special projects for power transmission special projects.pdf · special projects for power...
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Head Quarters/ Registered Office:
Viale T.Edison, 50 20099 - Sesto San Giovanni (MI) - Italy Website: saepowerlines.com
Special Projects for
Power Transmission
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Special Projects
Messina Strait Crossing 380 kV Double Circuit Line
• Country: Italy
• Scope of work: Engineering, supply, erection and supervision
• Customer: ENEL - Italy
• Year: 1955
• Voltage: 220 kV
• Number of circuits: 2
• Crossing Span: 3.416 m
• Height of Suspension Towers: 215 m
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Special Projects
Pearl River Crossing 500 kV Double Circuit Line
• Country: China
• Scope of work: Engineering, supply, erection and supervision
• Customer: Guangdong General Power Company, China
• Year: 1986-1988
• Scope: EPC construction of 100 km of OHTL Sha Jiao-Jang Men, including Substations and Pearl River crossing
• Voltage: 500 kV
• Number of circuits: 2
• Transmission Capacity: 1600 MW (per circuit)
• Crossing Spans: 931 + 1547 m
• Height of Suspension Towers: 238 m
• Water Clearance: 70 m
• Weight of one Suspension Tower: 1,040 ton
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Yangtze River Crossing 500 kV Double Circuit Line
• Country: China
• Scope of work: Turn key contract
• Customer: East China Electric Power Administration
• Year: 1987-1988
• Voltage: 500 kV
• Number of Circuits: 2
• Transmission Capacity: 2,250 MW (per circuit)
• Crossing Span: 1,820 m
• Height of Suspension Towers: 180 m
• Water Clearance: 48 m
• Weight of one Suspension Tower: 540 ton
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1050 kV Experimental Project Suvereto – Casl Valdicciola
• Country: Italy
• Voltage: 1,050 kV
• Line length: 3 km
• Conductor: 8 conductors bundle
• Towers: Chainette guyed towers
• Scope of Work: EPC contract for OHTL
• Customer: ENEL - Italy
• Year: 1988-1990
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Geshm Strait Crossing 230 kV Double Circuit Line
• Country: Iran
• Voltage: 230 kV
• Crossing Span: 1,585 + 1,015 m
• Foundation: pre-fabricated concrete sea-submersed
• Scope of Work: Turn key contract
• Customer: K.R.E.C.O - Iran
• Year: 1989-1993
Special Projects
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South Bangkok – Bangkok Noi 230 kV double circuit
• Country: Thailand
• Voltage: 230 kV
• Line length: 28 km
• Scope of Work: EPC contract for OHTL
• Customer: EGAT - Thailand
• Year: 1990-1991
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Leyte - Luzon HVDC Project ±350 kV Bipolar HVDC TL
• Country: Philippines
• Voltage: ± 350 kV Direct Current
• Line length: 435 km + 37 km of electrode lines
• Conductor: triple bundle ACSR Martin
• Power transmission: 2x400 MW
• Scope of Work: EPC contract for OHTL including two sea crossings, one overhead and one with a submarine cable.
• Customer: NPC - Philippines
• Year: 1994-1998
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Panama Crossing
230 kV Double Circuit Line
• Country: Panama
• Voltage: 230 kV
• Crossing Span: 1,149 m
• Conductor: ACSR 750 MCM
• Scope of Work: New Panama Channel Crossing
• Water clearance: 105 m
• Towers height: 146 m
• Customer: PC - Panama
• Year: 1998
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Pidiregas 407
400 kV Double Circuit Line
• Country: Mexico
• Voltage: 400 kV
• Line Length: 122 km
• Scope of Work: EPC contract for 400 kV Transmission Line from San Luis de Potosì to Anahuac, plus a 400 kV S/S in Potosì
• Customer: Commission Federal de Electricidad (CFE)
• Years: 2001 - 2003
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Pidiregas 409
400 kV Double Circuit Line
• Country: Mexico
• Voltage: 400 kV
• Line Length: 140 km, including several large crossings
• Project: Manuel Moreno Torres - Juile
• Crossings: Different crossings for a total of 4,500 m in length. The bigger refers to the Ranita isle made by three towers 164, 137, 167 m height and crossing spans of 1,631 m and 1,408 m
• Customer: Commission Federal de Electricidad (CFE)
• Years: 2002 - 2004
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Okpai 450 MW Power Plant
330 kV Double Circuit Line
• Country: Nigeria
• Voltage: 330 kV
• Line length: 56 km
• Scope of Work: Double Circuit Transmission Line and Substations, including Niger River Crossing 800 m span, with towers 109 m height
• Customer: Nigerian Agip Oil Company (NAOC)
• Years: 2002 - 2005
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Innovation
New optimized Cold-formed Sections from steel coils
• Low weight
• Reduced number of members
• Freedom in Tower design (triangular sect.)
Save in material, transport,
erection costs
Environmental Low impact
Cold Formed Technology for
Power Transmission Lines
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Innovation
HV Compact Lines
Voltage range up to 400 kV
Environmental advantages:
• Reduction of land occupation
• Reduction of visual impact
• Reduction of right of way
• Reduction of costs
• Reduction of electrical and magnetic fields
380 kV TL Dimension comparison