Complete Transformer Substations for outdoor installation are assigned for electric power supply in three-phase AC systems with voltage 6-10/0.4 kV and frequency 50 Hz. They are intended for electric power supply of industrial objects in temporary climate regions (from –40С to +40С).

Complete transformer substations with power 250, 400, 630, 1000, 1600, 2500 kV•А for voltage 6,10 kV (here and then – КТП) are assigned to receive, convert and distribute electric power of three-phase AC with frequency 50Hz. They are applied for supplying the industrial objects in temporary climate regions and can be mounted in unheated buildings.