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China Suppliers Factory Oil-Immersed Voltage Regulating 10kV 500 kVA Outdoor Power Distribution Transformer
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 combination(Kv) | no-load current(%) | load loss(T) | no-load loss(T) | short circuit impedance(%) | ||
| (H.V.) | High-voltage tapping range | (L.V.) | ||||||
| 50 | Dyn11 Yyn0 |
35 38.5 |
± 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
Frequently Asked Questions
Q1: How does this transformer achieve ultra-low no-load loss?
It utilizes high magnetic conductivity 0.20mm ultra-thin grain-oriented cold-rolled silicon steel sheets combined with a 45° full inclined seam holeless stacking process to minimize magnetic hysteresis and leakage loss.
Q2: What materials are used for the transformer windings?
The windings are constructed from high-purity oxygen-free copper electromagnetic wire, ensuring low resistance and high efficiency through specialized surface treatments that eliminate burrs.
Q3: Can the voltage be regulated while the load is active?
Yes, the unit is equipped with a high-precision on-load voltage regulating switch that allows for smooth tap position switching within 0 to 100% of the rated load.
Q4: What is the typical accuracy of the voltage regulation?
The transformer provides a voltage regulation accuracy of ±2.5%, allowing it to maintain precise output levels even during power grid fluctuations.
Q5: What are the energy-saving benefits compared to older models?
Compared to the traditional S9 series, these products reduce average no-load loss by over 30% and no-load current by 70%-85%, making them ideal for long-term light-load operations.
Q6: Is this transformer suitable for large-capacity industrial applications?
Absolutely. With rated capacities available up to 2500KVA and optimized winding structures (like composite wires), it is designed for efficient high-capacity power transmission.