15515673159
Oil-Immersed Non-excited Voltage Regulating 10 Kv 500 Kva Outdoor Power Distribution Transformer
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Product FEATURES
1.Ultra-low no-load loss, a green and energy-saving benchmark
The key lies in using high magnetic conductivity grain-oriented cold-rolled silicon steel sheets, preferably in the ultra-thin 0.20mm specification. Their magnetic permeability can reach 1.93T, with the easily magnetized structure accounting for over 95%. This reduces magnetic hysteresis loss from the source. During production, the 45° full inclined seam holeless stacking process and the horizontal five-step laminating technology are adopted, combined with the core column epoxy glass tape binding reinforcement. This minimizes the magnetic circuit gap and leakage loss to the greatest extent. Compared with traditional S9 series products, the average no-load loss is reduced by more than 30%, the no-load current decreases by 70%-85%, and even during long-term light-load operation, significant energy savings can be achieved.
2.Low load loss, efficient power transmission
The windings are made of high-purity oxygen-free copper electromagnetic wire, which undergoes special surface treatment to ensure the smoothness and absence of burrs on the wire, effectively reducing the resistance and eddy current losses. According to the capacity requirements, multi-layer cylindrical, intertwined continuous, or inner shielded winding structures are adopted. For large-capacity products, composite wires are also used. By optimizing the arrangement of the wire buns and the distribution of ampere-turns, the winding current is evenly distributed, reducing local overheating and concentrated losses.
3.Load-carrying non-stop voltage regulation, with stable and controllable voltage
Equipped with a high-precision on-load voltage regulating switch, a separate voltage regulating winding is specially designed. The axial dimensions and magnetic center of each winding are strictly controlled to ensure stable electromagnetic balance during the voltage regulation process. It can smoothly switch the tap position within the range of 0 to 100% of the rated load. The voltage regulation accuracy is ±2.5%, and it can quickly respond to voltage fluctuations in the power grid and precisely maintain the output voltage within the set range.
Product Specifications
| rated capacity(KVA) | connection group lable | voltage conbination(Kv) | no-loadcurrent(%) | loadloss(T) | no-load loss(T) | short circuit impedance(%) | ||
| (H.V.) | High-voltage tapping range | (L.V.) | ||||||
| 50 | Dyn11
Yyn0 |
35 38.5 |
士 5% ±2X2.5% |
0.4 | 1. 30 | 2100/1140 | 130 | 6.5 |
| 100 | 1. 10 | 2010/1910 | 185 | |||||
| 125 | 1.10 | 2370/2260 | 215 | |||||
| 160 | 1.00 | 2820/2680 | 225 | |||||
| 200 | 1.00 | 3320/3160 | 270 | |||||
| 250 | 0. 95 | 3950/3760 | 320 | |||||
| 315 | 0. 95 | 4750/4530 | 385 | |||||
| 400 | 0.85 | 5740/5470 | 465 | |||||
| 500 | 0.85 | 6910/6580 | 545 | |||||
| 630 | 0.65 | 7860 | 665 | |||||
| 800 | 0.65 | 9400 | 785 | |||||
| 1000 | 0.65 | 11500 | 920 | |||||
| 1250 | 0.60 | 13900 | 1120 | |||||
| 1600 | 0.60 | 16600 | 1350 | |||||
| 2000 | 0. 55 | 19700 | 1590 | |||||
| 2500 | 0. 55 | 23200 | 1890 | |||||
detail pictures
FAQ
Find answers to the most common questions about specifications, voltage regulation, installation, customization, testing and quotation requirements for this transformer.
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What is the rated capacity of this transformer?
This transformer has a rated capacity of 500kVA and is designed for medium-voltage power distribution applications. Whether 500kVA is suitable for your project depends on the total connected load, maximum demand, starting current, load type, and future expansion requirements.
What are the standard primary and secondary voltages?
This model is designed for a 10kV primary power system. The secondary voltage can be configured according to the project requirements, such as common low-voltage distribution voltages. Please provide your required input and output voltage when requesting a quotation.
What does non-excited voltage regulation mean?
Non-excited voltage regulation means that the transformer tap position can only be adjusted when the transformer is disconnected from the power supply and completely de-energized. The tap setting is used to compensate for variations in the incoming voltage and maintain the required secondary voltage.
What tap range can be provided?
The tap range can be designed according to the project specification. Common tap arrangements can be provided, but the exact tap range and number of tap positions should be confirmed based on the customer's electrical system and technical requirements.
Is this transformer suitable for outdoor installation?
Yes. This transformer is designed for outdoor power distribution applications. However, environmental conditions such as ambient temperature, altitude, humidity, pollution level, wind conditions, and installation location should be confirmed before production.
What vector group can be supplied?
The vector group can be selected according to the electrical system design. Common connection groups can be provided, but the final configuration should be confirmed based on the single-line diagram, load characteristics, grounding method, and project requirements.
Can the short-circuit impedance be customized?
Yes. The short-circuit impedance can be designed according to the project specification within the applicable design range. Impedance is an important parameter because it affects short-circuit current, voltage drop, and system protection coordination.