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Single-phase transformers are widely used as distribution transformers in western developed countries, southeast Asia, north and south America. In the distribution network with decentralized power supply, single-phase transformer has significant advantages as a distribution transformer. It can reduce the length of low-voltage distribution lines, reduce line losses and improve power supply quality. It adopts a high-efficiency energy-saving wound iron core structure design. The transformer is characterized by adopting pole mounting type suspension installation method, small volume, small infrastructure construction investment, reduction of low-voltage power supply radius and can reduce low-voltage line losses by more than 60%.
GB1094.1 ~ 2-2013 GB/T 6451-2015
High pressure rating: 10 (10.5, 11, 6, 6.3, 6.6) kV
Low pressure rating: 0.22 kV (0.23, 0.24)
Tapping range: non-field excitation changer (5% plus or minus 5%, plus or minus 2 x2.)
Link category: Iio or Ii6
Insulation level: LI75AC35 / AC5
Rated capacity(kVA) | Voltage Combinationand Tap range | Vector Group Symbol | No-load loss (W) | Load loss | No-load current (%) | Short circuit impedance (%) 4.0 | ||
High pressure | High pressure tap range (%) | Low ressure (kV) | ||||||
5 | 6 6.3 10 10.5 11
| ±2×2.5 ±5
| 0.22 0.23 0.24
| iio Ii6
| 40 | 215 | 3.2 | 3.5 |
10 | 45 | 235 | 2.8 | |||||
15 | 53 | 315 | 2.8 | |||||
20 | 62 | 405 | 2.8 | |||||
25 | 70 | 480 | 2.8 | |||||
30 | 80 | 560 | 2.8 | |||||
50 | 120 | 855 | 2.3 | |||||
63 | 135 | 1020 | 2.1 | |||||
80 | 160 | 1260 | 2.0 | |||||
100 | 190 | 1485 | 1.9 | |||||
125 | 220 | 1755 | 1.8 | |||||
160 | 260 | 2050 | 1.6 |
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