New Zealand Gazette – 1996 – No. 114

Page 2901

✨ Energy Reliability Statistics

10 SEPTEMBER

NEW ZEALAND GAZETTE

WESTPOWER LIMITED

SYSTEM RELIABILITY

Disclosure by line owners of reliability performance measures as required by Regulation 16 of the Electricity (Information Disclosure) Regulations 1994

Part IV 1. of the first schedule
Total number of interruptions, together with a breakdown of that total according to interruption class

	Year ended 31-Mar-95	Year ended 31-Mar-96
Class A - Planned interruptions caused by Trans Power	0	0
Class B - Planned interruptions by Westpower	98	71
Class C - Unplanned interruptions by Westpower	220	135
Class D - Unplanned interruptions caused by Trans Power	10	6
Class E - Unplanned interruptions caused by ECNZ generation	0	0
Class F - Unplanned interruptions caused by Westpower generation	8	10
Class G - Other interruptions (Planned Westpower generation)	0	0
Total interruptions	336	222

Part IV 2. of the first schedule
The total number of faults per 100 circuit kilometres of prescribed voltage electric line (Voltage equal to or greater than 3.3 kilovolts)

Total faults per 100 km
| | 12.51 | 8.50 |

Part IV 3. of the first schedule
Total number of faults per 100 kilometres of underground prescribed voltage electric line

Nominal Line Voltage	Year ended 31-Mar-95	Year ended 31-Mar-96
66kv / 50kv	0.00	0.00
33kv	0.00	0.00
11kV	17.72	18.18
Total faults per 100 km	17.53	17.97

Part IV 4. of the first schedule
Total number of faults per 100 kilometres of overhead prescribed voltage electric line

	Year ended 31-Mar-95	Year ended 31-Mar-96
66kv / 50kv	16.83	25.21
33kv	8.37	7.09
11kv	12.65	8.21
Total faults per 100 km	12.42	8.34

Part IV 5. of the first schedule
The SAIDI for the total number of interruptions

| | 646.70 | 835.42 |

Part IV 6. of the first schedule
The SAIDI for the total number of interruptions within each interruption class

	Year ended 31-Mar-95	Year ended 31-Mar-96
Class A - Planned interruptions caused by Trans Power	0.00	0.00
Class B - Planned interruptions by Westpower	256.11	287.20
Class C - Unplanned interruptions by Westpower	243.80	384.06
Class D - Unplanned interruptions caused by Trans Power	137.46	135.74
Class E - Unplanned interruptions caused by ECNZ generation	0.00	0.00
Class F - Unplanned interruptions caused by Westpower generation	9.33	28.43
Class G - Other interruptions (Planned Westpower generation)	0.00	0.00

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VUW Te Waharoa — NZ Gazette 1996, No 114

NZLII — NZ Gazette 1996, No 114

Parliament House (depicted) was completed in 1918 and remains the primary seat of Parliament.

✨ LLM interpretation of page content

🏗️ Westpower Limited System Reliability (continued from previous page)

Domain🏗️ Infrastructure & Public Works
KeywordsReliability Performance, Electricity, Statistics, Westpower Limited

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