| 词条 | Cometa (HVDC) |
| 释义 |
| name = Cometa | photo = | caption = | map = | map_caption = Location of Cometa | country = Spain | state = | province = | coordinates = | lat = | long = | direction = | start = Morvedre {{coord|39|38|28|N|0|14|7|W|type:landmark|name=Cometa - Morvedre HVDC Static Inverter}} | through = | finish = Santa Ponsa {{coord|39|32|2|N|2|30|21|E|type:landmark|name=Cometa - Santa Ponsa HVDC Static Inverter}} | par = | owner = Red Eléctrica de España | partners = | operator = | cable_manufacturer= Prysmian Nexans | cable_installer= Prysmian Nexans | cable_layer = C/S Giulio Verne C/S Nexans Skagerrak | substation_manufacturer= Siemens | substation_installer= | contractors = Trenching: {{ubl|MPSV Edda Fjord|C/S Argo 1}} | construction= | expected = | est = Aug 2012 | decom = | type = submarine cable | current_type= HVDC | length_km = 247 | capacity = 400 MW | AC_voltage = 230 kV | DC_voltage = 250 kV | poles_no = 2 | circuits_no = }} COMETA (abbreviation for COnexión MEditerránea Transporte Alta tensión; also known as the Majorca–Valencia interconnector and the Romulus project) is an undersea electric power transmission system between mainland Spain and the island of Majorca. It connects Morvedre near Valencia and Santa Ponsa near Palma de Mallorca. The project was developed by Red Electrica de España. The project aims were to connect the Baleric Islands with the Spanish peninsular grid, providing a better electrical supply to the two isolated Balearic grids. HistoryOn 26 September 2007, contracts between Red Electrica de España and the cable manufacturers Nexans and Prysmian were signed.[1][2] On 9 October 2007, a contract with Siemens was signed for supplying two converter stations.[2] The laying of the first cable started on 13 January 2011 and the laying of the second cable started on 27 January 2011. The first cable was laid by the cable ship Giulio Verne and the second cable was laid by the cable ship Nexans Skagerrak.[4] Trenching was done by waterjet from the Multipurpose Supply Vessel (MPSV) Edda Fjord and dredger Argo I. COMETA became operational in early 2012, initially at reduced capacity then fully from August 2012. The total cost of the project was €375 million.[4] During the first operational quarter, the Spanish grid operator estimated that the connection would mean 25 million €/year in savings, due to more efficient supply to the islands and less carbon rights. It is planned to extend the connection to Ibiza and Formentera with a second underwater cable, (115 km) long and 800 m deep, operating at 132 kV AC. Technical descriptionThe cable was produced and laid by Prysmian Group and Nexans SA.[3] The system consists of two bipolar high-voltage direct current (HVDC) cables with a transmission capacity of 200 MW and an operating voltage of 250 kV of each, and a metal return cable. It has a total transmission capacity of 400 MW. The maximum depth of the submarine cable is {{convert|1485|m}}. It is the second longest submarine power cable after NorNed and the second deepest after SAPEI.[3] The submarine part of the cable is {{convert|240|km|mi|0}} long and the land cable is {{convert|7|km|mi|0}} long.[4] There are converter stations in Morvedre and Santa Ponsa, built by Siemens. References1. ^{{cite press release | url = http://www.nexans.com/eservice/Corporate-en/navigatepub_142507_-12311/Nexans_wins_146_million_euros_order_for_high_volta.html | title = Nexans wins 146 million euros order for high voltage submarine link between Spanish mainland and Balearic Islands | publisher = Nexans | date = 2007-09-26 | accessdate = 2011-01-30}} 2. ^{{cite press release | url = http://www.energy.siemens.com/us/pool/hq/power-transmission/HVDC/HVDC-Classic/pm-pdf/pm-1-COMETA.pdf | title = Siemens connects Majorca to power grid on the Spanish mainland | publisher = Siemens | format = PDF | date = 2007-10-09 | accessdate = 2011-01-30}} 3. ^1 2 3 {{cite news | url = http://www.powergenworldwide.com/index/display/articledisplay/1540470699/articles/powergenworldwide/t-and-d/t-and-d-infrastructure/2011/01/nexans-starts_majorca-valencia.html | title = Nexans starts Majorca-Valencia interconnector submarine cable laying | work = Power-Gen Worldwide | publisher = PennWell Corporation | date = 2011-01-28 | accessdate = 2011-01-30}} 4. ^1 {{cite news | url = http://tdworld.com/underground_transmission_distribution/prysmian_build_hvdc/ | title = Prysmian to Build HVDC Submarine Link for Spain's REE | publisher = Penton Media, Inc. | work = Transmission & Distribution World | date = 2007-10-01 | accessdate = 2011-01-30}} External links
2 : Electric power infrastructure in Spain|HVDC transmission lines |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。