【Haichuan New Energy】The world’s most powerful 24 MVA subsea transformer

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Hitachi Energy announced that it has begun testing the world’s most powerful 24 MVA subsea transformer at the port of Vaasa in Finland. This subsea transformer will enable the electrification of subsea equipment using renewable hydraulic energy, thereby reducing energy consumption and carbon emissions. The test involved submerging a 55-ton underwater transformer in a harbor basin to examine its thermal behavior and pressure compensation system. The goal is to ensure its reliability under underwater conditions. These transformers are part of the main contract awarded to Hitachi Energy, which provides two OceaniQTM subsea transformers, two step-up transformers, and two step-down transformers. Once the testing is complete, they will be submerged in waters about 850 meters off the coast of Norway. Ultimately, they will supply water to the OneSubsea compression system at Shell’s Omen Lange field in the North Sea. Bruno Melles, manager of Hitachi Energy’s transformer business, explained: “Underwater transformers represent advanced technology, as they are capable of operating at depths of 3,000 meters in extremely harsh conditions.” ”. Omen Lange is a completely underwater treatment system, powered by hydroelectric power from the Norwegian grid. It is one of the reinforced recycling projects in the industry with the lowest carbon emissions and the highest energy efficiency. Furthermore, the project will produce natural gas from the depths of the North Sea. Then, the natural gas will be transported to the refinery located in Nihamna. The plant supplies about 20% of the UK’s total natural gas consumption.