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| SoP
011 - A : System Average Interrruption Frequency Index (SAIFI) for Urban
category |
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|
1st 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 |
Apr-09 |
6583884 |
1573788 |
4.18 |
|
|
| 2 |
May-09 |
5165069 |
1648230 |
3.13 |
|
|
| 3 |
Jun-09 |
2533948 |
1646814 |
1.54 |
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| SoP
011 - B : System Average Interrruption Duration Index (SAIDI) for Urban
category |
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|
1st 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 |
Apr-09 |
1549.73 |
3478 |
5389376.41 |
1573788 |
3.42 |
| 2 |
May-09 |
711.59 |
5089 |
3620908.06 |
1648230 |
2.20 |
| 3 |
Jun-09 |
604.88 |
4478 |
2708482.00 |
1646814 |
1.64 |
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| SoP
011 - C : Momentary Average Interruption Frequency Index (MAIFI) for Urban
category |
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|
1st 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 |
Apr-09 |
4048 |
4546 |
18402544 |
1573788 |
11.69 |
| 2 |
May-09 |
3078 |
5763 |
17739354 |
1648230 |
10.76 |
| 3 |
Jun-09 |
2778 |
4015 |
11154363 |
1646814 |
6.77 |
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