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Dry-type transformer: SCB10, SCB11, SCB12, SCB13, SCB14
Transformer

Dry-type transformer: SCB10, SCB11, SCB12, SCB13, SCB14

Dry-type transformer is a new type of power transformer which is made of epoxy resin or other solid insulating materials and does not contain insulating oil. Its core features are safety and environmental protection, high efficiency and stability, and easy maintenance.

    The product employs high-purity copper coils wound into robust insulators formed through vacuum casting, delivering exceptional moisture-proof, dust-proof, and flame-retardant performance (typically achieving F/H-class insulation). This ensures reliable long-term operation in harsh environments. By completely eliminating oil leakage and fire hazards, it is particularly suitable for fire safety-critical locations such as high-rise buildings, rail transit systems, data centers, hospitals, commercial complexes, and industrial/mining enterprises.
    Compared with oil-immersed transformers, dry-type transformers offer distinct advantages including lower energy loss, quieter operation, higher overload capacity, and maintenance-free design. Their compact structure and flexible installation allow direct placement at load centers, effectively reducing line losses. Furthermore, their high efficiency aligns perfectly with modern energy-saving and environmental protection principles.
    The SCB13 meets China's National Energy Efficiency Standard (Level 2), while the SCB14 achieves the National Energy Efficiency Standard .

    ◎ Core Structure‌: The core is made of high - permeability, high - quality grain - oriented cold - rolled silicon steel sheets, with a 45° full - step lapped seam. It adopts a special square - tube core pull plate structure, and the core columns are bound with insulating tape. The core surface is coated with a special resin to prevent moisture and rust, effectively reducing no - load loss, no - load current, and core noise.
    ◎ Safety‌: Fire - resistant and non - polluting, it can be directly installed at the load center.
    ◎ Maintenance and Cost‌: Maintenance - free, easy to install, and with low overall operating costs.
    ◎ Moisture - Resistance‌: Excellent moisture - resistance, capable of normal operation at 100% humidity. After shutdown, it can be put back into operation without pre - drying.
    ◎ Performance and Protection‌: Low loss, low partial discharge, low noise, and strong heat - dissipation capacity. It is equipped with a complete temperature protection control system, providing reliable assurance for safe transformer operation.
    ◎ Reliability‌: High reliability. According to research on products already in operation, the product's reliability indicators have reached international advanced levels.

    Operating Conditions

    ‌Installation Altitude
    The altitude should not exceed 1000m.
    ‌Waveform of the Power - supply Voltage
    It should be similar to a sine wave.
    ‌Symmetry of the Polyphase Power - supply Voltage
    The power - supply voltage connected to the polyphase transformer should be approximately symmetrical.
    ‌Ambient Temperature
    The maximum air temperature is +40℃; the maximum daily average air temperature is +30℃; the maximum annual average air temperature is +20℃; the minimum air temperature is -30℃ (applicable to indoor - type transformers).

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