Free breathing transformers are equipped with an under-cover airbag or a casing to allow the oil to expand during temperature changes. Because it is not hermetic, the oil is always in contact with the air.
Environmentalist member of our compressor family It is perfect for businesses that want efficiency, brave, agile and strong. Features and advantages of the system: 3 phase/50hz/380v electric motor with IP 55/f insulation protection
They are produced in the power range of 10-100,000 kVA, up to 170 kV high voltage level, three or single phase, oil-lubricated, ONAN, ONAF cooling, with no-load tap changer or automatic under load tap changer, both external and internal.