15515673159
High Efficiency SCBH15 10kV Nanocrystalline Alloy Dry-Type Transformer - 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 makes the nanocrystalline alloy iron core superior to traditional silicon steel cores?
The nanocrystalline alloy iron core offers ultra-high magnetic permeability, low coercivity, and minimal core loss. Compared to traditional silicon steel, it reduces no-load loss by over 30%, resulting in significantly improved energy efficiency and lower operating costs over the transformer's lifetime.
Q
What is the partial discharge level of the high-voltage coil, and why does it matter?
The high-voltage coil achieves an extremely low partial discharge level of ≤5pC (picocoulombs). Low partial discharge is critical because it indicates superior insulation quality, reducing the risk of insulation degradation, extending the transformer's service life, and ensuring reliable operation in demanding environments.
Q
What enclosure materials and protection levels are available for this transformer series?
The enclosure can be manufactured in ordinary steel (suitable for cost-effective indoor applications), aluminum alloy (lightweight and corrosion-resistant for outdoor or humid environments), or stainless steel (for harsh conditions such as coastal or chemical plant environments). Available protection levels are IP20 (indoor use, blocking solids larger than 12.5mm) and IP23 (outdoor/semi-outdoor use, protecting against angled water ingress).
Q
What rated capacities are available in this transformer series?
This 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 flexibility makes the series suitable for a broad spectrum of industrial, commercial, and municipal applications.
Q
How does the foil structure of the low-voltage coil improve performance compared to traditional wire-wound designs?
The foil structure ensures uniform current distribution across the entire winding cross-section, eliminating axial winding angles and resolving ampere-turn imbalance common in traditional wire-wound coils. This significantly reduces localized losses and axial electromagnetic forces during short-circuit events. The DMD prepreg hot-pressed between layers further enhances interlayer bonding, forming a mechanically stable and reliable coil with low additional losses.
Q
What voltage combinations and tap range options are supported?
The transformer supports high voltage options 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 available at ±5% or ±2×2.5%, providing flexibility to accommodate varying grid voltage conditions and installation requirements. The connection group label is Dyn11.