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New Zealand Gazette – 1996 – No. 90

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✨ Reliability Performance Measures

NEW ZEALAND GAZETTE

No. 90

Reliability Performance Measures

1996 | 1995

Interruptions (excluding interruptions caused by operation of 11kV transformer fuses and affecting only up to 3 customers)

	1996	1995
A. TransPower - Planned Shutdowns	0	0
B. Electricity Distributor - Planned Shutdowns	350	290
C. Electricity Distributor - Unplanned Cuts	369	300
D. TransPower - Unplanned Cuts	12	4
E. ECNZ Generator - Unplanned Cuts	0	0
F. Other Distributor or Generator - Unplanned Cuts	0	0
G. Other Distributor or Generator - Planned Shutdowns	0	0

Total all interruptions | 731 | 594 |

Total faults per 100 kilometres: 14.4 | 12.1 |
Underground faults per 100km

Voltage	1996	1995
33kV	0	0
11kV	4.8	33.3

Total all voltages: | 4.8 | 33.3 |

Overhead faults per 100km

Voltage	1996	1995
33kV	16.7	9.8
11kV	15.0	12.3

Total all voltages: | 14.5 | 12.1 |

System performance indices:

1996

Class	SAIDI (As in 1. above) (System Average Interruption Duration Index)	SAIFI (System Average Interruption Frequency Index)	CAIDI (Customer Average Interruption Duration Index)
A.	0	0	-
B.	331.05	1.68	196.73
C.	370.15	9.08	40.76
D.	13.71	0.27	51.37
E.	0	0	-
F.	0	0	-
G.	0	0	-
Total	714.92	11.03	64.81

1995

Class	SAIDI (As in 1. above) (System Average Interruption Duration Index)	SAIFI (System Average Interruption Frequency Index)	CAIDI (Customer Average Interruption Duration Index)
A.	0	0	-
B.	398.7	1.52	262.33
C.	468.8	7.59	61.77
D.	18.8	0.47	40.04
E.	0	0	-
F.	0	0	-
G.	0	0	-
Total	886.4	9.59	92.43

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VUW Te Waharoa — NZ Gazette 1996, No 90

NZLII — NZ Gazette 1996, No 90

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✨ LLM interpretation of page content

🏭 Energy Efficiency Performance Measures and Statistics (continued from previous page)

Domain🏭 Trade, Customs & Industry
Dated23 August 1996
KeywordsEnergy efficiency, performance measures, statistics, electricity delivery, system length, circuit length, transformer capacity, maximum demand, electricity supply, customers

🏭 Reliability Performance Measures

Domain🏭 Trade, Customs & Industry
KeywordsReliability, performance measures, interruptions, faults, system performance indices, electricity distribution

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