The Korea Times
Major electric machinery and equipment developer HD Hyundai Electric has successfully developed a transformer running on an environmentally cleaner oil than a conventional one in the largest capacity ever in the industry here. The HD Hyundai subsidiary said Thursday the accomplished product will head to a substation in the United Kingdom operated by National Grid, a local utility company. The transformer, 400 kilovolt and 460 megavolt-amperes, uses synthetic ester oil as an insulator oil against heat and electricity. The company said the new oil is highly biodegradable, making itself more environmentally sustainable than conventionally used mineral oil. Synthetic ester oil, compared to mineral oil, has a higher flash point and helps reduce risks of fire, according to the company. It added that at times of oil leak, synthetic ester oil’s environmental impact is relatively low, making it suitable for sites where both fire safety and environmental protection are required. Transformers that use eco-friendly insulating oils need different design requirements from conventional products, maki
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