- Oil-immersed transformers
- Molded transformers
Changes of Oil-immersed transformers
Recommendation of Upgrade

High-precision remaining life assessment services for oil-fi lled transformers
Winner of PM Excellent Product Award (Development Award) from Japan Institute of Plant Maintenance
Winner of Technical Achievement Award (Development Award) from Japan Electrical Manufacturers'Association
Do you have any transformers in use for more than 25 years? The service life expectancy of a transformer is 30 years.
" The damage from accidents caused by aging deterioration is huge."
" Please note that there are risks of failure even though if your transfer is still in use. "
At Fuji Electric,
" We estimate a remaining life of a transformer with high accuracy using our original structured neural network. "
Structured neural networks

Winner of Technical Achievement Award (Development Award) from Japan Electrical Manufacturers'Association

" The damage from accidents caused by aging deterioration is huge."
" Please note that there are risks of failure even though if your transfer is still in use. "
At Fuji Electric,
" We estimate a remaining life of a transformer with high accuracy using our original structured neural network. "
Fuji Electric' s proprietary prediction and diagnosis technology was developed to be more highly precise and uses a modified neural network technique capable of learning complex multivariate relationships and automatically tuning the structure of the model.
We have a proven track record that includes forecasting electricity demand and optimizing energy plant operations.


By March 2023, we have diagnosed 2144 transformers.
Our extensive diagnostic results include 707 transformers
that are competitors’ products (about 33%).
Many customers have reported that they were able to
implement optimal maintenance and replacement plans
by utilizing our diagnostic results when reviewing their
replacement and maintenance planning.
