The oil-immersed power transformer adopts a new insulation structure to improve the ability of short circuit resistance. The core is Mmade of high-quality cold-rolled grain oriented silicon steel sheet. High and low voltage windings are made of high-quality oxygen-free copper wire and multi-layer cylinder process structure. All fasteners adopt special anti-loose treatment, high mechanical strength. The corrugated tank shell is a permanently sealed tank with its own elasticity to adapt to the expansion of oil. It has been widely used in various distribution equipment.
| Nominal capacity | Voltage combination | Join groups | Loss SZ11 type (kW) | Non-load current | Short circuit impedance | Weight (kg) | ||||
| (kVA) | High Voltage (KV) | High pressure tap range | Low voltage (KV) | label | no-load | load | (%) | (%) | Heavy oil | Total weight |
| 200 | 10 | ±4×2.5% | 0.4 | Yyn0 Dyn11 | 0.48 | 3.06 | 1.5 | 4 | 260 | 1040 |
| 250 | 0.56 | 3.6 | 1.4 | 290 | 1160 | |||||
| 315 | 0.67 | 4.32 | 1.4 | 320 | 1360 | |||||
| 400 | 0.8 | 5.22 | 1.3 | 350 | 1550 | |||||
| 500 | 0.96 | 6.21 | 1.2 | 400 | 1820 | |||||
| 630 | 1.2 | 7.65 | 1.1 | 4.5 | 490 | 2170 | ||||
| 800 | 1.4 | 9.36 | 1 | 600 | 2590 | |||||
| 1000 | 1.7 | 10.98 | 1 | 710 | 3000 | |||||
| 1250 | 1.95 | 13.05 | 0.9 | 820 | 3630 | |||||
| 1600 | 2.4 | 15.57 | 0.8 | 840 | 4145 | |||||
1.Installation height: no more than 1000m above sea level
2.Ambient temperature: -40ºC-40ºC Class 10kV is suitable for AC 50Hz, rated working voltage 10kV and below the power system, as small and medium-sized substations,industrial and mining enterprises, institutions, power distribution and lighting load transformer equipment.35KV is suitable for the power system with AC 50Hz and rated working voltage 35KV, as the transformer equipment of 35KV type substation.
