Transend - Appendix 5 Renewal capital expenditure - Australian ...

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Table 3 - Summary of NPV cost analysis 0BInvestment Evaluation Summary TNM-GS-809-0720 Option Net present value of costs ($M June 2007) 1 Maintain the existing assets and defer replacement 2.45 2 Replacement of assets but defer duplication of protection schemes 2.92 3 Replacement of assets and duplicate 2.25 9. PREFERRED OPTION Option three is the preferred option because it addresses all of the identified investment drivers and performance issues at the lowest NPV cost. © <strong>Transend</strong> Networks Pty Ltd 10 of 10
INVESTMENT EVALUATION SUMMARY TITLE TRIM REFERENCE D09/3550 DATE JANUARY 2009 REVISION STATUS 2.0 TRANSEND CONTACT MARTIN O’BRYAN PROJECT NUMBER ND0914 0BInvestment Evaluation Summary TNM-GS-809-0720 SHEFFIELD–FARRELL 220 KV TRANSMISSION LINES: PROTECTION SCHEME REPLACEMENTS ATTACHMENT B2 © <strong>Transend</strong> Networks Pty Ltd 1 of 7
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APPENDIX 5 Transend, Renewal capita
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Renewal Capital Expenditure TNM-GR-
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Figure 4 - Overview of the Reyrolle
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Table 3 - Circuit criticality ratin
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Figure 6 - Capacitive voltage trans
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Current transformer make / type Mod
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1.6.5 Protection and control Renewa
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CONTENTS 0BInvestment Evaluation Su
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0BInvestment Evaluation Summary TNM
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5 CUSTOMER CONSULTATION 0BInvestmen
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� implementation of revised maint
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Table 1 - Summary of economic analy
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7.3 OPTION 3 - STAGED REPLACEMENT O
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4.8 BUS CONDUCTOR AND FITTINGS 0BIn
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6 BENEFITS The direct benefits of r
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7.2.3 DRAWBACKS The option has the
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Figure 2 - Option 3: single line di
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This option includes: � installin
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INVESTMENT EVALUATION SUMMARY 0BInv
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1 BACKGROUND 0BInvestment Evaluatio
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4.1 CIRCUIT BREAKERS 0BInvestment E
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� reduced burden on spare parts m
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Page 88 and 89: CONTENTS 0BInvestment Evaluation Su
Page 90 and 91: � replacement of the 110 kV Meado
Page 92 and 93: 0BInvestment Evaluation Summary TNM
Page 96 and 97: � reduced burden on spare parts m
Page 104 and 105: 4.2 VOLTAGE TRANSFORMERS The 110 kV
Page 106 and 107: 4.3 CURRENT TRANSFORMERS 0BInvestme
Page 110 and 111: The drawbacks for this option are t
Page 113 and 114: INVESTMENT EVALUATION SUMMARY 0BInv
Page 115 and 116: 1 BACKGROUND 0BInvestment Evaluatio
Page 119 and 120: 4.1.2 TUNGATINAH SUBSTATION 0BInves
Page 121 and 122: 4.3.2 TUNGATINAH SUBSTATION The 110
Page 123 and 124: Tarraleah-New Norfolk No. 1 110 kV
Page 125 and 126: � the possibility of a 220 kV con
Page 127: Table 2 - Summary of Transend’s c
Page 134 and 135: 3.2.2 110 KV BUS BAR PROTECTION SCH
Page 136 and 137: 5. CUSTOMER CONSULTATION 0BInvestme
Page 142 and 143: � loss of back-up protection func
Page 147 and 148: INVESTMENT EVALUATION SUMMARY TITLE
Page 153 and 154: INVESTMENT EVALUATION SUMMARY TITLE
Page 157 and 158: Burnie-Waratah 110 kV Transmission
Page 159 and 160: CONTENTS Burnie-Waratah 110 kV Tran
Page 161 and 162: 1 BACKGROUND Burnie-Waratah 110 kV
Page 163 and 164: 2.3 MAINTENANCE Burnie-Waratah 110
Page 165: Burnie-Waratah 110 kV Transmission
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