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Home > Products > Power transformers for railway infrastructure, voltage classes 10, 110, and 220 kV > Transformers type ТДТНЖ-16000÷40000 /110/27.5/11 for AC electrified railways

Transformers type ТДТНЖ-16000÷40000 /110/27.5/11 for AC electrified railways

product
The ТДТНЖ transformer is a power, three-phase, three-winding, bell-type transformer with natural oil and air circulation, designed for railway applications. It is manufactured with rated powers of 16000, 25000, and 40000 kVA. Transformers rated from 25000 kVA are produced with bell-type tanks. These transformers are intended for supplying AC electrified railway networks. The main technical parameters and manufacturing requirements comply with ГОСТ R 51559.
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Description

The ТДТНЖ transformer is a power, three-phase, three-winding, bell-type transformer with natural oil and air circulation, designed for railway applications. It is manufactured with rated powers of 16000, 25000, and 40000 kVA. Transformers rated from 25000 kVA are produced with bell-type tanks. These transformers are intended for supplying AC electrified railway networks. The main technical parameters and manufacturing requirements comply with ГОСТ R 51559.

Power range

HV winding – 115 kV
MV winding – 27.5 kV
LV winding – 6.6; 11 kV

Transformer symbols

Т – Three-phase transformer
Д – Natural oil circulation and forced air circulation
Т – Three-winding
Н – On-load tap-changing voltage regulation (РПН)
Ж – For AC electrified railway supply
Х – Rated power, kVA
110 – HV voltage class, kV
У1 or УХЛ1 – Climatic design and placement category according to ГОСТ15150

Characteristic

Parameter
Value
Rated power, kVA
16000
25000
40000
No-load losses, kW
21
28,5
39
Short-circuit losses, kW
100
140
200
No-load current, %
0,5
0,4
0,3
Short-circuit voltage HV-MV, %
10,5
10,5
10,5
Short-circuit voltage HV-LV, %
17,5
17,5
17,5
Short-circuit voltage MV-LV, %
6,5
6,5
6,5
Dimensions, mm
L (length) 6250 6280 6000
B (width) 4000 4120 4440
H (height) 5150 5625 5210
Oil weight, kg 13800 17050 16785
Shipping weight, kg 42000 53080 60885
Total weight, kg 46800 61710 71375

Dimensional drawings

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The ТДТНЖ transformer is a power, three-phase, three-winding, bell-type transformer with natural oil and air circulation, designed for railway applications. It is manufactured with rated powers of 16000, 25000, and 40000 kVA. Transformers rated from 25000 kVA are produced with bell-type tanks. These transformers are intended for supplying AC electrified railway networks. The main technical parameters and manufacturing requirements comply with ГОСТ R 51559.
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Tusov Artem Aleksandrovich
Deputy Director for Marketing and Sales

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