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China SCB13 10kV Epoxy Resin Dry-Type Transformer Factory Suppliers with Forced Air Cooling and Continuous Overload Capacity
Product Description
This dry-type transformer utilizes advanced material technology and precision manufacturing processes, focusing on optimizing core performance indicators such as energy consumption, noise, insulation, and safety. It meets the high demands of modern power distribution systems for efficiency, environmental protection, and stability, making it widely suitable for industrial plants, commercial buildings, municipal infrastructure, and similar applications. Below is an overview of its four core advantages.
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1. Low Loss
The product delivers exceptional energy-saving performance. Its no-load loss is reduced by over 20% compared to traditional SC(B)11 series transformers. The low-loss oriented silicon steel core minimizes hysteresis and eddy current losses, while high-conductivity copper coils reduce load loss. This not only lowers long-term electricity costs but also meets national energy-saving standards. The integral insulation and oil-free design ensures maintenance-free operation throughout its service life.
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2. Low Noise
Noise levels are 10–15 decibels below the requirements of professional standard JB/T10088-1999. This is achieved through high-temperature annealing of the core to reduce magnetic noise, optimized winding tension for even electromagnetic force distribution, and vibration-damping rubber pads between the core and clamps. The design makes the transformer suitable for noise-sensitive environments such as residential areas and hospitals.
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3. Low Partial Discharge
The transformer achieves an exceptionally low and stable partial discharge level of under 5pC. This is accomplished by using high-performance resin composites prepared via advanced foreign mixing and vacuum film degassing technologies, ensuring material uniformity and eliminating micro-bubbles. Vacuum and pressure casting of both high and low-voltage coils further enhances insulation compactness and reliability.
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4. High Safety & Environmental Protection
The coils are vacuum-pressure cast, forming a dense, fully encapsulated resin insulation that is flame-retardant, explosion-proof, and pollution-free. Materials like the glass fiber used in the windings are self-extinguishing. The robust insulation structure prevents arc generation even during short circuits, eliminating risks of fire or explosion. The resin emits no toxic gases under high temperatures, ensuring operator safety and environmental compliance.
Product Specifications
| Rated Capacity (KVA) | No-load Loss (W) | Load Loss (120℃)(W) | No-load Current (%) | Short-circuit Impedance (%) |
|---|---|---|---|---|
| 30 | 165 | 710 | 1.7 | 0.4 |
| 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
QWhat is the primary advantage of this SCB13 dry-type transformer over the SC(B)11 series?
The SCB13 dry-type transformer achieves a no-load loss reduction of over 20% compared to the traditional SC(B)11 series. This is made possible by the use of low-loss oriented silicon steel cores and high-conductivity copper coils, resulting in significantly lower electricity costs over the transformer's service life while meeting national energy-saving standards.
QIs this transformer suitable for noise-sensitive environments such as hospitals or residential buildings?
Yes. The transformer is specifically engineered for noise-sensitive locations. Its noise level is 10–15 decibels lower than the requirements set by professional standard JB/T10088-1999. Key design measures include high-temperature core annealing, optimized winding tension, and vibration-damping rubber pads between the core and clamps to effectively suppress operational noise.
QWhat rated capacity range does this dry-type transformer cover?
This transformer is available across a wide rated capacity range, from 30 KVA up to 2500 KVA, with short-circuit impedance options of 4% and 4.5% depending on the capacity. This broad range makes it suitable for diverse applications, from small commercial facilities to large industrial plants.
QHow does the transformer ensure safety in the event of a short circuit?
The coils undergo vacuum-pressure casting to form a dense, fully encapsulated resin insulation layer. This structure is flame-retardant and explosion-proof, preventing arc generation even under short-circuit conditions. Additionally, materials such as the glass fiber used in windings are self-extinguishing, eliminating the risk of fire or explosion and ensuring safe operation at all times.
QWhat partial discharge level does this transformer achieve, and why does it matter?
The transformer maintains a partial discharge level of under 5pC, which is exceptionally low and stable. Low partial discharge is critical because it directly reflects the quality and uniformity of the insulation system. This is achieved through advanced vacuum film degassing technology and vacuum-pressure casting, which eliminate micro-bubbles and ensure a highly compact, reliable insulation structure.
QDoes this transformer require regular maintenance or oil changes?
No. This is a dry-type transformer featuring an integral insulation and completely oil-free design. The absence of oil means there is no need for oil-related maintenance, leak checks, or oil replacement throughout the transformer's service life. This maintenance-free characteristic significantly reduces the total cost of ownership and simplifies long-term operation management.