220kV three-phase duplex-winding non-field excitation changing power transformer
220kV three-phase oil immersed on-load voltage regulating transformer brings about…
 220kV three-phase duplex-winding non-field excitation changing power transformer

 220kV three-phase duplex-winding non-field excitation changing power transformer

Detailed description

  • Description
  • Technical data
  • Dimension

220kV three-phase oil immersed on-load voltage regulating transformer brings about a series of major transformations in terms of material, technique and construction. It is characteristic of compact construction, low weight, high efficiency, low loss and low noise, reliability of performance. The product can reduce considerable loss on energy grid and operational costs and extend distinct economic efficacy.

It is suitable for power plant, transformer substation, and large-scale industrial and chemistry factory and etc. the product is according to national and IEC standards.


Rated capacity

kVA

Voltage ratio

Vector group

No-load loss

kW

load loss

kW

No-load current

%

Short circuit impedance

%

HV

LV

31500

220±2×2.5%

242±2×2.5%

6.3

6.6

10.5

YNd11

28.0

128

0.56

12-14

40000

32.0

149

0.56

50000

39.0

179

0.52

63000

46.0

209

0.52

75000

10.5

13.8

53.0

237

0.48

90000

64.0

273

0.44

120000

75.0

338

0.44

150000

10.513.8

15.75

1820

89.0

400

0.40

160000

93.0

420

0.39

180000

102

459

0.36

240000

128

538

0.33

300000

15.75

18

20

154

641

0.30

360000

173

735

0.30

370000

176

750

0.30

400000

187

795

0.28

420000

193

824

0.28

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