A groundbreaking milestone has been achieved with the successful commissioning of the world's first 500kV vegetable oil transformer at the 500kV Zengcheng substation in Guangzhou, China. This accomplishment signifies a significant leap for China from following to leading in the realm of high-voltage environmentally friendly transformers. It fills a critical international gap by demonstrating the practical application of 500kV natural ester insulating oil transformers.
