Brush Transformers manufacture mineral oil filled transformers for systems with a highest system voltage of 145kV up to a maximum naturally cooled rating of 60MVA. Higher ratings can be obtained by addition of forced air and forced oil cooling systems.
Where required Brush are also able to supply transformers with alternative cooling systems such as forced air cooled/forced oil cooled and water cooled using water filled heat exchangers.
For 33kV systems Brush manufacture transformers using alternative cooling fluids such as Midel and FR3, where transformers are either located inside buildings giving rise to issues related to increase fire risk or where there are environmental concerns.
For traction systems Brush are able to provide; 132/25kV traction supply transformers,
25-0-25kV auto-transformers, and 25kV 300Amp trackside boostertransformers, and train mounted transformers.