POWER TRANSFORMERS

three-phase generator step-up transformers; maximum power - 1250 MVA with rated voltage up to 347 kV, 1000 MVA up to 525 kV; single-phase generator step-up transformers in a three-phase bank up to 1600 MVA, 500 kV and 1250 MVA, 750 kV; designed for operation in the unit with one or two substation generators; three-phase two- and three-winding autotransformers to connect high voltage networks and systems 63&&500 MVA, voltage class up to 500 kV; any combinations of rated voltages are possible; single-phase three-winding autotransformers of the same purpose; the highest parameters achieved in three-phase bank 1500 MVA with voltage combination 750/330 kV and 2000 MVA, 1150/500 kV; two - and three-winding transformers for substations of voltage class up to 500 kV and capacity up to 300 MVA; auxiliary and start-reserve transformers for high power units in the required range of capacity and voltage; transformers from 25 to 63 MVA up to 330 kV are designed with split low voltage windings