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China Suppliers Factory Epoxy Resin Cast Dry-Type Transformer SCB11 10kV With Modular Design for Easy Maintenance

Introducing the SG(B)13 non-encapsulated dry-type transformer, a state-of-the-art product designed for optimal performance. Manufactured using the advanced Vacuum Pressure Impregnation (VPI) process, this transformer features an Open Vented Dry Type (OVDT) structure, ensuring excellent thermal management and durability. With an insulation thermal class of Class H, it supports a temperature rating of 180℃, with a reference temperature of 145℃ and a winding temperature rise of 125K. As a leading manufacturer in China, we take pride in supplying high-quality dry-type transformers directly from our factory to meet your industrial needs. Choose us for reliable and efficient transformer solutions!

    Product Features
    🔥
    Flame Retardant & Non-Toxic Insulation
    ⚡
    Partial Discharge < 5pC
    🏗️
    Vacuum Pressure Impregnation Technology
    🛡️
    Long-Term Full-Load Stable Operation
    This series of transformers takes safety and reliability as the core design principles, integrating high-performance insulating materials, sophisticated coil structures and advanced manufacturing processes. It can stably operate in complex and harsh working environments, and is widely trusted in fields with high safety and stability requirements.
    1
    Safety Good Safety Performance: The transformer adopts high-quality environmentally friendly insulating materials, which are carefully selected and strictly tested to ensure that the content of combustible components is minimized. These insulating materials have multiple safety characteristics such as non-toxicity, self-extinguishing, flame retardancy and fire resistance, fully complying with international environmental protection and safety standards. In the event of accidental open fire combustion, the insulating materials will not release toxic or harmful gases, and the smoke production is almost negligible, effectively avoiding secondary hazards such as air pollution and personnel poisoning caused by smoke and toxic gases.
    2
    Application This outstanding safety performance makes the transformer particularly suitable for key areas with high fire protection requirements and large load demands. Typical application scenarios include high-rise buildings, where the dense population and complex pipeline layout put forward strict requirements on fire safety; airports and subways, which are important transportation hubs with large passenger flow and high reliability requirements; metallurgy and petrochemical industries, where the working environment is harsh and flammable and explosive substances are present, requiring equipment to have excellent flame retardancy and explosion-proof performance; as well as large shopping malls, hospitals and other public places with high pedestrian flow and high fire safety standards. In these scenarios, the transformer can effectively reduce fire risks and ensure the safety of personnel and property.
    3
    Technology The core manufacturing process adopts vacuum pressure-impregnation technology. The windings are subjected to strict vacuum pressure-impregnation and curing treatment, which ensures that the insulating material can fully penetrate into every gap of the winding, eliminating air bubbles and moisture in the insulation layer. This not only improves the insulation strength of the winding, but also enhances the bonding force between the conductor and the insulating material, forming a solid integral structure. In addition, the coil compression adopts a pressure block structure, which applies uniform pressure to the coil, ensuring that the winding remains compact and stable during long-term operation, and avoiding insulation degradation caused by coil loosening.
    4
    Reliability Thanks to the above structural design and manufacturing process, the transformer has an extremely low partial discharge level (stably controlled below 5pC), which can effectively reduce insulation aging caused by partial discharge and prolong the service life of the equipment. During the entire service cycle, the transformer has no risks of cracking, insulation degradation or other common faults, and can maintain stable and reliable operation even under long-term full-load or intermittent operation conditions, reducing the frequency of maintenance and downtime and ensuring the continuous and stable operation of the power supply system.
    Product Specifications
    Rated Capacity (KVA) Connection Group Label Voltage Combination (KV) No-Load Current (%) Load Loss (W) No-Load Loss (W) Short-Circuit Impedance (%)
    High Voltage (H.V.) H.L. Tap Range Low Voltage (L.V.)
    30 Dyn11
    Yyn0
    6
    6.3
    6.6
    10
    10.5
    11
    ±5%
    ±2×2.5%
    0.4 2.00 760 190 4.0
    50 2.00 1070 270
    80 1.50 1480 370
    100 1.50 1690 400
    125 1.30 1980 470
    160 1.30 2280 540
    200 1.10 2710 620
    250 1.10 2960 720
    315 1.00 3730 880
    400 1.00 4280 980
    500 1.00 5230 1160
    630 0.85 6290 1340
    630 0.85 6400 1300 6.0
    800 0.85 7460 1520
    1000 0.85 8760 1770
    1250 0.85 10300 2090
    1600 0.85 12500 2450
    2000 0.70 15500 3050
    2500 0.70 18400 3600
    1600 0.85 13900 2450 8.0
    2000 0.70 17100 3050
    2500 0.70 20200 3600
    Detail Pictures
    SGB13-10KV (1)
    SGB13-10KV (2)
    SGB13-10KV (3)
    SGB13-10KV (4)
    SGB13-10KV (5)
    SGB13-10KV (6)
    SGB13-10KV (7)
    SGB13-10KV (8)
    Frequently Asked Questions
    Q
    What makes the insulating materials used in this transformer series safe for indoor and public applications?
    The insulating materials are carefully selected and strictly tested to ensure minimal combustible content. They are non-toxic, self-extinguishing, flame retardant, and fire resistant, fully complying with international environmental protection and safety standards. In the event of accidental fire, they do not release toxic or harmful gases and produce negligible smoke, making them safe for high-density environments such as hospitals, shopping malls, and airports.
    Q
    What industries and environments are SGB13-10KV transformers most suitable for?
    These transformers are ideal for high-rise buildings, airports, subway stations, metallurgy and petrochemical plants, large shopping malls, and hospitals — any environment where high fire protection standards, large load demands, and continuous reliable power supply are critical requirements.
    Q
    What is vacuum pressure-impregnation technology and why is it important?
    Vacuum pressure-impregnation (VPI) is a manufacturing process in which the transformer windings are treated under vacuum pressure to ensure insulating material fully penetrates every gap within the winding. This eliminates air bubbles and moisture, significantly improving insulation strength, enhancing bonding between conductors and insulation, and forming a solid, durable integral structure that resists degradation over time.
    Q
    What is the partial discharge level of this transformer, and why does it matter?
    The partial discharge level is stably controlled below 5pC (picocoulombs). This extremely low level is critical because partial discharge is a leading cause of insulation aging and eventual equipment failure. By maintaining such a low level, the transformer significantly extends its service life and reduces the risk of unexpected breakdowns or downtime.
    Q
    What rated capacity range is available for the SGB13-10KV transformer series?
    The SGB13-10KV transformer series covers a wide rated capacity range from 30 KVA up to 2500 KVA, with short-circuit impedance options of 4.0%, 6.0%, and 8.0%, making it suitable for a broad range of power distribution applications across different scales of infrastructure.
    Q
    Can this transformer operate reliably under long-term full-load or intermittent load conditions?
    Yes. Thanks to the vacuum pressure-impregnation process, pressure block coil compression structure, and low partial discharge design, the transformer can maintain stable and reliable operation under both long-term full-load and intermittent operation conditions. It has no risks of cracking or insulation degradation throughout its service cycle, which reduces maintenance frequency and ensures continuous, stable power supply.