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As single-phase or three-phase transformers
Rating range
From approx. 1000 - 25,000 kVA
Frequency
16.67 - 50 - 60 Hz
Voltages
up to Um series ≤ 72.5 kV
Winding material
Copper
Application
Power transformers
Rectifier transformers 6-, 12-, 18-, 24- and 36-pulse
Regulating transformers with on-/off tap changers
Starting transformers
Furnace transformers
Testing transformers
Traction transformers
Model
Hermetically sealed or with expansion tank and air dehumidifier
Cooling
Air-cooled (ONAN), forced a cooling (ONAF)
By means of an oil-/air heat exchanger (OFAF)
By means of an oil-/water heat exchanger (OFWF)
Filling
Mineral oil or silicon oil