35kV oil-immersed power transformer core is using high quality silicon steel sheet multistage ladder stack-up,surface curing coating paint.It has low-loss,low-voice and other characteristics coil uses a new-type oil-channel structure for the sake of heat dissipation,The structu re is optimized insulation process and more reasonable,what effectively enhances coil scooling capacity and short-circuit impulse capacity to ensure thereliable operation.The wall of the fuel tank uses one shaped bending corrugated structure,which increase the fuel tanks mechanical strength and make the appearance beautiful and generous．
1. Scientific computing tools: the transformer uses advanced electric, magnetic, thermal and mechanical computing software to calculate electro-magnetic field and magnetic flux leakage distributions, to analyze wave processes, and to select reliable insulation margin, thus to guarantee product reliability.
2. Reasonable structural layout: The transformer uses multilevel stepped lap helical structure to reduce the no-load losses and noise. Its core is supported by inside rods,and its winding uses cardboard tubes to enhance short circuits withstand capacity,we also uses baffle plate to direct the oil flow for reduction of winding temperature rise. Heterotypic radiators are applied to improve the cooling centers for reduction of oil temperature rise. All internal insulating parts and metal structural parts have round processed for reduction of partial discharge.
3. Advanced technology: Its core is automatically cut with high precision and few burrs. It works without folding the upper yoke, with surface coated double H curing adhesive and fastened. We have vertical winding machine with digital control tension device. Its active part adopts phase-assembly technology, and the lead is wholly pre-fabricated. Automatic control of Kerosene Vapor-phase drying process is used.
4. Perfect quality guarantee system: The company strictly controls the quality of products according to ISO19001 standard.
5. To meet the client's needs, we can provide products of other voltage ratios, Vector Groups, and rated capacities, as listed in the table.
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35kV Three-winding Double-winding No Excitation Regulating Distribution Transformer
|
No-load Loss |
Full-load Loss |
No-load Current ( percent ) | ||||||
| 50 |
35 38.5
|
±2*2.5 ±5 |
0.4 |
Dyn11 Yyn0 |
0.16 | 1.20/1.14 | 6.5 | 1.3 |
| 100 | 0.23 | 2.01/1.19 | 1.1 | |||||
| 125 |
0.27 |
2.37/2.26 | 1.1 | |||||
| 160 | 0.28 | 2.82/2.68 | 1.0 | |||||
| 200 | 0.34 | 3.32/3.16 | 1.0 | |||||
| 250 | 0.40 | 3.95/3.76 | 0.95 | |||||
| 315 | 0.48 | 4.75/4.53 | 0.95 | |||||
| 400 | 0.58 | 5.74/5.47 | 0.85 | |||||
| 500 | 0.68 | 6.91/6.58 | 0.85 | |||||
| 630 | 0.83 | 7.86 | 0.65 | |||||
| 800 | 0.98 | 9.40 | 0.65 | |||||
| 1000 | 1.15 | 11.5 | 0.65 | |||||
| 1250 | 1.40 | 13.9 | 0.60 | |||||
| 1600 | 1.69 | 16.6 | 0.60 | |||||
| 2000 | 1.99 | 19.7 | 0.55 | |||||
| 2500 | 2.36 | 23.2 | 0.55 | |||||
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