${\mbox{CAIFI}}={\frac {\mbox{Total Number of Customer Interruptions}}{\mbox{Number of Distinct Customers Interrupted}}}$

References

↑ Yeddanapudi, Sree. "Distribution System Reliability Evaluation". Iowa State University. Archived from the original on 26 December 2011. Retrieved 18 June 2011.
↑ Power Distribution Planning Reference Book, H. Lee Willis, published by CRC Press, 2004, page 112

See also

Average Service Availability Index (ASAI)
ASIDI
ASIFI
ASUI
CAIDI
CAIFI
CTAIDI
MAIFI
SAIDI
SAIFI

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