| Application: | Power, Electronic, Lighting, Rectifier, Audio |
|---|---|
| Phase: | Three |
| Core: | Core-type Transformer |
| Cooling Method: | Oil-immersed Type Transformer |
| Winding Type: | Two-winding Transformer |
| Certification: | ISO9001-2000, UL, ISO9001, CCC |
| Customization: |
|---|
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Audited Supplier Product Description
As the most widely used power facility, power transformers have a wide variety of types and are of great significance to energy conservation and emission reduction. The S13 fully-sealed oil-immersed power transformer is currently the main selection product for power distribution equipment, with significant energy-saving effects. At present, mainstream distribution transformers generally use S13 laminated core power transformers. It adopts a fully oil-filled sealed type, no oil conservator, and a corrugated sheet box structure. The volume of the transformer changes due to changes in temperature and load, which is completely adjusted by the corrugated oil tank. Its no-load loss is much lower than that of S9, and it is resistant to lightning impact It has strong short-circuit resistance, obvious energy-saving effect, and reduces the overall size of the transformer.
The S13 transformer is made of high-permeability oriented silicon steel sheet with a thickness of 0.27-0.30mm and a unit iron loss of 1w/kg, while the new S9 type is an ordinary silicon steel sheet with a thickness of 0.30-0.35mm and a unit iron loss of 1.20 -1.55w/kg. The S13 distribution transformers produced by our company all use 30P series high-permeability oriented silicon steel, using foil-wound coils and new insulating materials and processes. The product is resistant to high temperature, impact, and fully sealed structure design to ensure the stability of transformer oil quality It prolongs the maintenance cycle. At the same time, the integral fuel tank composed of corrugated fin radiator is produced by phosphating and multi-layer anti-rust spraying process, which has good weather resistance.
2.Main Functions And Features
1. The transformer core is made of imported high-quality cold-rolled silicon steel sheet, which greatly reduces no-load loss and no-load current. The core is tightly bound to ensure the compactness and reduce noise.
2. The high and low voltage windings are made of oxygen-free copper. The low voltage winding of 500KVA and below is of double-layer cylinder structure, of 630kVA and above adopt double helix or four helix structure. High-voltage winding adopts multi-layer cylinder structure.
3. Dyn11 is used in the transformer connection group to reduce the influence of harmonics on the power grid and improve the quality of power supply.
4. The transformer is a fully sealed structure, with three coats of primer and one coat of finish paint applied on the inner and outer surfaces. The product is salt fog proof, moisture proof and fungus-proofing, beautiful, durable and reliable
5. The measured noise value is lower than the standard and maintenance free under normal operation.
3.Transformer Structure
Technical parameters of 33kV oil-immersed transformer
| Rated Capacity (kVA) |
H.V. winding (kV) |
Tapping range of high voltage (%) |
L.V. winding (kV) |
Vector Group | No-Load Loss(W) |
Load Loss (W) |
No-load current (%) |
Short-circuit impedance (%) |
| 50 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500 |
33 |
±5% ±2x2.5% |
0.4 |
Dyn11 Yyn0 |
130 185 215 225 270 320 385 465 545 665 785 920 1120 1350 1590 1890 |
1200/1140 2010/1910 2370/2260 2820/2680 3320/3160 3950/3760 4750/4530 5740/5470 6910/6580 7860 9400 11500 13900 16600 19700 23200 |
1.3 1.10 1.10 1.00 1.00 0.95 0.95 0.85 0.85 0.65 0.65 0.65 0.6 0.6 0.55 0.55 |
6.5 |
| Rated Capacity (kVA) |
Type | Vector Group | No-Load loss (kW) |
Load loss (kW) | Short-circuit impedance (%) |
| 30 | S13-30/10 | Y,yn0 | 0.08 | 0.63/0.6 | 4 |
| 50 | S13-50/10 | 0.1 | 0.91/0.87 | ||
| 80 | S13-80/10 | 0.13 | 1.31/1.25 | ||
| 100 | S13-100/10 | 0.15 | 1.58/1.5 | ||
| 125 | S13-125/10 | 0.17 | 1.89/1.8 | ||
| 160 | S13-160/10 | 0.2 | 2.31/2.2 | ||
| 200 | S13-200/10 | 0.24 | 2.73/2.6 | ||
| 250 | S13-250/10 | 0.29 | 3.2/3.05 | ||
| 315 | S13-315/10 | 0.34 | 3.83/3.65 | ||
| 400 | S13-400/10 | 0.41 | 4.52/4.3 | ||
| 500 | S13-500/10 | 0.48 | 5.41/5.1 | ||
| 630 | S13-630/10 | 0.57 | 6.2 | 4.5 | |
| 800 | S13-800/10 | 0.7 | 7.5 | ||
| 1000 | S13-1000/10 | 0.83 | 10.3 | ||
| 1250 | S13-1250/10 | 0.97 | 12 | ||
| 1600 | S13-1600/10 | 1.17 | 14.5 |
Note:The above are some product technical parameters, if you have any questions, please contact us
Conditions of Use
1.The maximum ambient air temperature shall not exceed 40°C, and the minimum shall not below -25°C;
2.The altitude shall not exceed 1000m. If special customized transformers and low-voltage components are used, the altitude can reach 4,000m;
3.The vertical inclination is no more than 5°, and no violent vibration and impact;
4.The air humidity is not more than 90% (25°C);
5.No gas and conductive dust that will seriously affect the insulation of transformer,no explosion hazard and corrosion of electrical components;
6.Outdoor wind speed shall not exceed 35m/s;
7.If service conditions beyond the above, specially customized product is available.
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