The complete double-transformer (2КТПА) substations with emergency supply inputs are designed for reception, conversion and distribution of three-phase AC electric power with frequency 50 Hz and are intended for the first category and special reliability group consumers’ supply (auxiliaries of gas-transfer compressor stations of gas-main pipelines). The 2КТПА double-transformer substations are assigned for indoor installation and can be operated in temporary climate conditions (from -20С to +40С).

The all-purpose complete transformer substations with rated power 25…250 kVА for three-phase AC, frequency 50 Hz and voltage 6(10)/0.4 kV are single-transformer substations of single-ended type for outdoor installation. The КТПУ are assigned for energy supply of petroleum industry consumers. The КТПУ are designed to receive, convert and distribute electric power for oil-production industry in regions with temporary climate (frоm -45С tо +40С).

The КТППН Complete Transformer Substations for submersible pumps power supply are intended for reception and transformation of electric power, control and protection of the ПЭД submersible pump electric motors rating from 16 to 125 kVA with built-in control block.

The КТПТО-80-96У1 Complete Transformer Substations with rated power 80 kVА for outdoor installation are intended for heating and other ways of electrothermal treatment of concrete and frozen soil with automatic temperature control and for power supply of manual three-phase tools and temporary lightning (voltage 36 V) on building grounds.

The КТПСН auxiliary complete transformer substations are intended to supply auxiliaries of power stations (including nuclear power stations). Climatic type and category of installation of substations are УЗ and 04 according to ГОСТ 15150-69. Air temperature in power and relay cells must not to exceed 55С. The КТПСН can operate in seismically dangerous regions.