Oil-Immersed Transformers

Three-phase power transformers immersed in insulating oil (mineral or vegetable) are used in power substations and electrical energy distribution, both in sheltered locations and outdoor installations. Their application can be as a voltage step-up or step-down transformer. They are manufactured in power ratings from 300 kVA up to 5000 kVA in voltage classes of 7.2 kV, 15 kV, 25 kV, and 36 kV. In photovoltaic power generation systems, they are used as step-up transformers, adapting low generation voltages to the levels required for consumption or distribution. Usual power ratings of 500, 750, 1000, 1500, 2000, 2500, and 3000 kVA, in classes 15, 24.2, and 36.2 kV. High performance with high efficiency, aligned with the needs and strategies of reducing system losses and energy conservation of each individual customer.