ILJIN Electric

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R&D

A leading company in the electrical equipment sector, delivering high value-added products and services through world-class technology and cost competitiveness

Continuous research and development is what shapes ILJIN Electric’s future.

Power Transformers R&D Center

ILJIN Electric’s Power Transformers R&D Center is a technology‑driven organization that leads the development of power equipment, designing and engineering a wide range of high‑voltage transformers from 154kV up to 765kV.
By supplying specialized, high‑reliability products tailored to the needs of major utilities and industrial customers, the Center has continuously built up advanced, high value‑added transformer technologies optimized for real‑world operating conditions.
Leveraging core capabilities in high efficiency, low loss, low noise, and compact/lightweight design, ILJIN Electric is developing special‑purpose transformers through demonstration‑oriented projects to meet diverse market requirements, including eco‑friendly insulating oils, gas‑insulated transformers, seismic‑resistant designs, mobile transformers, and solutions for renewable‑energy integration.
Grounded in eco‑friendly insulation technologies and high‑efficiency design, the Power Transformer R&D Center is committed to leading the future of transformer technology while contributing to the realization of sustainable power infrastructure.

Key Milestones of the Power Transformer R&D Center
  • 2024
    • Nov

      154kV Single-phase Seismic-Resistant Power Transformer (ONAF)

    • Jul

      154kV Single-phase Synthetic Ester-filled Power Transformer (KNAF)

  • 2023
    • Dec

      345kV Three-phase Variable Shunt Reactor (OFAF)

    • Nov

      154kV Single-phase High-Efficiency Natural Ester-filled Power Transformer (KFAF)

    • 22.9kV Three-phase Offshore Wind Power Transformer (KFWF)

    • 154kV Three-phase Variable Shunt Reactor (ONAN)

  • 2022
    • Sep

      154kV Three-phase SF₆ Gas-insulated Power Transformer (GDWF)

    • 154kV Three-phase Variable Shunt Reactor (ONAN)

  • 2021
    • Jun

      154kV Single-phase SF₆ Gas-insulated Power Transformer (GDAF)

    • Feb

      154kV Single-phase Shunt Reactor (ONAF)

  • 2020
    • Nov

      154kV Three-phase Mobile Power Transformer (ONAF)

    • Jul

      154kV Single-phase High-Efficiency Power Transformer (ONAF)

    • Jul

      154kV Single-phase SF₆ Gas-insulated Power Transformer (GDWF)

  • 2018
    • Jul

      154kV Single-phase Low-loss Power Transformer (ONAF)

  • 2017

    • 33kV Three-phase Shunt Reactor (ONAF)

  • 2016
    • Nov

      154kV Single-phase Natural Ester-filled Power Transformer (KNAF)

    • 34.5kV Three-phase Shunt Reactor (ONAN)

  • 2015

    • 345kV Three-phase Power Transformer (ONAF)

  • 2012

    • 400kV Three-phase Power Transformer (OFAF)

  • 2010
    • Aug

      154kV Three-phase Lightweight Power Transformer (OFAF)

  • 2009
    • Apr

      154kV Single-phase Low-noise Power Transformer (OFAF)

  • 2004

    • 154kV Three-phase Scott-T Transformer (ONAF)

  • 2003
    • Sep

      154kV Single-phase Flame-Retardant Power Transformer (OFWF)

  • 2000
    • Mar

      154kV Single-phase Power Transformer (OFWF)

  • 1997
    • Jan

      154kV Single-phase Power Transformer (ONAF)

  • 1994
    • Apr

      345kV Single-phase Power Transformer (OFAF)

  • 1989
    • Dec

      154kV Three-phase Power Transformer (ONAF)

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