transformer
Oil -Immersed Low-Loss Power Transformer
Series oil-immersed power transformer core selection of high quality high conductive magnetic grain oriented silicon steel sheet, flat stacked core structure, step type multistage joint, small no-l...
DESCRIPTION
Series oil-immersed power transformer core selection of high quality high conductive magnetic grain oriented silicon steel sheet, flat stacked core structure, step type multistage joint, small no-load loss, low noise. The finished product adopts the vacuum oil injection process. The box oil storage tank adopts a fully sealed structure, the insulating oil and insulation medium do not contact with the air, and the oil change is not needed under normal operation, the maintenance cost of the transformer is reduced and the service life of the transformer is extended. This series of products have a beautiful appearance, excellent performance, maintenance-free, reasonable structure, advanced technology, stable and reliable product performance and other characteristics, has been widely used in the power grid.
Performance Characteristics
1. The high-pressure winding all adopts a multi-layer cylindrical structure, which improves the impact distribution of the winding.
2. The low-pressure winding adopts cylinder or spiral structure, with high mechanical strength, Ann turn balance, and good short-circuit resistance of the product.
3. The positioning structure is added to the device body, so that no displacement is generated during transportation. Meanwhile, all fasteners are equipped with fastening nuts to ensure that the fasteners are not loose in the long-term operation process and meet the requirements of not lifting the core.
4. Spray primer and finish paint after oil removal, embroidery removal and phosphorization treatment, which can hide the special use requirements of metallurgy, petrochemical system and wet and dirty areas.
5. Select the components, adopt the fully sealed transformer oil tank, with the pressure release valve, signal thermometer, gas relay installed according to the standard requirements, to ensure the safe operation of the transformer.
6. This series of products are beautiful in appearance, small in size, can reduce the installation area, is ideal maintenance free products.
Technical parameters of on-load voltage regulating power transformer of 35kv class 2000kva~31500kva
| Rate Capacity kVA | Voltage Combination and Tap Range | Connect Symbol | No-load
losses kW |
Load
Losses kW |
No-load
Current % |
Short Circuit Impendence % | ||
| HV kV | HV Tap Range % | LV kV | ||||||
| 2000 | 35 | ± 3× 2.5 | 6.3 10.5 | Yd11 | 2.30 | 19.2 | 0.5 | 6.5 |
| 2500 | 2.72 | 20.6 | 0.5 | |||||
| 3150 | 35 38.5 | 3.23 | 24.7 | 0.5 | 7.0 | |||
| 4000 | 3.87 | 29.1 | 0.5 | |||||
| 5000 | 4.64 | 34.2 | 0.5 | |||||
| 6300 | 5.63 | 36.7 | 0.68 |
8 |
||||
| 8000 | 35 38.5 | 6.3 6.6 10.5 | YNd11 | 7.87 | 40.6 | 0.6 | ||
| 10000 | 9.28 | 48.0 | 0.6 | |||||
| 12500 | 10.9 | 56.8 | 0.56 | |||||
| 16000 | 13.1 | 70.3 | 0.54 | |||||
| 20000 | 15.5 | 82.7 | 0.5 | |||||
| 25000 | 18.3 | 97.8 | 0.5 | 10 | ||||
| 31500 | 21.8 | 116.0 | 0.5 | |||||
| 40000 | 26.2 | 139.0 | 0.4 | |||||
