Furnace transformers are used to step down from voltages between 11 and 33 kV to levels of several hundred volts only. This results in massive secondary currents. These bushings are specified with very specific arrangements to suit the bus-bar arrangement and cooling system. Furnace bus-bars are mostly water cooled.
The furnace transformers are then located close to the furnace itself. To reduce the fire risk the transformers are contained in rooms, it adds to the high ambient temperature.
Our furnace transformers are perfectly suitable in a production environment with high performance due to reliable transformers.