✨ Power Reliability Statistics




1 SEPTEMBER NEW ZEALAND GAZETTE 2745

                                                  POWER NEW ZEALAND LIMITED

Part IV. Reliability Performance Measures (continued)

Refer table below for the following performance measures:

2 Total faults per 100 kms electric line
3 Total faults per 100 kms electric line - underground
4 Total faults per 100 kms electric line - overhead

Line Voltage (2) Total (3) Underground (4) Overhead
100kV 0.000 0.000 0.000
66kV 0.044 0.000 0.044
33kV 0.090 0.029 0.097
11kV 0.244 0.084 0.273
Total 0.226 0.080 0.250

Refer table below for the following performance measures:

5 System Average Interruption Duration Index (SAIDI) - total interruptions
6 " - by interruption class
7 System Average Interruption Frequency Index (SAIFI) - total interruptions
8 " - by interruption class
9 Customer Average Interruption Duration Index (CAIDI) - total interruptions
10 " - by interruption class

Breakdown of Statistics by Interruption Class

Class Type of Interruption (6) SAIDI (Minutes) (8) SAIFI (Interruptions) (10) CAIDI (Minutes)
A Planned - Transpower 62 0.17 354
B Planned - Line Owner 44 0.30 150
C Unplanned - Line Owner 154 4.25 36
D Unplanned - Transpower 49 0.34 143
E Unplanned - ECNZ 0 0.00 0
F Unplanned - Other 0 0.00 0
G Any Other Interruption 0 0.00 0
Total All Interruptions 309 5.06 60
Reference (5) (7) (9)


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✨ LLM interpretation of page content

πŸ’° Performance Measures and Statistics for the Year Ending 31 March 1995 (continued from previous page)

πŸ’° Finance & Revenue
Financial Performance, Efficiency Measures, Energy Delivery, Accounting Returns, Depreciation, Net Profit, Shareholders Funds, Line Costs, Load Factor, Loss Ratio, Capacity Utilisation