transformer oil, Midel 7131 transformer insulating fluid

Midel is a synthetic ester based transformer insulating fluid that has been in use in transformers across the world without any reported incidents of fires since its introduction in 1978.

Choosing the right transformer type for high risk locations is crucial. Consult our transformer selection paper ‘Transforming Expectations’ for more information on fluid vs dry types.

The fire resistant and safe transformer fluid
MIDEL 7131 is the prime choice for power and distribution transformers when fire resistant, safe alternatives to other liquid filled or cast resin transformers is required.

The environmentally friendly transformer fluid
MIDEL 7131 is readily biodegradable and non-hazardous, this makes it safe for use even in the most ecologically sensitive areas.

Moisture tolerant transformer fluid
Transformers are engineered to have a long service life. MIDEL 7131 with its high moisture tolerance can play an important role in enhancing the life of the cellulose transformer insulation and thus the service life of the transformer.

high voltage transformer
transformer oil, Midel 7131 transformer insulating fluid