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| SoP
011 - A : System Average Interrruption Frequency Index (SAIFI) for Industrial
category |
|
|
4th Quarter |
Year - 2008-09 |
|
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-08 |
26989 |
31843 |
1 |
|
| 2 |
May-08 |
53612 |
39903 |
1 |
|
| 3 |
Jun-08 |
48183 |
40021 |
1 |
|
|
| SoP
011 - B : System Average Interrruption Duration Index (SAIDI) for Industrial
category |
|
|
4th Quarter |
Year - 2008-09 |
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-08 |
132.14 |
235 |
31096.9 |
31843 |
0.98 |
| 2 |
May-08 |
157.27 |
412 |
64788.9 |
39903 |
1.62 |
| 3 |
Jun-08 |
260.71 |
200 |
52256.5 |
40021 |
1.31 |
|
| SoP
011 - C : Momentary Average Interruption Frequency Index (MAIFI) for
Industrial category |
|
4th Quarter |
Year - 2008-09 |
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-08 |
665 |
209 |
138802 |
31843 |
4 |
| 2 |
May-08 |
633 |
298 |
188587 |
39903 |
5 |
| 3 |
Jun-08 |
891 |
301 |
268243 |
40021 |
7 |
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