China Suppliers Factory Indoor Epoxy Resin Dry-Type Transformer SCB10 10kV Class 1 Energy Efficiency Low Noise
Product Features
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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.
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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, providing ample cross-section, enhanced current capacity, and optimized heat dissipation. The windings are vacuum-impregnated with imported unfilled epoxy resin, forming a solid, bubble-free structure after curing. This ensures high mechanical strength, resistance to short-circuit forces, and extremely low partial discharge (≤5 pC).
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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 and specially treated core and clamps enable reliable operation in harsh conditions (e.g., 100% humidity, high temperatures, dusty environments), even after intermittent use without drying.
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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.
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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 used?
An epoxy resin cast dry-type transformer is a type of power transformer where the windings are encapsulated in solid epoxy resin instead of being immersed in oil. It is widely used in industrial parks, commercial complexes, municipal infrastructure, high-rise buildings, and other environments with strict requirements for safety, environmental protection, and space efficiency.
Q
What makes the insulation system of this transformer reliable?
The windings are vacuum-impregnated with imported unfilled epoxy resin, which cures into a solid, bubble-free structure. This provides high mechanical strength, excellent resistance to short-circuit forces, and extremely low partial discharge levels of ≤5 pC, ensuring long-term insulation reliability.
Q
Is this transformer safe for indoor installation without a dedicated transformer room?
Yes. The epoxy resin used complies with the flame-retardant requirements of GB/T 10217-2018. The transformer is non-flammable, emits no toxic gases, and contains no volatile pollutants, making it safe for indoor installation without requiring a separate transformer room.
Q
What cooling methods are available for this transformer?
The standard configuration uses natural air cooling (AN), which is made efficient by the transformer's thin insulation layers and 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 demands.
Q
How does this transformer compare to traditional oil-immersed transformers in terms of size and maintenance?
Compared to traditional oil-immersed transformers, this dry-type transformer reduces volume by over 40% and weight by over 30%. It is fully sealed and maintenance-free, eliminating oil leakage risks and allowing flexible installation in compact spaces with minimal foundation requirements.
Q
Can this transformer operate reliably in harsh environmental conditions?
Yes. Thanks to its moisture-resistant insulation and specially treated core and clamps, this transformer can operate reliably in harsh conditions including 100% humidity, high temperatures, and dusty environments. It can even resume normal operation after intermittent use without the need for drying procedures.




