New Zealand Gazette – 1998 – No. 105

Page 2571

✨ Electricity Network Reliability Statistics



4 AUGUST

NEW ZEALAND GAZETTE

6 Reliability Performance Measures

Number of Interruptions 1998 1997 1996 1995
A Planned Transpower 0 0 0 0
B Planned Distributor 27 56 21 57
C Unplanned Distributor 139 88 68 117
D Unplanned Transpower 0 0 1 0
E Unplanned ECNZ 0 0 0 0
F Unplanned Generator 0 0 0 0
G Unplanned Other 0 0 0 0
Total 166 144 90 174

Total Number of Faults per 100km of HV System | 8.33 | 8.69 | 5.46 | 10.58 |

| Total Number of Faults per 100km of Underground HV Circuit | | | | |
|----------------------------------------------------------------|------|
| 33kV | 0.00 | 0.00 | 0.00 | 0.14 |
| 11kV | 10.31| 10.25| 11.50| 35.63|
| Total | 10.15| 10.10| 11.32| 35.32|

| Total Number of Faults per 100km of Overhead HV Circuit | | | | |
|-----------------------------------------------------------|------|
| 33kV | 4.35 | 0.00 | 1.45 | 0.72 |
| 11kV | 8.68 | 5.74 | 5.76 | 11.22|
| Total | 8.31 | 5.25 | 5.40 | 10.33|

SAIDI

Total Interruptions 1998 1997 1996 1995
Total Interruptions 87.41 103.58 90.74 127.50
A Planned Transpower 0.00 0.00 0.00 0.00
B Planned Distributor 14.84 49.94 27.93 73.56
C Unplanned Distributor 72.57 53.64 61.11 53.94
D Unplanned Transpower 0.00 0.00 1.69 0.00
E Unplanned ECNZ 0.00 0.00 0.00 0.00
F Unplanned Generator 0.00 0.00 0.00 0.00
G Unplanned Other 0.00 0.00 0.00 0.00

SAIFI

Total Interruptions 1998 1997 1996 1995
Total Interruptions 1.45 0.93 1.19 0.92
A Planned Transpower 0.00 0.00 0.00 0.00
B Planned Distributor 0.13 0.31 0.20 0.52
C Unplanned Distributor 1.32 0.62 0.85 0.40
D Unplanned Transpower 0.00 0.00 0.14 0.00
E Unplanned ECNZ 0.00 0.00 0.00 0.00
F Unplanned Generator 0.00 0.00 0.00 0.00
G Unplanned Other 0.00 0.00 0.00 0.00

CAIDI

Total Interruptions 1998 1997 1996 1995
Total Interruptions 60.32 110.90 76.05 138.05
A Planned Transpower 0.00 0.00 0.00 0.00
B Planned Distributor 115.46 160.16 138.10 141.11
C Unplanned Distributor 54.96 86.22 71.90 134.10
D Unplanned Transpower 0.00 0.00 12.00 0.00
E Unplanned ECNZ 0.00 0.00 0.00 0.00
F Unplanned Generator 0.00 0.00 0.00 0.00
G Unplanned Other 0.00 0.00 0.00 0.00


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✨ LLM interpretation of page content

🏭 Network Statistics for Waitaki Power Limited (continued from previous page)

🏭 Trade, Customs & Industry
Network Statistics, System Length, Overhead Circuit, Underground Circuit, Transformer Capacity, Maximum Demand, Electricity Supplied, Customers, Reliability Performance, Interruptions, Faults, SAIDI, SAIFI, CAIDI