SoP 011 - A : System Average Interrruption Frequency Index (SAIFI) for AGDOM category
Year - 2009-10
Sr.
No
Month Ni - Number of Customers for each sustained interruptions (in numbers) NT - Total No of customers served
(in Numbers)
SAIFI = Ni/Nt
(Monthly SAIFI)
1 2 3 4 5= 3 / 4
1 Total  110020218 3700782 29.73
2 AG DOM 41307893 437089 94.51
3 Industrial 779342 78807 9.89
4 Urban 27692147 1840809 15.04
5 JGY 37604466 1986080 18.93
SoP 011 - B : System Average Interrruption Duration Index (SAIDI)  for AGDOM category
Year - 2009-10
Sr.
No
Month Ri =
Restoration Time for each sustained interruption event
(in hours)
Ni - Number of interrupted Customers for each sustained interruption event
(in numbers)
Ri* Ni -
Total customer interrution Duration
NT - Total No of customers served
(in Numbers)
SAIDI = Ri*Ni/Nt
(Monthly SAIDI)
1 2 3 4 5 = 3 * 4 6 7= 5 / 6
1 Total  345503 615 212385379 3700782 57.39
2 AG DOM 289908 176 51058286 437089 116.81
3 Industrial 3146 636 2000720 78807 25.39
4 Urban 7394 11007 81382068 1840809 44.21
5 JGY 35957 1948 70025857 1986080 35.26
SoP 011 - C : Momentary Average Interruption Frequency Index (MAIFI)  for AGDOM category
0 Year - 2009-10
Sr.
No
Month IMi =
Number of Momentary interruptions for the month
(in numbers)
Nmi =
Total no of customers for each momentary interruptions
(in numbers)
Imi =Nmi
Number of customer Mementary interruptions
(in numbers)
Nt -
Total no of customers served
(in numbers)
MAIFI=
Imi*Nmi/
Nt
1 2 3 4 5 = 3 * 4 6 7= 5 / 6
1 Total  540420 909 491234327 3700782 132.74
2 AG DOM 341017 432 147195909 437089 336.76
3 Industrial 9861 259 2552917 78807 32.39
4 Urban 33409 3541 118307417 1840809 64.27
5 JGY 137540 1544 212428938 1986080 106.96