TDS

1) General-purpose power transformers and autotransformers in the capacity range of 2.5 – 1000 MVA, voltage class 10 – 1100 kV.
2) Magnetic system Construction types: 1/2, 2/0, 2/2, 3/0, 3/2, where the first digit means a number of legs with the windings, the second – a number of side yokes.
3) Windings All windings are of a round shape in plan and are arranged concentrically on the leg. Each winding can consist of one or several concentrically arranged parts (concenters) connected in series.
4) Winding wires The material of wires is electrical copper (aluminum). The types of the wires used are: - simple, - subdivided with paper insulated elementary conductors, - transposed with enamel insulated elementary conductors.
5) Voltage regulation types - on-load (OLTC), - no-load (NLTC) - without regulation. Usage of 2 tap-changers for different windings in one transformer is possible.
6) Cooling types: ONAN, ONAF, OFAF, OFWF, ODAF, and ODWF. With ODAF, ODWF cooling systems oil supply and its directed circulation in the windings axial ducts are constructively ensured. Axial ducts are formed by the strips and cylinders fitting to the winding both from inside and from outside. Additional axial ducts can be arranged within radial size.

Transformtrs calculation software package list