Technology

Proven power technology that delivers stability
and performance in the field

An eco-friendly and safe power technology
Natural Ester Transformers

Core Technology
Poongsan Electric commercialized Korea’s first vegetable oil transformer in 2005 and has since led the development of eco-friendly transformer technology.

Natural ester transformers use biodegradable insulating oil derived from natural esters. This environmentally friendly fluid is ideal for high-voltage power equipment and helps minimize environmental impact while improving safety for people and surrounding ecosystems.

Key Features

Poongsan Electric's natural ester transformers are a next-generation eco-friendly energy solution that provides environmental protection, enhanced fire safety, and long-term reliability.

Vegetable-derived natural esters address the limitations of conventional mineral oil transformers.
Natural ester transformers provide safe and sustainable energy for urban and suburban areas as well as public infrastructure.
  • Environmental
    Characteristics
    Natural ester transformers utilize non-toxic, biodegradable natural esters to provide eco-friendly insulation
    • Tested for non-toxicity*
    • Biodegradable**
    • Minimal risk of soil and water pollution
    • Supports compliance with environmental regulations

    * CERTIFIED NON-TOXIC TEST REPORT

    * CERTIFIED BIODEGRADATION TEST REPORT

  • Fire Safety
    Characteristics
    Compared with conventional mineral oil, it offers significantly
    higher flash and fire points, greatly reducing fire risk.
    • Flash & Fire points above 300°C
    • Reduced risk of fire spread
    • Safe for installation in urban and suburban areas
    • Enhanced protection for workers and facilities

    Sealed Retrofit Aging Study

    Enhanced Life of Insulating Paper
    with Natural Ester Insulating Oil

  • Performance
    Characteristics
    Slows the deterioration of insulating paper inside the transformer, ensuring stable performance during prolonged operation
    • Significantly extended insulating paper lifespan
    • Reliable insulation during extended high-temperature operation
    • Extended overall transformer lifespan
    • Reduced maintenance costs
Applications
  • Pole Mounted Transformers
  • Distribution Transformers
  • Pad Mounted Transformers
  • Power Transformers

Pad Mounted Transformer 1MVA, Panama

Distribution Transformer 2MVA, Hong Kong