Oil-immersed Transformer
Grade 2 Energy Efficiency Transformers (GB 20052-2020)
The Grade 2 line across oil-immersed and dry-type (SC14-NX2) — the volume choice balancing efficiency and capex.
The Grade 2 line across oil-immersed and dry-type (SC14-NX2) — the volume choice balancing efficiency and capex.
The Grade 2 line is built to the Grade 2 figures of GB 20052-2020: dry-type SC14 (NX2) epoxy-resin cast transformers, plus oil-immersed S-series distribution transformers at the corresponding efficiency level. Grade 2 is the common choice for volume distribution retrofits and general industrial projects balancing efficiency against capex.
Voltage combination: HV 10 (6.3/6) kV ±5% or ±2×2.5%, LV 0.4kV; connection group Yyn0 or Dyn11.
| 型号 Model | 额定容量 (kVA) | 空载损耗 (W) | 负载损耗 (W) | 短路阻抗 (%) |
|---|---|---|---|---|
| SC14-30/10-NX2 | 30 | 130 | 640 | 4.0 |
| SC14-50/10-NX2 | 50 | 185 | 900 | 4.0 |
| SC14-80/10-NX2 | 80 | 250 | 1240 | 4.0 |
| SC14-100/10-NX2 | 100 | 270 | 1415 | 4.0 |
| SC14-125/10-NX2 | 125 | 320 | 1665 | 4.0 |
| SC(B)14-160/10-NX2 | 160 | 365 | 1915 | 4.0 |
| SC(B)14-200/10-NX2 | 200 | 420 | 2275 | 4.0 |
| SC(B)14-250/10-NX2 | 250 | 490 | 2485 | 4.0 |
| SC(B)14-315/10-NX2 | 315 | 600 | 3125 | 4.0 |
| SC(B)14-400/10-NX2 | 400 | 665 | 3590 | 4.0 |
| SC(B)14-500/10-NX2 | 500 | 790 | 4390 | 4.0 |
| SC(B)14-630/10-NX2 | 630 | 910 | 5290 | 6.0 |
| SC(B)14-800/10-NX2 | 800 | — | — | 6.0 |
| SC(B)14-1000/10-NX2 | 1000 | — | — | 6.0 |
| SC(B)14-1250/10-NX2 | 1250 | — | — | 6.0 |
| SC(B)14-1600/10-NX2 | 1600 | — | — | 6.0 |
| SC(B)14-2000/10-NX2 | 2000 | — | — | 6.0 |
| SC(B)14-2500/10-NX2 | 2500 | — | — | 6.0 |
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