Pole-Type Compact Transformer Substations (PTCTS)
Pole-Type Compact Transformer Substations (PTCTS) with ratings from 25 to 400 kVA, designed for three-phase AC at a frequency of 50 Hz and a voltage of 10(6)/0.4 kV, are innovative radial-type outdoor substations equipped with a single transformer and designed to supply power to small residential areas and agricultural facilities.
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Pole-type Compact Transformer Substations (PTCTS) are installed on power transmission line poles and are used in small settlements, agricultural facilities, industrial enterprises, and other applications. PTCTS are characterized by a compact design, ease of installation and maintenance, as well as high reliability and operational efficiency.
PTCTS substations have the following features:
- High-Voltage Equipment: Equipped with modern devices for efficient high-voltage control.
- Outdoor Power Transformer: Equipped with three-phase or single-phase outdoor transformers, providing flexibility in application.
- Low-Voltage Switchgear (LVSG): Includes circuit breakers on outgoing feeders, ensuring safe and reliable power distribution.
The substation can be equipped with a street lighting system. The use of pole-type substations is a technically convenient and economically justified solution, with the key advantage being the ability to install them in locations where other types of substations cannot be installed due to limited space. Installing the substation in close proximity to power transmission lines reduces the length of connected conductors, thereby reducing power losses.



| CTS Rating, kVA | Rated Current of Outgoing Lines, A | Weight with Transformer, kg | |||
|---|---|---|---|---|---|
| Line No. 1 | Line No. 2 | Line No. 3 | Line No. 4 | ||
| 25 | 40 | 32 | - | - | 580 |
| 40 | 63 | 40 | - | - | 620 |
| 63 | 63 | 40 | 40 | - | 700 |
| 100 | 100 | 80 | 40 | - | 860 |
| 160 | 160 | 100 | 80 | - | 1100 |
| 250 | 250 | 100 | 100 | 100 | 1340 |
| 400 | 1650 | ||||
At the customer's request, the circuit breakers on the outgoing lines can be replaced.
Example of ordering a 250 kVA CTS rated at 6 kV:
CTS S-1O-250/6/0.4 U1.
Four-Tran