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China Suppliers SCB11 10kV Compact Epoxy Resin Dry-Type Transformer - Space-Saving Design from Factory
Product Features
This series of dry-type transformers is engineered with advanced manufacturing technologies and high-quality materials, delivering outstanding operational stability, energy efficiency, and environmental adaptability. It is widely applicable in industrial parks, commercial complexes, municipal infrastructure, outdoor substations, and similar scenarios, meeting diverse demands across various working conditions.
Low-Voltage Coil: Wound with high-purity copper foil, featuring uniform thickness, a large conductive cross-section, and excellent thermal conductivity. This design reduces contact resistance between conductors, effectively lowering load loss, while optimizing the internal electromagnetic field distribution to prevent local overheating. Following winding, the coil ends undergo high-temperature curing, integrating insulation materials with the conductors to form a robust, integral structure that enhances mechanical strength and operational stability.
High-Voltage Coil — Vacuum Epoxy Resin Casting: Produced in a high-vacuum environment where high-performance epoxy resin is injected into winding gaps, completely eliminating bubbles, impurities, and moisture. After constant-temperature curing, the coil forms a solid cylindrical structure with extremely high mechanical strength. This results in a very low partial discharge level (≤5 pC), reducing insulation aging and significantly improving operational reliability and service life, with high short-circuit and lightning impulse withstand capabilities.
Heat Dissipation & Cooling: Optimized through thin-layer epoxy insulation on the coil's inner and outer surfaces. The default cooling method is Air Natural Cooling (AN), relying on convection and radiation for simplicity and low energy consumption. An optional Air Forced Cooling (AF) system — composed of efficient fans, temperature sensors, and a control module — activates automatically when temperature thresholds are exceeded, enhancing cooling efficiency by over 30% and ensuring safe operation under peak loads.
Protective Enclosure: Constructed from stainless steel or aluminum alloy, offering excellent corrosion resistance and mechanical strength. Suitable for harsh environments such as humidity, dust, and outdoor weather conditions. The protection level can reach IP23, meeting the needs of various application scenarios.
Product Specifications
| Rated Capacity (KVA) | No-load Loss (W) | Load Loss 120℃ (W) | No-load Current (%) | Short-circuit Impedance (%) |
|---|---|---|---|---|
| 30 | 165 | 710 | 1.7 | 4 |
| 50 | 235 | 1000 | 1.7 | |
| 80 | 320 | 1380 | 1.3 | |
| 100 | 350 | 1570 | 1.3 | |
| 125 | 410 | 1850 | 1.1 | |
| 160 | 475 | 2130 | 1.1 | |
| 200 | 545 | 2530 | 0.9 | |
| 250 | 630 | 2760 | 0.9 | |
| 315 | 770 | 3470 | 0.9 | |
| 400 | 850 | 3990 | 0.9 | |
| 500 | 1015 | 4880 | 0.9 | |
| 630 | 1200 | 5880 | 0.7 | |
| 630 | 1130 | 5960 | 0.7 | 4.5 |
| 800 | 1330 | 6960 | 0.7 | |
| 1000 | 1540 | 8130 | 0.7 | |
| 1250 | 1825 | 9690 | 0.7 | |
| 1600 | 2140 | 11700 | 0.7 | |
| 2000 | 2700 | 14400 | 0.6 | |
| 2500 | 3200 | 17100 | 0.6 |
Detail Pictures
Frequently Asked Questions
Q
What is the partial discharge level of the SCB11-10KV dry-type transformer's high-voltage coil?
The high-voltage coil is manufactured using vacuum epoxy resin casting technology, achieving a very low partial discharge level of ≤5 pC. This significantly reduces insulation aging and improves both operational reliability and service life.
Q
What cooling methods are available for this dry-type transformer series?
The standard cooling method is Air Natural Cooling (AN), which uses convection and radiation — simple and energy-efficient. For high-load density applications or scenarios requiring short-term overload capacity, an optional Air Forced Cooling (AF) system is available. The AF system automatically activates when temperature thresholds are exceeded, improving cooling efficiency by over 30%.
Q
What protection level does the transformer enclosure provide, and what materials are used?
The protective enclosure is constructed from stainless steel or aluminum alloy, providing excellent corrosion resistance and mechanical strength. The protection level can reach IP23, making it suitable for harsh environments including humidity, dust, and outdoor weather conditions.
Q
What are the rated capacity options available for the SCB11-10KV series?
The SCB11-10KV series covers a wide range of rated capacities, from 30 KVA up to 2500 KVA, with short-circuit impedance values of 4% or 4.5% depending on the capacity range, meeting diverse power distribution requirements across industrial and commercial applications.
Q
Why is high-purity copper foil used for the low-voltage coil winding?
High-purity copper foil offers uniform thickness, a large conductive cross-section, and excellent thermal conductivity. This reduces contact resistance between conductors, effectively lowers load loss, and optimizes the internal electromagnetic field distribution to prevent local overheating — ensuring long-term stability and efficiency.
Q
Where can the SCB11-10KV dry-type transformer be applied?
This transformer series is widely applicable across a variety of settings, including industrial parks, commercial complexes, municipal infrastructure, and outdoor substations. Its robust enclosure, high protection rating, and flexible cooling options make it suitable for diverse working conditions and demanding environments.