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Polaris Wind Power Network News: TBE Hengyang Transformer Co., Ltd. recently successfully developed the domestic largest capacity special vegetable oil transformer for offshore wind towers, breaking the technological monopoly of foreign-funded enterprises such as ABB in this field, and realizing the domestic production of special vegetable oil transformers for offshore wind towers.
In the ultra-high voltage assembly workshop of TBE Electrician Hengbian Company, workers are doing the final debugging of this offshore wind tower transformer with the largest capacity in China. Just over a week ago, this transformer with full intellectual property rights passed the short-circuit bearing capacity, vibration and internal combustion arc tests at one time at the National Electrical Appliance Product Supervision and Inspection Center. All performance indicators fully meet the strict requirements of offshore wind tower operation.
Compared with transformers operating on land, the working environment of offshore wind power tower transformers is harsh. In addition to the high salt and high corrosion at sea, the transformer must work in a relatively narrow offshore tower. Because the space inside the tower is very limited and the heat dissipation conditions are poor, it is also necessary to focus on solving key technical problems such as miniaturization of transformers, heat dissipation and safety and reliability.
, TBE Electrician Hengyang Transformer Co., Ltd. Technical Department Director Fu Yiping, said: The conventional oil-immersed transformer , its insulation level is A, that is, its coil average (heat resistance) temperature is 105 degrees, the insulation level of this transformer must reach H, that is, it must reach 180 degrees,
, Hengbian Company's technical research and development team finally determined to set the cooling method reasonably, adopt high ignition point environmentally friendly vegetable oil and H-level insulation through technical research and simulation, and adopted ship anti-corrosion technology technology, and finally made the product pass various rigorous tests and assessments, with the advantages of strong short-circuit resistance, low loss, strong anti-corrosion ability, and all performances reach the international leading level.
It is reported that offshore wind energy resources are mainly concentrated in the eastern coastal areas of , where power supply is short. In 2019, China's cumulative installed capacity of offshore wind power reached 4.23 million kilowatts, and it is predicted to exceed 10 million kilowatts by 2023, with huge market prospects. However, offshore wind power products have extremely high requirements for reliability, maintenance-free, environmental protection and equipment appearance, and have always been in the hands of a few foreign-funded enterprises. This 12500KVA/35KV special vegetable oil transformer for offshore wind power towers successfully developed by Hengbian Company this time has realized the domestic production of the special vegetable oil transformer for offshore wind power towers for the first time.
At present, Hengbian Company has achieved the integration and engineering application of key equipment such as 220KV boost transformer, 220KV reactor, 252KV combined appliance, 40.5KV inflatable switch cabinet and other key equipment, and has the ability to integrate and solve the offshore wind power transmission and transformation system.
Disclaimer: The above content is reprinted from Polaris Electric Power News Network, and the content posted does not represent the position of this platform.
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