High Efficiency 3 Phase Dry Type Transformer SGB10 Fireproof Dry Transformer

Our SG(B)10 series transformers utilize the globally recognized UL-certified NOMEX® insulation system to deliver a non-encapsulated coil design that balances high performance with extreme durability. Engineered for safety and efficiency, these units provide a reliable power solution for environments where fire resistance and moisture protection are critical.

• Superior Safety & Reliability: Designed to be fireproof, explosion-proof, and flame-retardant.

• High Efficiency: Advanced design architecture ensures low energy consumption and energy-saving operation.

• Robust Performance: Exceeds domestic standards in key indicators, including ultra-low partial discharge (PD) levels, minimal no-load loss, and low operational noise.

• Environmental Resilience: Specifically optimized for high-humidity and polluted conditions, making it suitable for installations near lakes, coastal regions, or riverside areas.

• Low Maintenance: Simplified structure for easy inspection and long-term maintenance-free operation.

The SG(B)10 series is the ideal choice for high-density and mission-critical infrastructure, including:

• Public Infrastructure: Airports, railway stations, subways, docks, and shopping centers.

• Urban & Residential: High-rise buildings, hospitals, and densely populated residential zones.

• Industrial & Energy: Power plants, metallurgical facilities, and petrochemical complexes.

• Specialized Heavy Industry: Nuclear power stations and submarines.

• Exceptional Insulation Integrity: Through meticulously designed coil structures and advanced vacuum pressure impregnation (VPI) processes, the SG(B)10 transformer operates with zero partial discharge. It remains free from cracking and maintains its insulation levels throughout its entire service life.

• Superior Mechanical Strength: The unit utilizes continuous high-voltage windings and low-voltage foil windings. After undergoing comprehensive vacuum impregnation and curing, it is reinforced with high-strength ceramic supports, providing excellent resistance to sudden short-circuit currents.

• Advanced Fire Safety: The materials used are non-flammable, flame-retardant, non-toxic, self-extinguishing, and moisture-proof.

• Minimal Smoke Emission: Even under high-temperature combustion or open flames, the SG(B)10 transformer produces almost no smoke.

• High Temperature Rating: The transformer is built with Class H (180°C) insulation.

• Powerful Overload Capability:

  • Features an ultra-thin and uniform insulation layer, offering extreme short-term overload capacity without the need for forced cooling.

  • Supports 120% long-term overload and 140% overload for up to 3 hours.

  • Due to the aging-resistant and elastic nature of the insulation material, the transformer can be started at full load immediately even under extreme ambient temperatures of ±50°C.

Technical Parameters

Outline Dimensions

Outer dimensions table