Product Overview
This 35kV oil immersed power transformer is applicable to power distribution of substations and industrial & mining plants.
Insulating oil serves for heat dissipation and electrical insulation. Featuring stable operation, strong overload capacity, reliable cooling structure and easy maintenance, it can supply power steadily under long-term outdoor conditions, and is widely used for high-voltage power transmission and distribution.
Model and Meaning
Transformer Product Standards
GB 1094.1-1996
GB 1094.2-1996
GB 1094.3-2003
GB 1094.5-2008
GB/T 6451-2008
GB/T 7595-2008
JB/T 3837-2010
Transformer Normal Service Conditions
The height above the sea level is below 1000m;
Ambient temperature;
Highest air temperature +40℃ ;
Highest daily average air temperature+30℃ ;
Highest annual average air temperature +20℃ ;
Lowest outdoor air temperature -25℃ ;
Technical Parameters
S11 series level 35kV oil-immersed transforimers
50kva 1600kva 3-phase duplex winding non-excited tap-changing distribution transformer
| Rated capacity (kVA) | Voltage Combination and Tap range | Vector Group Symbol | No-load Loss(kW) | Load Loss(kW) | No-load current (%) | Short-circuit Impedance Voltage (%) | ||
| HV(kV) | HV Tap Range % | LV(kV) | ||||||
| 50 | 35 | ±5 | 0.4 | Dyn11 Yyn0 | 0.19 | 1.21/1.15 | 2 | 6.5 |
| 100 | 0.26 | 2.01/1.92 | 1.8 | |||||
| 125 | 0.31 | 2.38/2.26 | 1.7 | |||||
| 160 | 0.32 | 2.82/2.69 | 1.6 | |||||
| 200 | 0.39 | 3.33/3.16 | 1.5 | |||||
| 250 | 0.46 | 3.95/3.76 | 1.4 | |||||
| 315 | 0.55 | 4.76/4.53 | 1.4 | |||||
| 400 | 0.66 | 5.75/5.47 | 1.3 | |||||
| 500 | 0.77 | 6.92/6.58 | 1.2 | |||||
| 630 | 0.94 | 7.87 | 1.1 | |||||
| 800 | 1.11 | 9.41 | 1 | |||||
| 1000 | 1.3 | 11.54 | 1 | |||||
| 1250 | 1.58 | 13.94 | 0.9 | |||||
| 1600 | 1.91 | 16.67 | 0.8 | |||||
Note 1: Rated capacity 500kVA and below transformer, the load loss above the oblique line in the table applies to Dyn11 or Yzn11; the load loss below the oblique line applies to Yyn0.
Note 2: According to requirements, the transformer can supply HV tap change ±2×2.5%.
Note 3: other dimension is designed according to customers.
630kva ~31500kva triple phase duplex winding non exciting regulating power transformer
| Rated capacity(kVA) | Voltage Combination and Tap range | Vector Group Symbol | No-load Loss(kW) | Load Loss(kW) | No-load current (%) | Shortcircuit Impedance Voltage (%) | ||
| HV(kV) | HV Tap Range % | LV(kV) | ||||||
| 630 | 35 | ±5 | 3.15 6.3 10.5 |
Yd11 | 0.94 | 7.87 | 1.1 | 6.5 |
| 800 | 1.11 | 9.41 | 1.0 | |||||
| 1000 | 1.3 | 11.54 | 1.0 | |||||
| 1250 | 1.58 | 13.94 | 0.9 | |||||
| 1600 | 1.91 | 16.67 | 0.8 | |||||
| 2000 | 2.45 | 18.38 | 0.7 | |||||
| 2500 | 2.88 | 19.67 | 0.6 | |||||
| 3150 | 35~38.5 | ±5 | 3.15 6.3 10.5 |
3.42 | 23.09 | 0.56 | 7 | |
| 4000 | 4.07 | 27.36 | 0.56 | |||||
| 5000 | 4.86 | 31.38 | 0.48 | |||||
| 6300 | 5.9 | 35.06 | 0.48 | 7.5 | ||||
| 8000 | 35~38.5 | ±2×2.5 | 3.15 3.3 6.3 6.6 1.0511 |
Yd11 | 8.1 | 38.48 | 0.42 | |
| 10000 | 9.79 | 45.32 | 0.42 | |||||
| 12500 | 11.34 | 53.87 | 0.40 | 8 | ||||
| 16000 | 13.68 | 65.84 | 0.40 | |||||
| 20000 | 16.2 | 79.52 | 0.40 | |||||
| 25000 | 19.15 | 94.05 | 0.32 | |||||
| 31500 | 22.75 | 112.86 | 0.32 | |||||
Note 1: Outline dimension is designed according to requirements
