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[Cites 0, Cited by 0] [Section 13] [Entire Act]

State of Bihar - Subsection

Section 13(3) in Bihar Electricity Regulatory Commission (Standards of Performance of Distribution Licensee) Regulations, 2006

(3)[ Adequate data shall be recorded to calculate the following reliability indices. The licensee shall calculate the values of these indices as per the formula and methodology specified below:
(a)System Average Interruption Frequency Index (SAIFI). It is the average number of interruptions (longer than 5 minutes) that a customer would experience and is calculated as:
nSAIFI = Σi = 1| (Ai* Ni)/NT
(b)System Average Interruption Duration Index (SAIDI). - It is the average outage duration for each customer served and is calculated as:
nSAIDI = Σi = 1| (Bi* Ni)/NT
(c)Momentary Average Interruption Frequency Index (MAIFI). - It is the average number of interruptions (less than 5 minutes) that a customer would experience and is calculated as:
nMAIFI = Σi = 1| (Ci* Ni)/NT
WhereAi = total number of sustained interruptions (each longer than 5 minutes) on ith feeder for the month.Bi = total duration of all sustained interruptions on ith feeder for the month.Ci = total number of momentary interruptions (each less than or equal to 5 minutes) on ith feeder for the month.Ni = Number of Consumer connected to ith feeder affected due to each interruption.Nt = total number of Consumers in the distribution licensee’s supply areas.n = number of 11 kV feeders in the licensed area of supply (excluding those serving predominantly agricultural loads).]