Dead-Ended Complete Transformer Substations (КТП 1) rating 63, 100, 160, 250, 400 кV∙А, for voltage 0,4 kV (on the LV side) are assigned for reception, transformation and distribution of three-phase AC electric power with frequency 50 Hz in systems with solidly-earthed neutral on the LV side. The КТП are assigned to supply agricultural consumers, separate settlements and small industrial objects in regions with temporary climate (from -45С to +40С). The КТП 1 is mounted on a simple concrete ground 200 mm in height.

Dead-ended uprated complete transformer substations rating 25, 40, 63, 100, 250, 400 kVА, for voltage 6 or 10 kV (on the HV side) and 0,4 kV (on the LV side) are assigned for reception, transformation and distribution of three-phase AC electric power with frequency 50 Hz in systems with solidly earthed transformer neutral on the LV side.