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Home > Products > Oil-immersed power transformers, voltage class 110–150 kV > Three-winding power transformers with OLTC, type ТМТN-6300/110-U1(UHL1)

Three-winding power transformers with OLTC, type ТМТN-6300/110-U1(UHL1)

product
Three-phase, three-winding power transformer with natural circulation of oil and air, with voltage regulation under load (OLTC) from the HV side. Automatic control is performed via an automatic controller supplied together with the transformer. Using a TMTN-type transformer ensures reliable power supply to the consumer throughout the entire service life.
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Description

Three-phase, three-winding power transformer with natural circulation of oil and air, with voltage regulation under load (OLTC) from the HV side. Automatic control is performed via an automatic controller supplied together with the transformer. Using a TMTN-type transformer ensures reliable power supply to the consumer throughout the entire service life.

Power range

Power range: 6300 kVA
Primary winding nominal voltage HV: 115 kV
MV winding nominal voltage: 38.5 kV
LV winding nominal voltage: 6.6 (11) kV
Climatic version: U1 or UHL1


Transformer symbols

Т – Transformer
М – Oil-cooled with natural oil circulation
Т – Three-winding
N – Voltage regulation under load with natural oil circulation

Characteristic

Каталог.cdr

Technical specifications of ТМТN-6300/110/35/10-U1(UHL1) transformer
Parameter name
Value
Transformer type
ТМТN-6300/110
Rated power, kVA
6300
Rated voltage of HV winding, kV
115
Rated voltage of MV winding, kV
38,5
Rated voltage of LV winding, kV
6,6; 11
Winding connection diagram and vector group
Yn/Yn/D-0-11
No-load losses, kW
12,5
Short-circuit losses, kW 52
Short-circuit voltage HV-MV, %
10,5
Short-circuit voltage HV-LV, % 17
Short-circuit voltage MV-LV, % 6
No-load current, % 0,5
Oil weight, kg 11000
Transport weight, kg 27000
Total weight, kg 32500

Overall and Mounting Dimensions

Каталог.cdr

Dimensional drawings

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Three-phase, three-winding power transformer with natural circulation of oil and air, with voltage regulation under load (OLTC) from the HV side. Automatic control is performed via an automatic controller supplied together with the transformer. Using a TMTN-type transformer ensures reliable power supply to the consumer throughout the entire service life.
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team
Tusov Artem Aleksandrovich
Deputy Director for Marketing and Sales

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