Three-phase distribution transformer ТЛС (TLS) with cast resin insulation

Three-phase distribution transformer TLS with cast resin insulation

Three-phase distribution transformer TLSDescription

The transformers of TLS series (according to GOST 11677) are manufactured to satisfy needs of power industry, particullarly needs of power objects.
Transformers are manufactured in 6 or 10 kV voltage classes according to standard requirmets of GOST 15150 in climatic version "YHL" (temperate outside mounting) location category 2 and are intended for usage under the following operating conditions:

  • altitude above sea level is not higher then 1000 m;
  • ambient air temperature considering overheating inside factorey-assembled switchgear from minus 50°С up to plus 50°С;
  • relative humidity not higher than 100% at 25°С;
  • environment should be non-explosive, without corrosive steams in concentrations that are likely to destroy metal or insulation (atmosphere type II as to GOST 15150);
  • mounting in vertical position.

The transformers are intended for usage in electrical appliances which are subject to lighting overvoltage at standard safety requirements, and have standard "b" level insulation as to GOST 1516.3, thermal stability class "B" as to GOST 8865 and inflammability class FH I as to GOST 28779. 

Table 1. Technical data of distribution transformers TLS of powers 10-63 kVA

Parameter

TLS-10

TLS-16

TLS-25

TLS-40

TLS-63

Power rating, kVA

10

16

25

40

63

Rated frequency, Hz

50

50

50

50

50

Voltage HV, kV

6; 6,3; 10; 10,5

Voltage LV, V

400

400

400

400

400

Vector group of transformer

D/Yn-11; Y/Yn-0

D/Yn-11; Y/Yn-0; Y/Zn-11

Short circuit voltage, %

4,4

3,3

2,8

2,7

2,1

Short circuit losses, Wt

280

320

470

650

800

No-load current, %

 4,9

4,8

2,0

1,8

1,5

No-load losses, Wt

95

135

150

200

350

Mass, kg.

150

180

240

270

500

Note. Transformers may be manufactured with different vector groups and parameters. 

Table 2. Dimensions of transformers TLS on powers 10 and 16 kVA 

Transformer type

Dimensions, mm

Weight, kg

A

B

C

D

E

F

TLS-10

557

510

38

115

155

128

150

TLS-16

577

530

48

125

165

146

180

Table 3. Dimensions of transformers TLS on powers 25, 40 and 63 kVA 

 

A

B

C

D

E

F

G

H

I

J

K

L

TLS-25

656

296

758

730

300

480

222

410

170

225

263

170

TLS-40

656

320

775

755

300

480

222

400

182

225

270

192

TLS-63

745

407

820

805

400

625

255

390

210

325

245

192

Table 4. Technical data of distribution transformer TLS on powers 100-2500 kVA

Parameter

Value

Power, kVA

100-2500

Vector group of transformer

D/YH-11, Y/YH-0

Material of HV and LV windings

copper

Rated HV voltage, kV

(6,10)+/-2х2,5%

Rated LV voltage, V

400

Thermal stability level

F (155oC)

Climatic version

УХЛ2 (moderate)

Protection level

IP00, IP21, IP31

Lifetime

25 years

Warranty period

3 years

Standard

GOST P52719, GOST 11677

Table 5.

Power ratings, kVA

Uh1, кВ

Losses, Wt

No load current, Io, %

Usc, %

Weight, kg

Ро

Рs.c.(115°С)

100

6 or 10

390

1620

0,8

6

670

160

6 or 10

550

2300

0,6

6

930

250

6 or 10

800

3220

0,6

6

1330

400

6 or 10

1050

4780

0,6

6

1750

630

6 or 10

1420

5300

0,4

6

2450

1000

6 or 10

1750

7600

0,3

6

3300

1250

 6 or 10

 2300

10500

0,3

6

3600

1600

 6 or 10

 2600

14000

0,3

6

4700

2500

 6 or 10

 4000

15500

0,3

6

6500

Table 6. Dimensions of distribution transformers TLS on power 100-2500 kVA

Power ratings, kVA

100

160

250

400

630

1000

1250

1600

2500

L, mm

1080

1280

1380

1470

1600

1630

1700

1820

2060 

L1, mm

370

435

470

500

535

545

570

590

700

L2, mm

930

1070

1150

1380

1400

1430

1580

1700

1940

H, mm

1010

1150

1290

1370

1445

1685

2070

2090

2430

H1, mm

945

1085

1220

1315

1422

1645

2010

2020

2365

H2, mm

690

815

905

908

945

1200

1425

1430

1675

H3, mm

330

355

375

399

455

460

535

575

575

B, mm

600

600

600

700

970

970

970

970

1250

B1, mm

500

500

500

600

820

820

820

820

1070

B2, mm

445

530

520

530

650

650

650

650

750

Dimensions of connecting busbars LV, pic.

1

1

1

2

3

3

3

3

3

K, mm

30

30

40

60

80

80

30

30

30

M, mm

15

15

20

15

17,5

17,5

25

25

30

N, mm

-

-

-

30

45

45

50

50

60

D, mm

11

11

13

11

13

13

17

17

17

General view of transformer (drawing; 10 and 16 kVA)

General view of transformer (drawing; 25, 40 and 63 kVA)

General view of transformer (drawing; 100-2500 kVA)

Distribution transformer TLS in protective cover

Three-phase distribution transformer TLS in protective cover

Table 7. Dimensions of protective cover for distribution transformers TLS on powers 10-63 kVA

Transformer type

Dimensions, mm

Weight, kg

H

H1

L

L1

L2

B

B1

B2

B3

TLSZ-10(16)

800

640

930

470

400

670

505

415

110

210 (245)

TLSZ-25

1140

970

950

520

480

735

645

600

130

320

TLSZ-40

520

145

380

TLSZ-63

625

175

530

General view of protective cover (drawing; 10-63 kVA)

Table 8. Dimensions of protective cover for distribution transformers TLS on powers 100-2500 kVA

Power, kVA

Dimensions, mm

100

160

250

400

630

1000

1250

1600

2500

H

1280

1405

1565

1610

1810

2110

2370

2535

2840

H1

1220

1345

1515

1555

1715

2015

2300

2460

2780

H2

920

1040

1405

1245

1395

1685

1800

1965

2315

B

1025

1055

1100

1130

1150

1185

1150

1580

1780

B1

500

500

600

600

600

820

820

820

1070
B2 110 110 150 150 150 150 150 180 180

L

1725

1875

2105

2205

2240

2285

2380

2735

2985
L1 1600 1750 1940 2020 2055 2075 2160 2500 2760
L2 220 220 260 260 260 300 300 350 350
L3 105 105 115 115 130 130 130 192 192
L4 160 105 115 120 120 135 135 192 192
L5 160 160 170 170 190 205 205 275 275

k

30

30

40

60

80

80

100

100

120

N

-

-

-

15

45

45

50

50

60

M

15

15

20

17,5

17,5

17,5

17,5

25

30

h

60

60

70

90

90

110

130

130

130

D

13

13

13

11

13

13

13

17

17

S*

3

3

4

4

5

8

8

10

15

Variation

2

2

2

1

1

1

1

1

1

Weight, kg

880

1150

1590

2065

2790

3700

4500

5330

7200

* S - thicknes of HV bus-bar; dimensions of LV bus-bar = 40x5mm

General view of protective cover (drawing; 100-2500 kVA)