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China SCB13 10kV Epoxy Resin Dry-Type Transformer Factory - Forced Air Cooling & Overload Capacity Suppliers
Products 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 | 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
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Q1 What is a dry-type transformer and how does it differ from an oil-immersed transformer?
A dry-type transformer uses air or resin as the cooling and insulation medium instead of oil. Unlike oil-immersed transformers, dry-type units are flame-retardant, require no oil maintenance, and produce no risk of oil leakage or fire — making them ideal for indoor, urban, and environmentally sensitive installations.
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Q2 How much more energy-efficient is the SCB13 series compared to earlier models?
The SCB13 series achieves a no-load loss reduction of over 20% compared to the traditional SC(B)11 series. This is accomplished through a low-loss oriented silicon steel core that minimizes hysteresis and eddy current losses, along with high-conductivity copper coils that significantly cut load loss — resulting in measurable long-term electricity savings.
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Q3 Is this transformer suitable for noise-sensitive environments like hospitals or residential buildings?
Yes. The SCB13 transformer operates at noise levels 10–15 decibels lower than the JB/T10088-1999 professional standard requirement. Its low-noise design — featuring high-temperature annealed cores, optimized winding tension, and vibration-damping rubber pads — makes it well suited for deployment in hospitals, residential communities, schools, and other noise-sensitive settings.
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Q4 What does a partial discharge level of under 5pC mean for transformer reliability?
Partial discharge is a key indicator of insulation quality. A level below 5pC indicates an extremely dense and uniform insulation structure with minimal internal voids or defects. This translates to longer insulation lifespan, lower risk of insulation breakdown, and enhanced operational reliability — particularly in high-voltage or continuous-duty applications.
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Q5 What safety features protect against fire or explosion risks?
The vacuum-pressure cast resin coils form a fully encapsulated insulation layer that is inherently flame-retardant and explosion-proof. The glass fiber windings are self-extinguishing, and the insulation structure prevents arc formation even under short-circuit conditions. Additionally, the resin material does not emit toxic gases at elevated temperatures, protecting both personnel and the surrounding environment.
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Q6 What capacity range is available for the SCB13-10kV dry-type transformer?
The SCB13-10kV series covers a wide capacity range from 30 KVA up to 2500 KVA, with short-circuit impedance values of 4% (for units up to 630 KVA) and 4.5% (for units from 630 KVA to 2500 KVA). This broad selection ensures suitability for a diverse range of industrial, commercial, and municipal power distribution applications.