Reliability Performance Measures




NEW ZEALAND GAZETTE

No. 127

DUNEDIN ELECTRICITY LTD

RELIABILITY PERFORMANCE MEASURES

PURSUANT TO REGULATION 16 ELECTRICITY (INFORMATION DISCLOSURE) REGULATIONS 1994

Reliability Statistics Required for the Year Ended 31 March 1995

Connected Customers Line 33kV Line 11kV Line 6.6kV Cable 33kV Cable 11kV Cable 6.6kV Total Density Cust/km
At start of period 49,050 149.9 233.9 482.5 75.2 19.7 226.5 1,188 41.3
At end of period 49,730 149.9 235.8 485.0 75.2 20.2 228.7 1,195 41.6
Average 49,390 149.9 234.8 483.8 75.2 19.9 227.6 1,191 41.5
Average line/cable 868.5 322.8
Disclosure Regulations SAIDI Cust Mins SAIDI Mins/Cust SAIFI Cust Int SAIFI Int/Cust CAIDI Mins/Int No Interruptions Class
Distributor Planned 203,767 4.13 2,925 0.06 69.70 27 B
Distributor Unplanned 1,119,964 22.68 32,753 0.66 34.20 95 C
Subtotal 1,323,731 26.80 35,678 0.72 37.10 122
Trans Power Planned A
Trans Power Unplanned 531,031 10.75 38,436 0.78 13.80 3 D
Subtotal 531,031 10.75 38,436 0.78 13.80 3
ECNZ Planned E
ECNZ Unplanned
Subtotal
Other Gen Planned F
Other Gen Unplanned
Other Than Above G
Subtotal
TOTAL 1,854,762 37.55 74,114 1.50 25.00 125

Unplanned Faults by Voltage

Lines Faults Lines Length km OH per 100 km Cables Faults UG Length km UG per 100 km
33kV 7 149.9 4.7 1 75.2 1.3
11kV 33 234.8 14.1 2 19.9 10.0
6.6kV 38 483.8 7.9 6 227.6 2.6
TOTAL 78 868.5 9.0 9 322.8 2.8
Total Faults Total Length in km No Faults per 100 km
Total Lines and Cables 87 1,191 7.3


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Reliability Statistics, Electricity, Performance Measures, Dunedin Electricity Ltd