Tata Power commissions India’s largest natural ester filled power transformer in Mumbai grid


Today, integrated power company Tata Power announced the commissioning of India’s largest natural ester filled 110/33/22 kV, 125 MVA power transformer in the Mumbai Transmission network. The transformer was installed at the BKC receiving station in active collaboration with Hitachi ABB Power Grids and Cargill.

The transformer uses natural ester with a high fire point (350 degrees Celsius), which eliminates fire risk. The fluid is made from a carbon-neutral renewable resource, is biodegradable, non-toxic and nonhazardous in soil and water. It also allows designing the transformer with increased capacity and reduced carbon footprint, making it an ideal solution for congested cities like Mumbai instead of conventional mineral oil-filled transformers.

Tata Power Transmission caters to around 70% of Mumbai’s electricity requirements. It has a network of about 1,200 circuit transmission lines in and around Mumbai with a transformation capacity of about 10,500 MVA. The company is committed to implementing cutting-edge solutions to cater to the increasing power demand in the city where space is a constraint.

Tata Power, together with its subsidiaries & jointly controlled entities, has an installed/ managed capacity of 12,772 MW. It has a presence across the entire power value chain—from the generation of renewable as well as conventional power, including hydro and thermal energy, to transmission & distribution, trading and coal & freight logistics. Renewable energy assets in solar and wind, with nearly 2.6 GW, account for 31% of the company’s portfolio.

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