Contact Us English PRESENTATION EXERCISE PROJECTS ETHICS AND INTEGRITY PRESS ROOM Overhead contact line All types of catenary Catenaries Substations Installations PUBLICATIONS PHOTO LIBRARY INTEGRATED ANNUAL REPORT PRESENTATION EXERCISE PROJECTS ETHICS AND INTEGRITY PRESS ROOM EyM Instalaciones, SA C / Arturo Soria 343, 28033 Madrid Legal warning Accessibility Cookies policy Web map

Contact Us English PRESENTATION EXERCISE PROJECTS ETHICS AND INTEGRITY PRESS ROOM Home > Projects > Marmaray Project. Istanbul. Turkey AVE Mecca - Medina. Saudi Arabia Marmaray Project. Istanbul. Turkey Line 3 of the Guadalajara Light Train. Mexico La Aldea-El Risco road tunnel. Spain Villoria pumping station. Spain Modernization of the power plant at El Prat Airport. Spain Marmaray Project. Istanbul. Turkey Project: ELECTRIFICATION OF THE MARMARAY PROJECT IN ISTANBUL (TURKEY) Customer: JV OHL-SIEMENS Starting year: 2012 Ending year: 2018 The Marmaray Project consists of the connection of the railway networks of the city of Istanbul, European and Asian part, through the construction of an underwater tunnel that crosses the Bosphorus Strait. The project begins on the European side, in Halkali, crossing the Bosphorus and ends on the Asian side, in Gebze. Its total length is 76 km, of which 63 km run on the surface with three tracks and the rest, 13 km, under a two-track tunnel. To supply catenary power, six traction substations (154 kV / 1x27.5 kV ac) are built along the route: Halkali with a power of 2x21 MVA, Veliefendi with a power of 2x34 MVA, Ibrahimaga with a power of 2x33 MVA, Idealtepe with a power of 2x27 MVA, Pendik with a power of 2x27 MVA and Osmangasy with a power of 2x20 MVA. Furthermore, to guarantee supply during the construction phase, another temporary substation with a power of 2x7 MVA has been installed. EyM has been responsible for the design of OCS (catenary), as well as its supply, assembly, testing and commissioning (EPC). In the project there are two types of catenary: Rigid catenary: 26 km for the tunnel (two tracks) Flexible catenary: in the sections that run on the surface (three tracks) In addition, EyM has supplied, installed and put into service a generator set plant to feed the tunnel catenary in the event of a power failure from the electricity company in order to evacuate the trains that are currently inside the tunnel to the nearest stations. It is a plant with an installed power of 5 MVA, which generates three-phase alternating current and feeds the catenary at 1x25 kV. 1 2 3 4 PRESENTATION EXERCISE PROJECTS ETHICS AND INTEGRITY PRESS ROOM EyM Instalaciones, SA C / Arturo Soria 343, 28033 Madrid Legal warning Accessibility Cookies policy Web map

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