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CHINT’s Revolutionary 750 kV Ester Oil-Immersed Power Transformer Offers Significant Environmental Benefits

AUGUST 26, 2024

Oil-Immersed Power Transformer
Oil-Immersed Power Transformer
Oil-Immersed Power Transformer

Innovative Technology Combines Ultra-High Voltage Capacity with Eco-Friendly Design for Next-Generation Power Transmission


PARIS, 27 August 2024 – A first-of-its-kind Ester Oil-Immersed Power Transformer has been released to the market by smart energy solutions leader, CHINT, offering a sustainable alternative for use in the energy infrastructure.

Transformers are critical in enabling the efficient transmission and distribution of electrical energy. Traditional transformers use mineral oil as the insulation liquid which improves both production and treatment at a cost-effective price point. However, the use of mineral oil can have a negative environmental impact as it is derived from non-renewable sources, is a potential fire hazard due to its relatively low flash point and in the event of a spill or leak, can pose an environmental risk with soil or water contamination.

The new 750 kV Ester Oil-Immersed Power Transformer offers a sustainable alternative that is set to redefine standards in grid reliability, safety and environmental protection by using ester oils.

This transformer is 99% biodegradable with a strong manufacturing capacity of 750 kV and below. Its high voltage rating allows it to be used in large-scale power transmission networks, opening up the benefits of ester oil to a wider range of applications.

These applications include:

  • Ultra-high voltage transmission systems for long-distance power distribution
  • Integration of renewable energy sources like wind and solar farms into the grid
  • Substations in environmentally sensitive areas or densely populated urban centers
  • Industrial facilities requiring high power capacity and enhanced safety measures

Key features that set this transformer apart include:

  • Use of Cargill’s FR3 fluid, a renewable vegetable oil-based ester with excellent cooling and insulating properties
  • Innovative winding structure and main insulation optimization for enhanced performance
  • Improved exit turret simulation and verified cooling system for optimal efficiency

Benefits of ester oil include enhanced safety through an ignition point exceeding 355°C, which makes it less flammable and safer with a reduced risk of fire. Using ester oil also extends the life of transformer insulation, leading to longer transformer lifetimes and improved reliability. This results in fewer power outages and reduced disruption.

Kevin Ma, Power Transformer –  Product manager at CHINT, said, “With the energy landscape evolving at a rapid pace, so is the demand for sustainable solutions.

Our new 750 kV ester oil-immersed transformer is a significant leap in transformer technology offering substantial environmental benefits and efficiencies and aligns with the goals of modern energy strategies. Its ability to operate at ultra-high voltages while maintaining eco-friendly characteristics makes it ideal for the future of power transmission and distribution.”

For more information about the new CHINT 750 kV Ester Oil-Immersed Power Transformer visit: here

CHINT develops solutions that range from smart transmission and distribution solutions to renewable energy systems, all designed to address the global challenges of decarbonization.

For more information about the CHINT solutions, visit www.chintglobal.com.

About CHINT

CHINT established in 1984, stands at the forefront of the electrical equipment and renewable energy sectors as a premier manufacturer of low-, medium-, and high-voltage solutions. With more than 40 years of experience in the sector, our global workforce of over 50,000 dedicated professionals serves more than 140 countries. Our commitment to intelligent solutions caters to the evolving needs of the energy market, reinforcing our position as an industry leader. In 2023, our annual revenue surpassed an impressive 22.1 billion USD, reflecting our rapid growth trajectory.

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