MIDEL Ester Transformer Fluids

MIDEL Services Partner

To further complement our transformer services and products, PBA have become a MIDEL Service Partner. We are now able to directly source and supply MIDEL Ester Transformer Fluids to our customers, with all the economic, environmental and safety benefits that they offer over traditional mineral transformer oils:

  • Environmentally safe
  • Fire safe
  • Lower insurance premiums
  • Civil savings
  • Extended insulating paper lifetime
  • Allows higher operating temperatures
  • Reduced maintenance

MIDEL has been the number one name in ester fluid technology since the 1970s.

The MIDEL range of ester transformer fluids delivers an array of distinct benefits when used in a power transformer. Because MIDEL offer three different ester fluids, you can choose the one that best suits your specific installation and performance criteria. All three MIDEL fluids are more fire-safe and eco-friendly than conventional transformer oil.

Power transformers (generally, those rated above 33 kV) are critical assets in energy infrastructure. They are also expensive and difficult to transport. Power transformers are often deployed in areas of high density population or environmental sensitivity, so fire safety and eco-protection are also prime considerations.

That's why the world's leading utilities and transformer manufacturers turn to MIDEL ester fluids.

MIDEL offer three fluids that are all suitable for use in power transformer applications up to 400kV: MIDEL eN 1204, MIDEL eN 1215 and MIDEL 7131. The fluids all offer the benefits of being readily biodegradable (avoiding environmental damage should leakage occur) and enabling reductions in containment measures.

MIDEL 7131 is a synthetic ester, and is perfectly suited for non-breathing and breathing transformers (due to its excellent oxidation stability) located indoors or outside. (In 2016, MIDEL 7131 was specified and used in a 400kV urban transformer installation in London).

MIDEL's natural ester fluids MIDEL eN 1204 (rapeseed) and MIDEL eN 1215 (soya) are produced from renewable vegetable oils, providing an effective, environmentally friendly solution for non free-breathing power transformers. MIDEL eN 1204 (rapeseed), with its pour point of -31°C, is better suited to colder installation climates than soy-based natural ester fluids.

For further information on the environmental and cost benefits of choosing MIDEL ester transformer fluids, contact us today.


MIDEL eN 1215 Ester Transformer Fluid

MIDEL eN 1215

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MIDEL eN 1204 Ester Transformer Fluid

MIDEL eN 1204

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MIDEL 7131 Synthetic Ester Transformer Fluid

MIDEL 7131

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Tags: MIDEL   -   ester   -   transformer   -   fluids