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New Offshore Construction Vessel For Toisa Ltd. Powered By Siemens

New Offshore Construction Vessel For Toisa Ltd. Powered By Siemens


New offshore construction vessel for Toisa Ltd. powered by Siemens – Mar 13, 2014– Nuremberg Germany (Techreleased) – On behalf of Hyundai Heavy Industries Ltd. (HHI), the largest shipyard in the world located in Ulsan, South Korea, the Siemens Drive Technologies Division is supplying an integrated drive and power generation solution for a multipurpose offshore construction […]

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Posted On March 13, 2014
Toisa offshore construction vessel

New offshore construction vessel for Toisa Ltd. powered by Siemens – Mar 13, 2014– Nuremberg Germany (Techreleased) – On behalf of Hyundai Heavy Industries Ltd. (HHI), the largest shipyard in the world located in Ulsan, South Korea, the Siemens Drive Technologies Division is supplying an integrated drive and power generation solution for a multipurpose offshore construction vessel (MOCV). This MOCV is currently being built by HHI for Toisa Ltd. and will be managed by Sealion Shipping Ltd, a global shipping and support services company. It is to be used to perform a variety of offshore duties including underwater installations to a maximum depth of 3,500 meters. The integrated Siship solutions from Siemens help to improve the reliability and flexibility of the vessel and to reduce its fuel consumption and therefore the overall running costs.

Toisa offshore construction vessel

With this new offshore construction vessel, Toisa will set new standards in terms of flexibility and capacity. For example, the vessel is designed for a wide range of offshore duties, including ultra-deepwater installations and constructions for the oil and gas industry, the laying of undersea pipes and cables or the control of remotely operated vehicles (ROV). Consequently, the demands on the flexibility, efficiency and reliability of the vessel are very high. For this reason, Siemens is providing integrated solutions both for marine propulsion (Siship Drive LV) as well as for on-board power generation (Siship Power MV). Siship Drive LV is a diesel-electric drive solution featuring components that are optimally tailored to the design of the vessel.

For example, the azimuth thrusters, the retractable thrusters and the bow thruster are powered by five 3.4 megawatt and two 2.5 megawatt motors combined with seven marine-type Siship frequency converters. The converters are specially designed for harsh operating conditions in terms of the temperatures, vibrations and humidity levels prevalent on offshore vessels. The optimum interaction of motors and converters contributes to a rapid reaction capability of the different drives, thus increasing the flexibility of the vessel and enabling precise maneuvering. Thanks to the integrated drive system, a high level of motor performance and, consequently, a high degree of efficiency are achieved.

The on-board power supply system is fed by six diesel generators, each with an output of four megawatts. As the generator output is continuously adapted to the actual energy demand, a significant reduction in fuel consumption is achieved, especially considering the fluctuating operation profile of a multipurpose offshore construction vessel. The power management system also supplied by Siemens ensures a stable generation of electricity so that the necessary power can be made available everywhere and anytime. As additional safety solutions, power protection functions are integrated in the switchgear. They detect critical operating states and protect or isolate the relevant generator from the supply system before any damage can occur. The power management system also enables electrical power generation to be resumed automatically after any failures. The main switch panels for the primary distribution network also originate from Siemens.

In addition to delivering the drive and power generation system, Siemens is also responsible for the project management, the engineering and the commissioning of the entire diesel-electric drive system. All systems and components used are part of the Siemens “Siship” solution platform.

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