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China Suppliers Factory Epoxy Resin Dry-Type Transformer SCB13 10kV with Forced Air Cooling and Continuous Overload Capacity

The SC(B)13 dry-type power transformer is an essential solution for various applications including partial lighting, high-rise buildings, airports, docks, and CNC machinery. Unlike traditional transformers, dry-type transformers do not use insulating oil for their iron cores and windings, making them a safer option. Our China-based factory offers advanced cooling methods such as Air Natural Cooling (AN) and Air Forced Cooling (AF), With Air Natural Cooling, the transformer can efficiently operate at full capacity for extended periods. The Air Forced Cooling option allows for a remarkable 50% increase in output capacity, making it ideal for intermittent overload or emergency operations. However, it is important to note that prolonged operation under continuous overload can lead to increased load losses and resistance voltage, which results in an uneconomical operating state, As a leading supplier in the industry, we ensure that our SC(B)13 dry-type power transformers deliver reliability and performance, meeting the demands of modern infrastructure

    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 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
    SCB13-10kv (1)
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    SCB13-10kv (7)
    SCB13-10kv (8)
    Frequently Asked Questions
    QWhat does SCB13-10kV mean and what voltage range does this transformer support?
    The SCB13-10kV designation refers to a three-phase dry-type resin-insulated transformer of the 13th generation design, rated for a primary voltage of 10kV. It is designed for medium-voltage power distribution networks and can be configured with various secondary voltage outputs to suit different application requirements.
    QHow much energy can the SCB13 save compared to older transformer models?
    The SCB13 series achieves a no-load loss reduction of over 20% compared to the traditional SC(B)11 series. Thanks to its low-loss oriented silicon steel core and high-conductivity copper windings, it significantly reduces both no-load and load losses, resulting in lower electricity costs over its operational lifetime.
    QIs this transformer suitable for installation in noise-sensitive locations such as hospitals or residential buildings?
    Yes. The SCB13-10kV operates at noise levels 10–15 dB below the JB/T10088-1999 professional standard. Its low-noise design — including annealed cores, optimized winding tension, and vibration-damping rubber pads — makes it well-suited for hospitals, schools, residential complexes, and other noise-sensitive environments.
    QWhat is partial discharge and why is a level under 5pC important?
    Partial discharge (PD) refers to localized electrical discharges within the insulation that do not fully bridge the conductors. High PD levels degrade insulation over time and can lead to transformer failure. A PD level below 5pC — as achieved by the SCB13 — indicates excellent insulation integrity, greatly extending the transformer's service life and reliability.
    QWhat safety certifications or standards does this dry-type transformer comply with?
    The SCB13-10kV is designed and manufactured in compliance with national energy-saving standards and the professional standard JB/T10088-1999. Its vacuum-pressure cast resin insulation meets flame-retardant and explosion-proof requirements, and the materials used are verified to emit no toxic gases under high-temperature conditions, ensuring both operator safety and environmental compliance.
    QWhat capacity range is available and which applications is this transformer best suited for?
    The SCB13-10kV is available in a wide capacity range from 30 KVA up to 2500 KVA, covering a broad spectrum of power distribution needs. It is ideal for industrial plants, commercial buildings, data centers, hospitals, municipal infrastructure, and any application requiring reliable, efficient, and environmentally safe power distribution.