330kV Class 90000kVA ~ 360000kVA Three-phase Triple-winding Off-circuit Tap Changer Autotransformer Power Transformer (Series Winding Voltage Regulation)

Rated capacity (kVA)

Voltage combination and tap range

Bonding Group Label

Level 1 Energy Efficiency

Level 2 Energy Efficiency

Level 3 Energy Efficiency

Short circuit impedance (%)

Capacity allocation (%)

High voltage and tap range (kV)

Medium voltage (kV)

Low voltage (kV)

No-load loss (kW)

Load loss (kW)

No-load loss (kW)

Load loss (kW)

No-load loss (kW)

Load loss (kW)

90000

330±2 × 2.5%

121

10.5

11

35

38.5

YNa0d11

25

237

29

237

36

250

High-Medium 10~11

High-Low 24~26

Medium-Low 12~14

100/100/30

120000

31

292

36

292

45

308

150000

37

347

44

347

54

366

180000

42

396

50

396

62

418

240000

53

492

62

492

77

520

360000

72

668

85

668

104

705

Note: 1. The data listed in the table is applicable to the products with step-down structure;

2. According to the requirements can provide boost structure products, the short-circuit impedance: high-low 10% ~ 11%; High-in 24% ~ 26%; Medium-low 12% ~ 14%;

3. The short-circuit impedance in the table is 100% of the rated capacity;

4. According to user requirements to manufacture a variety of special parameters and performance of the transformer.