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Hitachi Energy tests world’s first 765kV ester-filled transformer

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Hitachi Energy has successfully tested the world’s first 765kV/400kV, single-phase 250 MVA transformer filled with natural ester oil. This transformer is a major step in ultra-high-voltage AC (alternating current) grid safety and sustainability. The use of natural ester makes the transformer safer and more environmentally friendly than traditional mineral oil-based models. This transformer was developed under Hitachi Energy’s TrafoStar technology platform, which ensures standardised design and quality across its global manufacturing facilities. Natural ester oil…

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Raychem RPG becomes first Indian firm to earn E3, C3, F1 certification for cast resin transformers

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Raychem RPG has become the first Indian manufacturer to earn the E3, C3, and F1 certifications for its cast resin transformers (CRTs).  The certification was awarded after rigorous testing at CESI laboratories in Italy. CESI is renowned for its advanced testing facilities, including KEMA Labs, which is known for its high-power laboratory capabilities. In a statement, Raychem RPG said the certification aligns with the IEC60076-11:2018 global standard. It represents a key step in improving safety,…