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

The SG(B)13 non-encapsulated dry-type transformer represents cutting-edge technology in the electrical industry. Manufactured using the advanced Vacuum Pressure Impregnation (VPI) process, this transformer is designed with an Open Vented Dry Type (OVDT) structure. Its insulation thermal class typically meets Class H standards, supporting a maximum insulation temperature of 180℃, with a reference temperature of 145℃ and a winding temperature rise of 125K. As a leading product from one of the top China Suppliers, our factory ensures high efficiency and quality in every transformer we produce, making it an ideal choice for various applications

    Product Features

    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. The following is a detailed elaboration on its excellent safety performance and high reliability:

    1. 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. Wide Application Scenarios: 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. Advanced Manufacturing Process: 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. High Reliability & Low Discharge: 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 lable voltage combination(KV) no-load current(%) load loss(W) no-load loss(W) short-circuit impedance(%)
    High voltage(H.V.) H.L.tap range (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

    Frequently Asked Questions (FAQ)

    What are the main safety features of this transformer?

    The transformer adopts high-quality environmentally friendly insulating materials that are non-toxic, self-extinguishing, flame retardant, and fire-resistant. In the event of an accidental open fire, it will not release toxic gases, and smoke production is almost negligible.

    What are the typical application scenarios for this equipment?

    It is particularly suitable for key areas with high fire protection requirements and large load demands, such as high-rise buildings, airports, subways, metallurgy and petrochemical industries, large shopping malls, and hospitals.

    What manufacturing process is used for the core?

    The core manufacturing process utilizes advanced vacuum pressure-impregnation technology. This ensures the insulating material fully penetrates every gap of the winding, eliminating air bubbles and moisture to improve insulation strength.

    How does the coil structure ensure long-term stability?

    The coil compression adopts a pressure block structure that applies uniform pressure to the coil. This ensures the winding remains compact and stable during long-term operation, avoiding insulation degradation caused by coil loosening.

    Does this transformer have a high partial discharge level?

    No, it has an extremely low partial discharge level, stably controlled below 5pC. This effectively reduces insulation aging caused by partial discharge and significantly prolongs the service life of the equipment.