Since the Kyoto Protocol came into force in 2005, Europe is been pushed to turn itself into a green energy market. A lot of efforts had already been made, and a lot more is expected especially in the wind field. The plans of the wind industry to achieve the 20-20-20 program's targets include a 6 billion Euros investment to make offshore wind parks the most competitive energy source in Europe by 2030, when it's expected that this kind of energy will supply 33% of the EU's energy, and 50% by 2050. However, as only 1.5 GW of offshore WP was operating in 2008, there is still a lack of knowledge about the dynamic behavior of this kind of installations. The short distances involved in the collection grid, added to the multiple reflection points and possibility of constructive interference is suspected to be able to create overvoltages higher than the equipment's withstand levels. © 2011 IEEE. http://ec.europa.eu/climateaction/eu_action/index_en.htmThe European Wind Initiative, Wind Power Research and Development for the next Ten Years, , http://www.ewea.org/fileadmin/ewea_documents/documents/publications/EWI/ EWI_2010_final.pdf, The European Wind Energy AssociationThe European Offshore Wind Insudtry - Key Trends and Statistics: 1st Half 2010, , http://www.ewea.org/fileadmin/ewea_documents/documents/publications/ statistics/EWEA_OffshoreStatistics_2010.pdf, The European Wind Energy AssociationOffshore Wind Heads for Record Year, , http://www.ewea.org/index.php?id=60&no_cache=1&tx_ttnews[tt_news] =1865&tx_ttnews[backPid]=1&cHash=c0f89ca1cbe22ef183866d16d86d38a9, The European Wind Energy Association press room(2008) Communication from the Commission to the European Parliament, the Council, the European Economic and Social Committee and the Committee of the Regions - Offshore Wind Energy: Action Needed to Deliver on the Energy Policy Objectives for 2020 and Beyond, , http://eurlex.europa.eu/LexUriServ/LexUriServ.do?uri=COM:2008:0768:FIN: EN:PDF, Commission of the European Communities, Brussels, 13.11. available atEuropean Offshore Wind Map for 2009, , http://www.windeole.com/fileadmin/user_upload/Downloads/Offshore/ European_Offshore_Wind_Map_2009.pdf, The European Wind Energy Association (EWEA), available atSweet, W., Danish turbines take unfortunate turn (2004) Spectrum, 41 (11), pp. 30-34. , IEEE, NovGeneral Requirements for Liquid Immersed Distribution, Power and Regulating Transformers, , IEEE Standard. C57.12.00-2006General Requirements for Dry Type Ventilated Distribution, Power and Regulating Transformers, , IEEE Standard. C57.12.01-2005ABB XLPE Cable User's Guide, , www.abb.com, Technical documentation, available fromGreenwood, A., (1991) Electrical Transients in Power Systems, , John Wiley & Sons Ltd, Unites StatesVan Der Sluis, L., (2001) Transients in Power Systems, , John Wiley & Sons Ltd, Delft University of Technology, the NetherlandsSrivastava, K., Reza, M., (2009) Surge Mitigation Methods Comparison with PSCAD Model Calibrated to Wind Laboratory Circuit, , Technical Report, ABB Corporate ResearchAbdulahovic, T., Reza, M., (2009) Analysis of High-Frequency Electrical Transients in Cable Systems, , Technical Report, ABB Corporate ResearchReza, M., Breder, H., Cable System Transient Study, Vindforsk V-110. Experiments with switching transients and their mitigation in a windpower collection grid scale model (2009) Elforsk Report 09:05Boyra, M., (2007) Transient Overvoltage in Cable Systems, Part 2 - Experiments on Fast Transients in Cable Systems, , Master of Science Thesis, Chalmers University of Technology, Götenborg, SwedenBebre, S., Daniel, A., (2007) Analysis of Transients in Wind Parks: Modelling of System Components and Experimental Verification, , Master of Science Thesis, Chamlers University of Technology, Götenborg, SwedesGustavsen, B., Study of Transformer Resonant Overvoltages Caused by Cable-Transformer High-Frequency Interaction (2010) IEEE Transactions on Power Delivery, 25 (2). , April