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High-Efficiency SCB10 10kV Nanocrystalline Alloy Dry-Type Transformer from China Suppliers & Factory
Product Features
This series of transformers features an optimized structural design, combining advanced materials and manufacturing processes to deliver outstanding electrical performance, mechanical stability, and adaptability. It is widely suitable for industrial production, commercial buildings, municipal engineering, and similar applications. Below is an overview of its core structural components and optional configurations.
1
Iron Core
The core is wound from high-quality nanocrystalline alloy strips, known for ultra-high magnetic permeability, low coercivity, and minimal core loss. This reduces no-load loss by over 30% compared to traditional silicon steel. Available in three-phase five-column or three-phase three-column wound designs, the rectangular cross-section is optimized through electromagnetic simulation to ensure uniform magnetic flux distribution, reduce leakage, and lower losses. The wound structure enhances mechanical strength, suppressing vibration and noise.
2
High-Voltage Coil
The high-voltage coil adopts a segmented cylindrical structure for even voltage distribution and improved withstand capacity. It is manufactured using vacuum casting with thin insulation and hermetic sealing, which enhances heat dissipation and protects against moisture and dust. For high-capacity windings, axial air ducts are integrated to promote airflow and prevent local overheating. This results in high voltage withstand performance, extremely low partial discharge (≤5pC), excellent dust resistance, and efficient cooling.
3
Low-Voltage Coil
The low-voltage coil uses a foil structure with DMD prepreg hot-pressed between layers, effectively resolving ampere-turn imbalance common in traditional wire-wound designs. The foil ensures uniform current distribution, reduces localized losses, and eliminates axial winding angles, significantly lowering axial electromagnetic forces during short circuits. The hot-pressed process enhances interlayer bonding, forming a solid, mechanically stable coil with low additional loss.
4
Outer Casing & Configuration
The enclosure can be customized in materials such as ordinary steel (cost-effective for indoor use), aluminum alloy (lightweight, corrosion-resistant for outdoor/humid environments), or stainless steel (durable for harsh conditions like coastal or chemical plants). Protection levels include IP20 (indoor, blocks solids >12.5mm) and IP23 (outdoor/semi-outdoor, protects against angled water ingress). High- and low-voltage busbar interfaces can be flexibly configured to match user layout needs, simplifying installation and improving system compatibility.
Product Specifications
| Rated Capacity (KVA) | Connection Group Label | Voltage Combination (KV) | No-Load Current (%) | Load Loss (W) | No-Load Loss (W) | Short-Circuit Impedance (%) | ||
| High Voltage (H.V.) | L.V. Tap Range | Low Voltage (L.V.) | ||||||
| 30 | Dyn11 | 6 / 6.3 / 10 / 10.5 / 11 | ±5% / ±2×2.5% | 0.4 | 1.6 | 710 | 70 | 4.0 |
| 50 | 1.4 | 1000 | 90 | |||||
| 80 | 1.3 | 1380 | 120 | |||||
| 100 | 1.2 | 1570 | 130 | |||||
| 125 | 1.1 | 1850 | 150 | |||||
| 160 | 1.1 | 2130 | 170 | |||||
| 200 | 1.0 | 2530 | 200 | |||||
| 250 | 1.0 | 2760 | 230 | |||||
| 315 | 0.9 | 3470 | 280 | |||||
| 400 | 0.8 | 3990 | 310 | |||||
| 500 | 0.8 | 4880 | 360 | |||||
| 630 | 0.7 | 5880 | 420 | |||||
| 630 | 0.7 | 5960 | 410 | 6.0 | ||||
| 800 | 0.7 | 6960 | 480 | |||||
| 1000 | 0.6 | 8130 | 550 | |||||
| 1250 | 0.6 | 9690 | 650 | |||||
| 1600 | 0.6 | 11700 | 760 | |||||
| 2000 | 0.5 | 14440 | 1000 | |||||
| 2500 | 0.5 | 17170 | 1200 | |||||
| 1600 | 0.6 | 12900 | 760 | 8.0 | ||||
| 2000 | 0.5 | 15900 | 1000 | |||||
| 2500 | 0.5 | 18890 | 1200 | |||||
Detail Pictures
Frequently Asked Questions
Q
What type of core material is used in the SGBH15-M transformer, and what are its advantages?
The SGBH15-M transformer uses a nanocrystalline alloy strip core, which offers ultra-high magnetic permeability, low coercivity, and minimal core loss. Compared to traditional silicon steel cores, this material reduces no-load loss by over 30%, making it significantly more energy-efficient for long-term operation.
Q
What is the partial discharge level of the high-voltage coil, and how is moisture protection achieved?
The high-voltage coil achieves an extremely low partial discharge level of ≤5pC. Moisture and dust protection is achieved through vacuum casting with thin insulation and hermetic sealing, which also enhances heat dissipation and overall insulation reliability.
Q
What are the available enclosure material options and protection levels for this transformer?
The outer casing can be made from ordinary steel (suitable for cost-effective indoor installations), aluminum alloy (lightweight and corrosion-resistant for outdoor or humid environments), or stainless steel (ideal for harsh conditions such as coastal or chemical plant environments). Available protection levels are IP20 for indoor use and IP23 for outdoor or semi-outdoor applications.
Q
What rated capacity range does this transformer series cover?
This transformer series covers a wide rated capacity range from 30 KVA up to 2500 KVA, with short-circuit impedance options of 4.0%, 6.0%, and 8.0% depending on the capacity, making it suitable for a broad range of industrial and commercial power distribution applications.
Q
Why is a foil structure used for the low-voltage coil instead of a traditional wire-wound design?
The foil structure with DMD prepreg hot-pressing effectively resolves the ampere-turn imbalance common in wire-wound designs. It ensures uniform current distribution, reduces localized losses, eliminates axial winding angles, and significantly lowers axial electromagnetic forces during short circuits, resulting in a mechanically stable and highly reliable coil.
Q
What voltage combinations and tap range configurations are supported?
The transformer supports high voltage inputs of 6 kV, 6.3 kV, 10 kV, 10.5 kV, and 11 kV, with a standard low voltage output of 0.4 kV. The tap range is adjustable at ±5% or ±2×2.5%, and the connection group label is Dyn11, providing flexible configuration to meet various grid and user requirements.