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Compact 10kV Epoxy Resin Dry-Type Transformer SCB11 - Space-Saving Design by China Suppliers & Factory
Product Features
Overview
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 Design
The low-voltage coil is 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 Casting
The high-voltage coil is produced using vacuum epoxy resin casting technology. The process is conducted in a high-vacuum environment where high-performance epoxy resin is injected into the winding gaps, completely eliminating bubbles, impurities, and moisture. After constant-temperature curing, the coil forms a solid cylindrical structure with extremely high mechanical strength, capable of withstanding electromagnetic forces from short-circuit faults. This results in a very low partial discharge level (≤5 pC), which reduces insulation aging and significantly improves operational reliability and service life. The design also provides high short-circuit and lightning impulse withstand capabilities, ensuring resilience in complex grid environments.
Heat Dissipation & Cooling
Heat dissipation performance is optimized through thin-layer epoxy insulation on the coil's inner and outer surfaces and the excellent thermal conductivity of the copper and resin. The default cooling method is air natural cooling (AN), which relies on convection and radiation, offering simplicity and low energy consumption. For applications with high-load density or requiring short-term overload capacity, an optional air forced cooling (AF) system can be equipped. Composed of efficient fans, temperature sensors, and a control module, the AF system activates automatically when temperature thresholds are exceeded, enhancing cooling efficiency by over 30% and ensuring safe operation under peak loads.
Protective Enclosure
The product is equipped with a high-performance protective enclosure, constructed from stainless steel or aluminum alloy. It offers 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?
The SCB11-10KV dry-type transformer achieves a very low partial discharge level of ≤5 pC, thanks to its vacuum epoxy resin casting technology. This significantly reduces insulation aging and improves long-term operational reliability and service life.
Q
What cooling methods are available for this transformer series?
The standard cooling method is Air Natural (AN) cooling, which uses convection and radiation — simple and energy-efficient. For high-load or overload applications, an optional Air Forced (AF) cooling system is available. The AF system includes efficient fans, temperature sensors, and a control module that activates automatically, improving cooling efficiency by over 30%.
Q
What protection level does the enclosure of this dry-type transformer offer?
The transformer is equipped with a high-performance enclosure made from stainless steel or aluminum alloy, offering a protection level up to IP23. This makes it suitable for harsh environments including high humidity, dusty conditions, and outdoor weather exposure.
Q
What capacity range does the SCB11-10KV transformer series cover?
The SCB11-10KV series covers a wide rated capacity range from 30 KVA up to 2500 KVA, with short-circuit impedance values of 4% (for capacities up to 630 KVA) and 4.5% (for capacities from 630 KVA to 2500 KVA), making it suitable for a broad range of industrial and commercial applications.
Q
Where can the SCB11-10KV dry-type transformer be applied?
This transformer series is widely applicable across industrial parks, commercial complexes, municipal infrastructure, outdoor substations, and other scenarios requiring reliable power distribution. Its robust enclosure and environmental adaptability make it ideal for both indoor and outdoor installations under various working conditions.
Q
Why is vacuum epoxy resin casting used for the high-voltage coil?
Vacuum epoxy resin casting is used to completely eliminate bubbles, impurities, and moisture from the winding gaps. After constant-temperature curing, the coil forms a solid, high-strength cylindrical structure capable of withstanding short-circuit electromagnetic forces. This process ensures superior insulation integrity, low partial discharge, and enhanced resistance to short-circuit and lightning impulse stresses.