| SoP 011 - A : System Average Interrruption Frequency Index (SAIFI), System Average Interrruption Duration Index (SAIDI), Momentary Average Interruption Frequency Index (MAIFI) | ||||||||||
| Qtr. | Month | Category of feeder | SAIFI | SAIDI | MAIFI | |||||
| 3 | OCT-14 | total | 8.77 | 13:03 | 13.61 | |||||
| ag dom | 19.89 | 38:54 | 24.23 | |||||||
| ind | 4.31 | 4:57 | 5.79 | |||||||
| urban | 4.65 | 5:05 | 7.11 | |||||||
| jgy | 8.71 | 11:04 | 16.48 | |||||||
| NOV-14 | total | 7.41 | 12:21 | 11.85 | ||||||
| agom | 15.48 | 30:48 | 20.60 | |||||||
| ind | 4.22 | 6:32 | 5.75 | |||||||
| urban | 4.29 | 7:09 | 6.27 | |||||||
| jgy | 7.48 | 10:21 | 14.44 | |||||||
| DEC-14 | total | 5.48 | 9:53 | 7.80 | ||||||
| agom | 10.76 | 22:37 | 12.83 | |||||||
| ind | 3.23 | 5:39 | 3.58 | |||||||
| urban | 3.22 | 5:40 | 4.86 | |||||||
| jgy | 5.79 | 9:11 | 9.01 | |||||||
| Sr. No |
Month | Ni - Number of Customers for each sustained interruptions (in numbers) | NT - Total No of
customers served (in Numbers) |
CI=∑ Ni | SAIFI = ∑
Ni/Nt (Monthly SAIFI) |
|||||
| 1 | Oct-14 | 4015446.00 | 4496486 | 39444486.00 | 8.77 | |||||
| 2 | Nov-14 | 4072770.00 | 4499114 | 33334953.00 | 7.41 | |||||
| 3 | Dec-14 | 3919077.00 | 4500165 | 24679437.00 | 5.48 | |||||
| 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) |
NT - Total No of
customers served (in Numbers) |
Customer Intt. Duration CMI = ΣRi*Ni | SAIDI = ΣRi*Ni/Nt (Monthly SAIDI) | ||||
| 1 | Oct-14 | 1:57 | 4015446.00 | 4496486.00 | 58725901.20 | 783.37 | 13:03 | |||
| 2 | Nov-14 | 2:00 | 4072770.00 | 4499114.00 | 55626440.87 | 741.5 | 12:21 | |||
| 3 | Dec-14 | 2:09 | 3919077.00 | 4500165.00 | 44493363.38 | 593.13 | 9:53 | |||
| Sr. No |
Month | IMi = Number of Momentary interruptions for the month (in numbers) |
Nmi = Total no of customers for each momentary interruptions (in numbers) |
Nt - Total no of customers served (in numbers) |
Customer Intt. ΣImi*Nmi | MAIFI=ΣImi*Nmi/Nt | ||||
| 1 | Oct-14 | 75531.00 | 3970857.00 | 4496486.00 | 61187520.00 | 13.61 | ||||
| 2 | Nov-14 | 65765.00 | 3983261.00 | 4499114.00 | 53302254.00 | 11.85 | ||||
| 3 | Dec-14 | 40489.00 | 3834772.00 | 4500165.00 | 35105125.00 | 7.80 | ||||
| Sr. No |
Month | IMi = Number of Momentary interruptions for the month (in numbers) |
Nmi = Total no of customers for each momentary interruptions (in numbers) |
Nt - Total no of customers served (in numbers) |
Customer Intt. ΣImi*Nmi | MAIFI=ΣImi*Nmi/Nt | ||||
| 1 | Oct-14 | 75531.00 | 3970857.00 | 4496486.00 | 61187520.00 | 13.61 | ||||
| 2 | Nov-14 | 65765.00 | 3983261.00 | 4499114.00 | 53302254.00 | 11.85 | ||||
| 3 | Dec-14 | 40489.00 | 3834772.00 | 4500165.00 | 35105125.00 | 7.80 | ||||