Selection of Main Transformer Cooling System in Offshore Substation
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Abstract
As salt mist corrosion, electrical equipments of the offshore substation are usually arranged in an enclosed space. However, it will bring great challenges for the cooling of equipments, espacially the main transformers which have the most quantity of heat.This paper analyses the challenges for the ONAN transformers in the offshore substation, and gives a design of the closed cycle water cooling system for the transformer. By the comparison in technology and economy of the two schemes, the conclusion shows that the OFWF transformer is more suitable than ONAN transformer for offshore substation.
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