330kV Class 90000kVA ~ 240000kVA Three-phase Triple-winding Off-circuit Tap Changer Power Transformer

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 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%

345±2 × 2.5%

121

10.5

13.8

15.75

YNyn0d11

42

302

50

302

62

318

High-Medium 24~26

High-Low 14~15

Medium-Low 8~9

100/100/100

120000

53

374

62

374

77

394

150000

63

442

74

442

91

466

180000

72

507

85

507

104

535

240000

89

629

105

629

130

664

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

2. The capacity allocation of the boost structure can also be (100/50/100)%;

3. According to requirements, buck structure products can be provided, with short-circuit impedance: high-low 24% ~ 26%; High-medium 14% ~ 15%; Medium-low 8% ~ 9%; Its capacity allocation can be (100/100/50)% or (100/100)%. ;

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

5. Transformers with various special parameters and performance can be manufactured according to user requirements.