Through-pass Complete Transformer Substations (КТП 2) rating 63, 100, 160, 250, 400 кVА, 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 2 are assigned to supply agricultural consumers, separate settlements and small industrial objects in regions with temporary climate (from -45С to +40С). The КТП 2 is mounted on a simple concrete ground 200 mm in height.

HV inputs are overhead or cable ones; outcoming lines are overhead or cable ones.

The КТП 2 is provided with street lighting lines which are automatically switched on by the signal of built-in relay. Automatic circuit-breakers are installed on the LV side. Their number and rated current are given in the table below.

The КТП 2 delivery set is completed with УВН and РУНН switchboards, a power transformer, the РЛНДз-10\630 disconnector for outdoor installation.

Thermic stability current on the HV side during 1 second - 5,0 kА

Electrodynamic stability current on the HV side - 12,5 кА

The weight of the КТП 2 without a transformer rates from 722 to 1570 depending on the version.

The overall dimensions, fitting dimensions and one-line electric circuit diagrams are given in figures 1—4.