General Description

Transformers TNG-SESH and TNG(F)-SESH 14 series. Three-phase power filled fire-resistant dielectric fluid in the voltage class of 10 kV. TNG-SESH and TNGF-SESH are designed to work indoors in a temperate climate.

 In the dielectrics FR3 fire resistant liquid. The transformer is designed to operate on the objects with increased fire danger. This transformer serves as an alternative to transformers with dry insulation, transformers filled with dielectric liquid “sovtol”, “sovol”.

In the production of "FR3" vegetable oils are used.
14 series transformers TNG(F)-SESH is filled with fire-resistant dielectric fluid “FR3”.
Liquid “FR3” has improved characteristics of fire safety while maintaining the standard dielectric properties of transformer oil.
The ignition temperature is liquid "FR3" 340 °C.
The liquid "FR3" does not contain elements of oil or halogens, sulfur or any other harmful substances.

Technical Characteristics

Name Power, kVA

Voltage HV/LV, kV

Connection diagram

Idling losses, W,

Short-circuit losses, 

Short circuit voltage, %

TNG(F)-SESH
25
10,00/0,40;
10,50/0,40;

6,00/0,40; 6,30/0,40;
                   
Δ/Yн-11; Y/Yн-0                    190 680  5,0
TNG(F)-SESH 
40 260 1 020 5,0
TNG(F)-SESH 
63 340 1 600 5,5 
TNG(F)-SESH 
100
400 2 600
5,0 
TNG(F)-SESH
160 560 3 600 6,0
TNG(F)-SESH 250 650 4 100 4,5
TNG(F)-SESH
400
830 6 200 4,5
TNG(F)-SESH
630 1 050 8 300 6,0
TNG(F)-SESH
1 000 1 600 11 800
5,5 
TNG(F)-SESH
1 250 1 800 17 000 6,0
TNG(F)-SESH
1 600 2 200 18 200
6,0
TNG(F)-SESH
2 500 3 600 28 000 6,0