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Home > Products > 6–10 kV oil-immersed transformers > TMG type three-phase oil-immersed distribution transformers

TMG type three-phase oil-immersed distribution transformers

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Power transformer, three-phase, two-winding, hermetically sealed, with natural oil cooling. Designed for voltage transformation in consumer power system networks. Windings are available in aluminium or copper design, using either round or foil conductors. The windings may be of circular or oval shape.
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Description

Power transformer, three-phase, two-winding, hermetically sealed, with natural oil cooling. Designed for voltage transformation in consumer power system networks. Windings are available in aluminium or copper design, using either round or foil conductors. The windings may be of circular or oval shape.

Power range

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Rated power range: 25÷2500 kVA.
HV winding rated voltage :  6(10) kV.
DETC ( Off-circuit tap changer ), HV-side regulation range:  ±2x2.5%.
Climatic category: U1; UHL1; Т1.

Transformer symbols

ТМG  – Three-phase oil-immersed transformer
Х – Rated power, kVA
6 (10) – Voltage class, kV
U1 – Climatic category and installation type in accordance with GOST 15150

Characteristic

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Technical characteristics for TMG type three-phase oil-immersed distribution transformers, 25–2500 kVA, standard losses
Rated power, kVA
Type
Rated voltage, kV
Winding connection diagram and vector group
Losses
Short-circuit voltage, %
No-load current, %
No-load, W
Short-circuit, W
25 ТМG-
25		 6 (10)/0,4 Y/Yn-0; D/Yn-11
120
 600
 4 2,0
40 ТМG-
40		 6 (10)/0,4 Y/Yn-0; D/Yn-11
160 900 4 1,8
63 ТМG-
63		 6 (10)/0,4 Y/Yn-0; D/Yn-11
220 1280 4 1,6
100 ТМG-
100		 6 (10)/0,4 Y/Yn-0; D/Yn-11
280 1970 4 1,4
160 ТМG-
160		 6 (10)/0,4 Y/Yn-0; D/Yn-11
450 2700 4 1,2
250 ТМG-
250		 6 (10)/0,4 Y/Yn-0; D/Yn-11
610 3800 4 1,0
400 ТМG
-400		 6 (10)/0,4 Y/Yn-0; D/Yn-11
780 5600 4 0,8
630 ТМG-
630		 6 (10)/0,4 Y/Yn-0; D/Yn-11 1070 8300 5 0,6
1000 ТМG-1000 6 (10)/0,4 Y/Yn-0; D/Yn-11 1470 12200 5 0,4
1250 ТМG-1250 6 (10)/0,4 Y/Yn-0; D/Yn-11 1740 15000 6 0,3
1600 ТМG-1600 6 (10)/0,4 Y/Yn-0; D/Yn-11 1700 18000 6 0,25
2500 ТМG-2500 6 (10)/0,4 Y/Yn-0; D/Yn-11 2500 28000 7 0,2



Technical characteristicsfor TMG type three-phase oil-immersed distribution transformers, 25–2500 kVA, reduced losses
Rated power, kVA
Rated voltage, kV
Winding connection diagram and vector group
Losses
Short-circuit voltage, %
No-load current, %
No-load, W
Short-circuit, W
25
6 (10)/0,4
Y/Yn-0; D/Yn-11 ; Y/Zn-11
100 540 4 3,5
40
6 (10)/0,4
Y/Yn-0; D/Yn-11 ; Y/Zn-11
125
850 4 3,0
63
6 (10)/0,4
Y/Yn-0; D/Yn-11 ; Y/Zn-11
200
1160 4 2,5
100 6 (10)/0,4
Y/Yn-0; D/Yn-11 ; Y/Zn-11
250
1750 4 2,0
160
6 (10)/0,4
Y/Yn-0; D/Yn-11 ; Y/Zn-11
375
2350 4 1,5
250
6 (10)/0,4
Y/Yn-0; D/Yn-11 ; Y/Zn-11
425
2955 4 1,25
400
6 (10)/0,4
Y/Yn-0; D/Yn-11
565
4181 4 1,0
630 6 (10)/0,4 Y/Yn-0; D/Yn-11 695 6136 5 0,75
1000 6 (10)/0,4 Y/Yn-0; D/Yn-11 956 9545 5 0,6
1250 6 (10)/0,4 Y/Yn-0; D/Yn-11 1350 13250 5 0,5
1600 6 (10)/0,4 Y/Yn-0; D/Yn-11 1700 15000 6 0,4
2500 6 (10)/0,4 Y/Yn-0; D/Yn-11 2400 24000 6 0,4

Transformers with rated power from 25 kVA to 250 kVA are manufactured with winding connection scheme and vector group Y/Zn-11 .

Overall and Mounting Dimensions

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Transformer Overall Dimensions

Rated power, kVA

Length (L), mm

Width (B), mm

Height (H), mm

HV bushing center-to-center distance (K), mm

Distance between channel centerlines

Oil weight, kg

Total weight, kg

Longitudinal axis (A), mm

Transverse axis (A1), mm

25

840

550

850

170

450

400

80

295

40

840

550

900

170

450

400

95

345

63

970

570

1235

170

500

400

120

500

100

1000

730

1355

190

550

450

150

665

160

1080

760

1450

190

550

550

185

900

250

1225

790

1560

230

550

550

290

1225

400

1360

810

1720

230

660

660

360

1660

630

1560

1040

1800

230

660

660

515

2370

1000 1845 1150 1950 230 820 820 655 3150
1600 1985 1295 2350 250 1070 1070 1100 4680
2500 2190 1680 2710 250 1070 1070 1245 6900


Каталог.cdr


Dimensional drawings

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Power transformer, three-phase, two-winding, hermetically sealed, with natural oil cooling. Designed for voltage transformation in consumer power system networks. Windings are available in aluminium or copper design, using either round or foil conductors. The windings may be of circular or oval shape.
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