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China SCB10 Indoor Epoxy Resin Dry-Type Transformer - Low Noise, Energy Efficient, Suppliers & Factory
Product Features
This epoxy resin cast dry-type transformer integrates advanced technology and high-quality materials, delivering excellent electrical performance, mechanical stability, and environmental adaptability. It is widely suitable for industrial parks, commercial complexes, municipal infrastructure, high-rise buildings, and similar applications, particularly for installation in load centers with strict requirements for safety, environmental protection, and space utilization.
The product features a differentiated conductor design. The high-voltage winding uses high-conductivity enameled copper wire with a high-temperature-cured insulation layer, offering high dielectric strength and stability. The low-voltage winding is wound with high-purity copper foil. Windings are vacuum-impregnated with imported unfilled epoxy resin, forming a solid, bubble-free structure after curing — ensuring high mechanical strength, resistance to short-circuit forces, and extremely low partial discharge (≤5 pC).
The epoxy resin meets the flame-retardant requirements of GB/T 10217-2018. It is non-flammable, emits no toxic gases, and contains no volatile pollutants, allowing for safe indoor installation without a separate transformer room. The moisture-resistant insulation enables reliable operation in harsh conditions (e.g., 100% humidity, high temperatures, dusty environments), even after intermittent use without drying.
The transformer exhibits strong short-circuit and lightning impulse withstand capability, along with a 120% short-term overload capacity. Its thin insulation layers and conductive materials promote efficient cooling via natural air (AN); an optional forced air (AF) system can increase cooling efficiency by over 30%. The core is made of low-loss silicon steel, reducing no-load and load losses significantly below national standards for enhanced energy savings.
Fully sealed and maintenance-free, it eliminates oil leakage risks. Compared to traditional oil-immersed transformers, its volume and weight are reduced by over 40% and 30%, respectively, allowing flexible installation in compact spaces with minimal foundation work.
Product Specifications
| Rated Capacity (KVA) | No-load Loss (W) | Load Loss (120℃)(W) | Short-circuit Impedance (%) | No-load Current (%) | Sound Level (LPA)(dB) | Weight (kg) |
|---|---|---|---|---|---|---|
| 30 | 360 | 1050 | 6.5 | 3.0 | 52 | 680 |
| 50 | 440 | 1300 | 2.5 | 53 | 720 | |
| 80 | 510 | 1740 | 2.0 | 55 | 810 | |
| 100 | 650 | 1990 | 1.8 | 56 | 890 | |
| 125 | 750 | 2430 | 1.8 | 58 | 950 | |
| 160 | 850 | 2785 | 1.8 | 58 | 1000 | |
| 200 | 950 | 3040 | 1.8 | 59 | 1260 | |
| 250 | 1070 | 3485 | 1.8 | 59 | 1420 | |
| 315 | 1290 | 3840 | 1.6 | 61 | 1730 | |
| 400 | 1520 | 4960 | 1.6 | 62 | 1840 | |
| 500 | 1750 | 6080 | 1.4 | 63 | 2200 | |
| 630 | 2050 | 7080 | 1.4 | 63 | 2630 | |
| 800 | 2400 | 8400 | 1.2 | 66 | 3260 | |
| 1000 | 2690 | 9660 | 1.0 | 66 | 3990 | |
| 1250 | 3140 | 11695 | 0.8 | 67 | 4470 | |
| 1600 | 3590 | 14210 | 0.8 | 68 | 5570 | |
| 2000 | 4220 | 16730 | 0.7 | 69 | 6410 | |
| 2500 | 4940 | 20035 | 0.7 | 73 | 6930 |
Detail Pictures
Frequently Asked Questions
Q
What is an epoxy resin cast dry-type transformer and where is it typically used?
An epoxy resin cast dry-type transformer uses vacuum-impregnated epoxy resin to encapsulate the windings, forming a solid, moisture-resistant insulation structure without the need for oil. It is widely used in industrial parks, commercial complexes, municipal infrastructure, high-rise buildings, and other applications where safety, environmental protection, and compact installation are required.
Q
What makes the insulation system of this transformer reliable and safe?
The windings are vacuum-impregnated with imported unfilled epoxy resin, resulting in a solid, bubble-free structure after curing. This provides high mechanical strength, excellent resistance to short-circuit forces, and extremely low partial discharge (≤5 pC). The epoxy resin also complies with GB/T 10217-2018 flame-retardant standards — it is non-flammable and emits no toxic gases.
Q
Can this transformer operate in harsh environmental conditions?
Yes. Thanks to its moisture-resistant insulation and specially treated core and clamps, this transformer can operate reliably in harsh environments such as 100% humidity, high temperatures, and dusty conditions. It can even resume normal operation after intermittent use without requiring a drying process.
Q
What cooling methods are available for this transformer?
The standard configuration uses natural air cooling (AN), enabled by the transformer's thin insulation layers and efficient conductive materials. An optional forced air cooling (AF) system is also available, which can increase cooling efficiency by over 30%, making it suitable for higher-load or space-constrained installations.
Q
How does this dry-type transformer compare to traditional oil-immersed transformers in terms of size and maintenance?
Compared to traditional oil-immersed transformers, this dry-type model reduces volume by over 40% and weight by over 30%. It is fully sealed and maintenance-free, eliminating any risk of oil leakage. These advantages allow for flexible installation in compact spaces with minimal foundation requirements, making it ideal for urban and indoor environments.
Q
What capacity range does this transformer series cover, and what is the short-circuit impedance?
This transformer series covers a rated capacity range from 30 KVA to 2500 KVA. The short-circuit impedance is uniformly 6.5% across all capacity ratings in the series, ensuring consistent performance and protection characteristics throughout the product line.