STP-90 25÷100 kVA, MTP-90 25÷250 kVA

Complete transformer substations of pole-mounted type STP-90 (installation on one support) with the capacity of 25÷100 kVA and mast-mounted type MTP-90 (installation on two supports) with the capacity of 25÷250 kVA are dead-end single-transformer substations of outdoor installation. KTP are used to receive alternating current electric energy with the voltage of 10(6) kV, converting it into electric energy with the voltage of 0.4/0.23 kV. KTP are intended for power supply of agricultural consumers, small objects and settlements related to the III category of power supply reliability. High-voltage input is overhead. Connection of KTP to the overhead line 10(6) kV is carried out through a line disconnector, which is installed on the nearest support. Terminals of outgoing lines on the LV side are overhead or cable. The following types of protection are provided in KTP: — from atmospheric overvoltage; — from interphase short circuits; — from overload and short circuits of 0.4 kV lines. MTP and STP are supplied disassembled. The parts and units for fastening metal structures and the RUNN cabinet on the support are supplied as a set.