General Description

Transformers TM-SESH, TMG-SESH, TMF-SESH, TMGF-SESH capacity 25 - 2 500 kVA. Switching branches without excitation windings of a PBV. Cooling system type "M". Working conditions - in the open air.

Series transformers

  • 11 – standard series;
  • 12 – series with reduced indicators of load losses and short circuit;
  • 15 – matching series.

Modern lines of transverse cutting are equipped with blocks of plates of the core, which reduces losses in the transformer.
Reduced bulk-mass characteristics of transformers.
Application of multistage tightness control.

Technical Characteristics

Name/Design
Series
Power, kVA
Voltage class HV, kV Voltage class LV, kV
Connection diagram
Type, range and number of voltage regulation stages on the HV side
TM(G)-SESH
11 25-160
6,00; 6,30; 10,00; 10,50; 15; 20; 35
0,4
Y/Yн-0; Δ/Yн-11; Y/Zн- 11 NLTC ±2х2,5%
     
TM(G)(F)-SESH
11 250-2 500
6,00; 6,30; 10,00; 10,50; 15; 20; 35
0,4
Y/Yн-0; Δ/Yн-11;       Y/Zн- 11
TMG-SESH
12 25-2 500
10,00; 6,00; 10,5; 6,3
0,4
Y/Yн-0; Δ/Yн-11;       Y/Zн- 11
TMG-SESH
15 400-2 500  10,00; 6,00
10,00; 6,00
Y/Yн-0;
Δ/Y-11;
Y/Δ-11;
Δ/Δ-1