10kV, 35kV grade SZ11 series oil-immersed on-load regulating transformer
SZ11 Series on-load regulating Power Transformer OLTC,is applied CAD tools with advanceddesign,reasonable structure...
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SZ11 Series on-load regulating Power Transformer OLTC,is applied CAD tools with advanced design,reasonable structure,excellent choice of materials,indicators in line GB1094/1996 "power transformer" and GB/T6451/1999 "three-phase oil-immersed power transformer parameters and requirements",is currently the leading domestic level.Industry and agriculture can be widely used in urban and rural power grids,energy conservation and environmental protection are important.This product is laminated iron chips was stage-like manner,changed the traditional core laminated old process,the internal magnetic circuit to improve the distribution of the core,so that the load loss,no-load current and noise than conventional laminated core of the transformer means reduced by 20%,respectively,load loss decreased by 10%.
10kV on-load regulating transformer technical data
| Rated Capacity (KVA) | Connection group symbol | Voltage combination（kV） (H.V.) | Voltage combination（kV） (L.V.) | No-load current % | No-load loss W | Load loses (75℃) W | Short-circuit impedance % |
|---|---|---|---|---|---|---|---|
| 200 | Yyn0 Dyn11 | 6±4×2.5 6.3±4×2.5 10±4×2.5 10.5±4×2.5 11±4×2.5 | 0.4 | 1.0 | 380 | 2900 | 4.0 |
| 250 | 0.4 | 0.9 | 440 | 3420 | 4.0 | ||
| 315 | 0.4 | 0.9 | 530 | 4100 | 4.0 | ||
| 400 | 0.4 | 0.8 | 640 | 4950 | 4.0 | ||
| 500 | 0.4 | 0.8 | 760 | 5890 | 4.0 | ||
| 630 | 0.4 | 0.6 | 960 | 7260 | 4.5 | ||
| 800 | 0.4 | 0.6 | 1120 | 8890 | 4.5 | ||
| 1000 | 0.4 | 0.6 | 1360 | 10400 | 4.5 | ||
| 1250 | 0.4 | 0.5 | 1560 | 12300 | 4.5 | ||
| 1600 | 0.4 | 0.5 | 1920 | 14700 | 4.5 | ||
| 2000 | 0.4 | 0.4 | 2270 | 18600 | 5.0 | ||
| 2500 | 0.4 | 0.4 | 2680 | 21600 | 5.0 |
35kV on-load regulating transformer technical data
| Rated Capacity (KVA) | Connection group symbol | Voltage combination（kV） (H.V.) | Voltage combination（kV） (L.V.) | No-load current % | No-load loss W | Load loses (75℃) W | Short-circuit impedance % |
|---|---|---|---|---|---|---|---|
| 2000 | Yd11 | 35±3×2.5 38.5±3×2.5 | 6.3 10 10.5 | 0.45 | 2300 | 19200 | 6.5 |
| 2500 | Yd11 | 0.45 | 2720 | 20600 | 6.5 | ||
| 3150 | Yd11 | 0.45 | 3230 | 24700 | 7.0 | ||
| 4000 | Yd11 | 0.45 | 3870 | 29100 | 7.0 | ||
| 5000 | Yd11 | 0.45 | 4640 | 34200 | 7.0 | ||
| 6300 | Yd11 | 0.45 | 5630 | 36700 | 8.0 | ||
| 8000 | YNd11 | 0.35 | 7870 | 40600 | 8.0 | ||
| 10000 | YNd11 | 0.35 | 9280 | 48000 | 8.0 | ||
| 12500 | YNd11 | 0.30 | 10900 | 56800 | 8.0 | ||
| 16000 | YNd11 | 0.30 | 13100 | 70500 | 8.0 | ||
| 20000 | YNd11 | 0.30 | 15500 | 82700 | 8.0 |
