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Home > Products > 10, 110, and 220 kV power transformers for railways > TDTNZh-16000–40000/110/27.5/11 type transformers for AC electrified railways

TDTNZh-16000–40000/110/27.5/11 type transformers for AC electrified railways

product
TDTNZh type power transformers, three-phase, three-winding, bell-type construction, with natural air and oil circulation, for railway applications. Rated power: 16000, 25000, 40000 kVA. Transformers rated 25000 kVA and above are supplied with bell-type tank design. Designed for power supply of AC electrified railways. Manufactured in accordance with GOST R 51559.
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Description

TDTNZh type power transformers, three-phase, three-winding, bell-type construction, with natural air and oil circulation, for railway applications. Rated power: 16000, 25000, 40000 kVA. Transformers rated 25000 kVA and above are supplied with bell-type tank design. Designed for power supply of AC electrified railways. Manufactured in accordance with GOST R 51559.

Power range

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

    

Transformer symbols

Т – Three-phase transformer
D – Natural oil circulation and forced air circulation
Т – Three-winding
N – On-load tap changer (OLTC)
Zh — Designed for AC electrified railway systems
Х – Rated power, kVA
110 – HV voltage class, kV
U1 or UHL 1 – Climatic category and installation type in accordance with GOST 15150

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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TDTNZh type power transformers, three-phase, three-winding, bell-type construction, with natural air and oil circulation, for railway applications. Rated power: 16000, 25000, 40000 kVA. Transformers rated 25000 kVA and above are supplied with bell-type tank design. Designed for power supply of AC electrified railways. Manufactured in accordance with GOST R 51559.
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Tusov Artem Aleksandrovich
Deputy Director for Marketing and Sales

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