http___www.koncar.hr_offshore-transformatori-za-vjetroelektranu-na-sjevernom-moru__1.xml
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KONČAR – Power Transformers (KPT), a joint-venture of Siemens AG and KONČAR, has through an established business relationship with Siemens S.A. Spain concluded a contract with the Spanish utility Iberdrola for the delivery of two offshore transformers with the rated power of 400 MVA and the rated voltage of 245 kV to be installed in a wind power plant (WPP) East Anglia ONE, which is being built by ScottishPower Renewables in the United Kingdom (UK). Furthermore, KONČAR – Distribution and Special Transformers (D&ST) has produced four auxiliary grounding transformers with the power of 5500 kVA and the voltage of 66/0.4 kV for Iberdrola. The wind power plant is being built in the Norfolk County, in eastern England. It will be located in the North Sea, 43 kilometers off the coast of Suffolk, and is part of the UK’s plan to cover 15 percent of their energy needs from renewable sources by 2020. Contributing to this goal, this project, with a total of 714 MW of renewable wind energy produced by 102 wind turbines, will meet the needs of more than 500,000 households. The power plant is worth 2.5 billion pounds, and will start producing the first kilowatt hours in 2019. In addition to particularly rigorous requirements for corrosion protection due to the operating conditions of a transformer located at sea, another peculiarity of this contract is the fact that the platform will be assembled onshore, i.e. in a Spanish shipyard. Transformers will be placed in a closed transformer box, with an outside cooling system, and they will be completely assembled at the shipyard, then filled with oil and transported on the platform to their location at sea. Additional non-standard calculations were performed to ensure that the design of the transformers withstands possible stresses during sea transport.
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Društvo KONČAR – Energetski transformatori (KPT), joint-venture Siemensa i KONČARA, uz pomoć utvrđenog poslovnog odnosa sa tvrtkom Siemens S.A. Španjolska, ugovorilo je sa španjolskom energetskom tvrtkom Iberdrola dva offshore transformatora nazivne snage 400 MVA, nazivnog napona 245 kV, za vjetroelektranu (VE) East Anglia ONE koju gradi ScottishPower Renewables u Ujedinjenom Kraljevstvu (UK). Nadalje, društvo KONČAR – Distributivni i specijalni transformatori (D&ST), za Iberdrolu je proizvelo četiri pomoćna uzemljivačka transformatora snage 5500 kVA, naponske razine 66/0,4 kV. Vjetroelektrana se gradi u okrugu Norfolk, u istočnoj Engleskoj, u Sjevernom moru, 43 kilometra od obale Suffolka, i dio je plana UK-a da do 2020. godine 15 posto svojih energetskih potreba pokriva iz obnovljivih izvora. Pridonoseći tom cilju, ovaj projekt s ukupno 714 MW obnovljivih izvora vjetra od 102 vjetroagregata zadovoljit će potrebe više od 500.000 domova. Elektrana vrijedna 2,5 milijarde funti, prve će kilovatsate početi proizvoditi 2019. godine. Uz posebno rigorozne zahtjeve za antikorozivnu zaštitu zbog uvjeta rada transformatora na moru, specifičnost ovog ugovora je da će se platforma montirati onshore, odnosno na kopnu u brodogradilištu Španjolskoj. Transformatori će biti smješteni u zatvorenom transformatorskom boksu, a rashladni sustav izvan njega te kompletno montirani u brodogradilištu, napunjeni uljem te će se na platformi transportirani do pozicije na moru. Izrađeni su i dodatni nestandardni proračuni kako bi se transformatori dimenzionirali za moguća naprezanja tijekom pomorskog transporta.