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| SoP
011 - A : System Average Interrruption Frequency Index (SAIFI) for Urban
category |
|
|
4th Quarter |
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 |
Jan-09 |
4105775 |
1511251 |
2.72 |
|
| 2 |
Feb-09 |
1468116 |
1547023 |
0.95 |
|
| 3 |
Mar-09 |
1188154 |
1579361 |
0.75 |
|
|
| SoP
011 - B : System Average Interrruption Duration Index (SAIDI) for Urban
category |
|
|
4th
Quarter |
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 |
Jan-09 |
585.29 |
4677 |
2737207.12 |
1511251 |
1.81 |
| 2 |
Feb-09 |
433.56 |
4589 |
1989387.42 |
1547023 |
1.29 |
| 3 |
Mar-09 |
548.43 |
3547 |
1945228.01 |
1579361 |
1.23 |
|
| SoP
011 - C : Momentary Average Interruption Frequency Index (MAIFI) for Urban
category |
|
|
4th
Quarter |
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 |
Jan-09 |
3442 |
6384 |
21972785 |
1511251 |
14.54 |
| 2 |
Feb-09 |
2068 |
4628 |
9570215 |
1547023 |
6.19 |
| 3 |
Mar-09 |
2367 |
4252 |
10063794 |
1579361 |
6.37 |
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