Oil-Immersed Distribution Transformers

Three-phase oil-immersed distribution transformers for utility and industrial power distribution. The referenced 6–15 kV range includes standard capacities from 10 to 1,600 kVA and operation at 50 or 60 Hz.

Configuration options include two or three windings, on-load or off-circuit tap changing and vector groups such as Dyn11, Yyn0 and Ynd11. ONAN, ONAF and OFAF cooling arrangements are listed for the family; the selected cooling method and accessories are defined for each order.

The published service conditions permit indoor or outdoor applications, ambient temperatures from −30°C to +40°C and installation altitudes up to 2,000 m. The installation must meet the manufacturer’s environmental requirements.

Specify rated capacity, primary and secondary voltage, frequency, vector group, impedance, tap range, cooling arrangement and site conditions when requesting a quotation. Losses, oil quantity, dimensions and total mass vary by rating and must be confirmed in the approved product datasheet.