Combined Transformer

Series number

Name

Unit

parameter

1

Nominal capacitance

kVA

506380100125160200250315400500630800100012501600

2

Nominal voltage

KV

6 6.3 6.6 10 10.5 11

3

High voltage tapping range

±5  ±2×2.5

4

Coupling group mark number

Yyn0,Dyn11

5

Voltage resistance at working frequency

KV

6kV   25kV/1min

10 kV   35kV/1min

6

Impluse voltage

KV

6kV  Full wave 60kV  10kV  Full wave 75kV

6kV  Full wave65kV  10kV   Full wave 85kV

7

Load switch

A

300600

Thermally stable current 12KA16KA

Thermally stable current 30KA;  40KA

8

Backup protection fuse

Shield breaking capacitance kV

 50

9

Ambient temperature

^oC

25 ^oC40 ^oC

10

Oil top layer temperature

^oC

∠85

11

Noise level

dB

≤50

Nominal capacitance

(kVA)`

Voltage combination and tapping range

Coupling group mark number

No-load loss

kW

Load loss

kW

No-load current

Short circuit impedance

High voltage

(kv)

High voltage tapping range

Low voltage

(kv)

50

6

6.3

10

10.5

11

±5

±2×2.5

 0.4

Yyn0

Dyn11

0.14

0.78

1.3

4

63

0.16

1.04

1.2

80

0.18

1.20

1.0

100

0.20

1.43

1.0

125

0.24

1.71

0.9

160

0.29

2.15

0.8

200

0.35

2.55

0.7

250

0.40

3.00

0.7

315

0.48

3.55

0.6

400

0.56

4.20

0.6

500

0.68

5.00

0.5

630

0.84

6.00

0.5

4.5

800

0.98

7.12

0.5

1000

1.19

9.78

0.4

1250

1.37

11.10

0.4

1600

1.65

13.2

0.4