Tans11-15

Specification of 220kV Power Transformer(Two-Winding)

Specification of 220kV Power Transformer(Three-Winding)

High density of paper cylinder is used in internal diameter side of the winding close to the core, which

results in a structure without clearance between the core and the winding that strengthens the strength

of withstanding short-circuit impulse of winding.

166

128

125

178

185

200

249

210

159

258

272

SFPSZ9-120 MVA/220 kV

OSFPS9-120 MVA/220 kV

OSFPSZ9-120 MVA/220 kV

SFPS9-150 MVA/220 kV


SFPSZ-K-150 MVA/220 kV

SFSZ-K-180 MVA/220 kV


OSFPSZ9-180 MVA/220 kV

OSFPSZ-240 MVA/275 kV

SFPSZ-K-250 MVA/220 kV

220 8 1.25%

220 2 2.5%

220 8 1.25%

220 2 2.5%

220 8 1.25%

220 8 1.25%

220 8 1.25%

220 8 1.25%

220 8 1.25%

275

220 8 1.25%

121

121

121

121

121

121

121

121

121

132 12 1.25%

115

YNyn0d11

YNa0d11

YNa0d11

YNa0d11

YNyn0d11

YNyn0d11

YNyn0d11

YNyn0d11

YNa0d11

YNa0d11

YNyn0d11

Totalweight

(t)

Impedance %Loadloss(kW)

No-load

loss (kW)

Connecting

symbolType

Rated voltage (kV)

H.V M.V

95

50

55

100

105

85

82

130

70

54.95

116

7.91

17.8

21.17

7.5

7.85

28

31

7.92

23.9

35.21

26

420

285

300

495

500

580

595

550

360

462.4

850

M-L

23.27

28.8

31.41

22.9

23.33

45

44

22.6

34.8

18.34

44

H-L

13.85

8.2

8.52

13.3

13.6

15

13

12.93

8.2

15.56

18

H-M

10.5

38.5

38.5

38.5

10.5

11

10.5

10.5

10.5

38.5

10.5

L.V

2 3

65

SFP10-240 MVA/220 kV


SFP8-380 MVA/220 kV

SFP9-420 MVA/220 kV

242 2 2.5%

242 2 2.5%

242 2.5%

242 2 2.5%

YNd11

YNd11

YNd11

YNd11

Total weight

(t)

Load

loss (kW)

No-load

loss (kW)

Connecting

symbolType

Rated voltage (kV)

H.V

125

165

178

190

14

14

16

14

199

247

230

257

535

670

720

840

15.75

20

18

23

L.V

Impedance

%

+3-1

220kV COMBINED

POWER TRANSFORMER

1. OSFPSZ8-X-120 MVA/220kV combined transformer operating

in Gejiu,Yunnan

2. SFPS8-X-120 MVA/220kV three-winding combined

transformer,Hubei

3. SFPSZ8-X-120 MVA/220kV three-phase three-winding on-load

combined auto-transformer,Yunnan

4. SSP9-X-75 MVA/220kV three-phase two-winding combined

transformer

Specification of 220kV Combined Power Transformer(Two-Winding)

The separate parts of a combined transformer share a common set of cooling system,

conservator and piping system. For on-load regulating transformer, there is only one

set of on-load regulating mechanism, the occupied area of the transformer on site is

only slightly larger than that of the traditional transformer.

In delta connection, LV leads of the combined transformer, firstly connected to be a

delta type in corrugated lead pipe on the top of the tank, are brought out from LV.

bushing then. Thus compared with the method before, this way to connect the leads

can save 50% of workload and assembly period on site.

The tertiary leads of the step-down transformer can be directly brought out to con-

nect with the overhead line of the substation and be connected to form delta type

Structure characteristics

Type

242 2 2.5%/10.5

YNd11

H--L

0.5

53

226

13.32

3 28290

3 35000(filling with nitrogen)

SSP9-X-75 MVA/220 kVThree-phase two-winding

combined transformer

Ratio of voltage(kV)

Connection group

Winding combination

No-load current(%)

No-load loss(kW)

On-load loss(kW)

lmpedance(%)

Weight of active part(kg)

Transport weight

(kg)

Transport dimension

(L W H mm)

242 2 2.5%/13.8

YNd11

H--L

0.4

90

362.5

13.245

3 37500


242 2 2.5%/13.8

YNd11

H--L

0.5

82

327.3

13.4

3 31000


3300 2480 2950 3530 2840 3380 3253 2680 3200





1

Specification of 220kV Combined Power Transformer (Three-Winding)

outside. Such simple structure, resulting in a convenient assembly, makes it easy to carry out a split-

phase test and to supervise the condition of the transformer.

Corrugated pipe is used to connect oil piping of three single-phase transformer, which is installed on the

special steel pedestal supplied by XD. Convenient installation can also avoid the relative displacement

caused by the difference of the property of the construction on site.

The structure of single-phase three-limb core makes flux distribution uniform, thus substantially de-

creases the flux leakage, help avoid partial over-heat, and strengthen the ability of withstanding short

circuit of the transformer.

Together with other special technical measures, the technology to stack core without upper yoke effec-

tively lower the noise, which of the transformer with blowers normally is lower than 70db and which of

the main body is lower than 65db. It is very important for the substation in the mountain area or the

boost substation inside the cavity of the hydroelectric power station to have a low noise.

2 3 4

87

Ratio of voltage

Connection group

Winding combination

No-load current

No-load loss

On-load loss

lmpedance

Weight of active part

Transportweight

Kg

Transport dimension

(LWH)

Type

242 2 2.5%/121/38.5

YNyn0d11

SFPS8-X-120 MVA/220 kVThree-phase three-winding


OSFPSZ8-X-120 MVA/220 kVThree-phase three-winding

combined auto-transformer

SFPSZ8-X-120 MVA/220 kVThree-phase three-winding


SFPS9-H-150 MVA/220 kVThree-phase three-winding


220 8 1.25%/115/37

YNyn0d11

220 8 1.25%/115/35

YNyn0d11

220 8 1.5%/121/10.5

YNyn0d11

H--M

0.3

100

480

13.5

H--L

0.3

100

150

23

M--L

0.3

100

100

8

H--M

0.5

60

320

9

H--L

0.5

60

240

32

M--L

0.5

60

250

20

H--M

0.23

105

470.7

13.91

H--L

0.23

105

140.2

23.43

M--L

0.23

105

98.24

7.9

H--M

0.3

110

498

14.47

H--L

0.3

110

167

24.65

M--L

0.3

110

116

7.9

3 33630


3670 2980 3490

3 21680


4895 2960 3330

3 36600


3800 3210 3480

3 43800

3 51860+52550(filling with nitrogen)

4300 3350 3575

Ratio of voltage(kV)

Connection group

Winding combination

No-load current(%)

No-load loss(kW)

On-load loss(kW)

lmpedance(%)

Weight of active part(kg)

Transport weight

(kg)

Transport dimension

(L W H mm)

Based on the digestion and absorption of the importing technique, XD designs and

manufactures series of 110kV power transformers with the characters of low loss, low

noise, good ability of withstanding short-circuit and high operating reliability. New

series of 110kV power transformers by XD have various types of structures that will be

suitable for the requirements in different installing environment, such as city network,

agriculture network, indoor and outdoor, etc.

Since 1992, XD has provided the customers nearly 700 units of new series of 110kV

products among which 300units have been exported to Malaysia, Thailand, Indonesia,

Indian, China Hong Kong special administrative region and so on.

110kV POWER TRANSFORMER

1. SFSZ30MVA/132kV power trans-

former with low losses operating in

Malaysia

2. 200MVA/110kV power trans-

former

3. SFZ10-50MVA/132kV power

transformer with high impedance for

CLP, Hong Kong 1

2 3

SSZ10-5 MVA/110 kV

SFSZ9-12.5 MVA/110 kV

SS10-16 MVA/110 kV

SFSZ9-16 MVA/110 kV

SFSZ8-20 MVA/110 kV

SFSZ10-20 MVA/110 kV

SFSZ10-31.5 MVA/110 kV

SFSZ9-40 MVA/110 kV

SFSZ10-40 MVA/110 kV

SFSZ9-50 MVA/110 kV

SFSZ9-50 MVA/110 kV

SFSZ9-50 MVA/110 kV

110 8 1.25%

110 8 1.25%

115 2 2.5%

110 8 1.25%

110 8 1.25%

110 8 1.25%

110 8 1.25%

110 8 1.25%

110 8 1.25%

110 8 1.25%

110 8 1.25%

110 8 1.25%

10.5

10.5

38.5 2 2.5%

38.5 2 2.5%

38.5 2 2.5%

38.5 2 2.5%

38.5 2 2.5%

38.5 2 2.5%

38.5 2 2.5%

10.5

38.5 2 2.5%

38.6 2 2.5%

YNyn0d11

YNd11d11

YNyn0d11

YNyn0d11

YNyn0d11

YNyn0d11

YNyn0d11

YNyn0d11

YNyn0d11

YNyn0d11

YNd11d11

YNyn0d11

Totalweight

(t)

Impedance%Loadloss(kW)

No-load

loss (kW)

Connecting

symbolType

Rated voltage (kV)

H.V M.V

41

15

16.5

19.6

23.9

17.4

24.9

35

27.5

30.6

32.7

32.7

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

9.8

6.5

6.5

109

38.2

46.6

40.5

52.2

52.2

66.4

74

74

84.9

90

96

194

78.5

58.5

99

109.7

109.7

154.8

181

188

265

240

240

M-LH-L

10.5

10.5

10.5

10

10.5

10.5

10.5

10.5

10

16.6

10.5

10.5

H-M

6.5

6

6.3

10.5

10.5

10.5

10.5

10.5

10.5

6.6

10.5

10.5

L.V

17.5

18.3

18

17.5

18

18

18.2

18

18

29.5

18

18

Specification of 110kV Power Transformer(Three-Winding)

Specification of 110kV Power Transformer(Double-Winding)

109

S 1 0 - 8 M VA / 1 1 0 k V

SZ9 - 10 MVA / 110 kV

SZ9 - 16 MVA / 110 kV

SF9 - 20 MVA / 110 kV

SF9 - 20 MVA / 110 kV

SFZ9-20 MVA/110 kV

SFZ9-20 MVA/110 kV

SFZ9-25 MVA/110 kV

SFZ9-31.5 MVA/110 kV

SZ9 - 40 MVA / 110 kV

SFZ10-40 MVA/110 kV

SZ10-50 MVA/110 kV

SFZ10-50 MVA/110 kV

SFZ10-50 MVA/132 kV

SF9 - 63 MVA / 110 kV

SFZ9-63 MVA/110 kV

SF9 - 75 MVA / 110 kV

SF10-75 MVA/110 kV

SFP9-95 MVA/110 kV

SF10-130 MVA/110 kV


SFP9-170 MVA/110 kV



110 2 2.5%

110 8 1.25%

110 8 1.25%

110 2 2.5%

121 2 2.5%

110 8 1.25%

110 8 1.5%

110 8 1.25%

110 8 1.25%

110 8 1.25%

110 8 1.25%

110 8 1.25%

110 8 1.25%

132 1.75%

121 2 2.5%

110 8 1.25%

115 2 2.5%

121 2 2.5%

121 2 2.5%

121 2 2.5%

121 2 2.5%

121 5 2.5%

121 2 2.5%

121 2 2.5%

6.3

6.3

6.3

6.3

35

10.5

11

6.3

11

10.5

10.5

10.5

10.5

11

6.3

10.5

10.5

10.5

10.5

10.5

10.5

15.75

15

15.75

YNd11

YNd11

YNd11

YNd11

YNd11

YNd11

YNd11

YNd11

YNd11

YNd11

YNd11

YNd11

YNd11

YNyno

YNd11

YNd11

YNd11

YNd11

YNd11

YNd11

YNd11

YNd11

YNd11

YNd11

10.5

10.5

10.5

10.5

10.5

10.5

11

10.5

14

15

10.5

10.5

14.5

27

10.5

18

10.5

10.5

10.51

10.5

10.94

12.92

10.5

14

26.3

28.3

39

39.2

39.2

40.8

42.1

45.5

55

70.5

59

86.6

78.6

93

73.9

93

84

88.5

86

107

123

121.6

142

139

38

52.4

81.5

98.3

97.9

98.67

101.9

116.4

146.3

167.9

168.8

164.8

172.8

230.4

237.5

224.6

256.2

234

353.88

370

416.25

521.5

478

510

9.64

11.83

14.14

18.7

19

17.84

16.1

21.2

22.1

25.7

26.6

24.1

30.7

21.3

38.3

33.8

50

40.5

52.5

63.3

85.38

81.02

77.4

110

Total weight

(t)

Impedance

(%)

Load loss

(kW)

Noa-load

loss (kW)

Connecting

symbolType

Rated voltage (kV)

H.V L.V

+3-1

Documents

Tans11-15