Offshore Holland

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Pipelay trialtrip of the Seven Oceans of Subsea 7.

Shorter lines of communication and the presence of Chinese staff will contribute significantly to increased customer satisfaction. Given the lightning pace of developments in China, and the number of orders won by Bakker Sliedrecht in that country, an agreement has now also been established with IHC Parts & Services for the provision of combined training for four service operators originally from China, whose role will be to commission and maintain electrical systems on board dredging vessels. Projects

As already stated, Bakker Sliedrecht produces complete turnkey installations for a huge variety of offshore projects, from initial consultancy through to commissioning, at any location, anywhere in the world. As well as new building, one of the company’s specialisations is the modernisation of existing installations. By gearing the latest technology to the specific operating situation, the system integrators at Bakker Sliedrecht are often able to achieve

major capacity and quality improvements. On behalf of Subsea 7, the company recently supplied the complete electrical installation and systems on board the Seven Oceans, the Seven Seas, the Seven Atlantic and the Seven Pacific. All four vessels are fully Dynamically Positioned (DP 2/3). All are equipped with a 6.6 kV integrated redundant electric power generation system for 21,600 kVA, 6x 3,600 lVA, em power of 1,875 kVA and an electrical propulsion system consisting of 3x 2,950 kW fixed pitch propellers in aft-mounted azimuth nozzles. Two 2,400 kW retractable azimuth thrusters are fitted in the forward section of the vessels, while one 2,200 kW transverse thruster is mounted in a forward tunnel. The latest showpiece from Bakker Sliedrecht is the crane vessel Oleg Strashnov operated by Seaway Heavy Lifting. With lift heights of up to 100 m for the 5,000 mt main hook and 132 m for the 800 mt auxiliary hook, this state-of-the-art crane vessel is able to undertake an impressive range of projects from the

Diesel electric driven Chinese cutterdredger with submersible e-motors.

dual hook upending of large jackets to heavy deck installations. The on-board DP3 system also means this vessel can be employed for installing large and heavy subsea structures, TLP/Spar foundations and topsides. Also for this unique vessel, Bakker Sliedrecht supplied the complete electrical engineering and installation from energy generation and distribution via low and high voltage, electrical propulsion, frequency converters and switchboards, through to cabling, vessel management system (including DP) – and all of course fully integrated. Last, but certainly not least, the electrical engineering specialists at Bakker Sliedrecht are closely involved in a truly ground-breaking development for the special transport sector. However, you will have to bear with us for the time being …. Mum’s the word!

2011

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