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High-Efficiency Nanocrystalline Alloy Dry-Type Transformer SCBH15-M 10kV from China Suppliers and 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 (FAQ)
Q
What material is used for the iron core, and what are its advantages?
The iron core is wound from high-quality nanocrystalline alloy strips, which offer 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%, resulting in significantly improved energy efficiency and lower operating costs.
Q
What is the partial discharge level of the high-voltage coil?
The high-voltage coil is manufactured using vacuum casting with thin insulation and hermetic sealing, achieving an extremely low partial discharge level of ≤5pC. This ensures excellent insulation performance, high voltage withstand capability, and reliable long-term operation in demanding environments.
Q
What enclosure materials and protection levels are available?
The outer casing can be customized in ordinary steel (for cost-effective indoor use), aluminum alloy (lightweight and corrosion-resistant for outdoor or humid environments), or stainless steel (for harsh conditions such as coastal or chemical plant installations). Protection levels available are IP20 and IP23 to suit various installation scenarios.
Q
What rated capacities are available for this transformer series?
This transformer series covers a wide range of rated capacities from 30 KVA up to 2500 KVA, with short-circuit impedance options of 4.0%, 6.0%, and 8.0% depending on the capacity range. This makes it suitable for a broad spectrum of industrial, commercial, and municipal power distribution applications.
Q
How does the low-voltage foil coil design improve performance?
The foil structure with DMD prepreg hot-pressed between layers ensures uniform current distribution across the winding, effectively eliminating ampere-turn imbalance found in traditional wire-wound designs. It also significantly reduces axial electromagnetic forces during short-circuit events, enhancing the mechanical stability and overall reliability of the transformer.
Q
What voltage combinations and tap range options 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%, providing flexible voltage regulation to meet varying grid and load requirements across different installation sites.