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

  1. ↑ Yeddanapudi, Sree. "Distribution System Reliability Evaluation". Iowa State University. Retrieved 18 June 2011.
  2. ↑ Power Distribution Planning Reference Book, H. Lee Willis, published by CRC Press, 2004, page 112

See also