The SCB13-500kVA Dry-Type Transformer is a high-performance, fire-safe power distribution solution designed for indoor environments where oil-filled transformers are not permitted. Built using advanced Vacuum Cast Resin (VPI) technology, the high and low voltage windings are encapsulated in thin-layer epoxy resin, making them impervious to moisture, dust, and pollution.

The SCB13 series is the premium energy-saving successor to the SCB11, offering significantly lower no-load losses and optimized thermal performance. It is the preferred choice for safety-critical infrastructure, including commercial skyscrapers, airports, medical facilities, and modern data centers.

• Fire-Retardant & Self-Extinguishing: Unlike oil-immersed units, the epoxy resin material is non-flammable and will not explode or release toxic gases. It meets the highest F1 fire safety requirements.
• Superior Moisture Resistance: The vacuum-casting process ensures a void-free insulation barrier. This allows the transformer to be restarted immediately after long periods of inactivity in high-humidity environments without pre-drying.
• Low Noise & Low Loss: Utilizing high-permeability, grain-oriented silicon steel with a specialized step-lap core stacking method, the SCB13 reduces both energy waste and audible electromagnetic humming.
• High Overload Capacity: Equipped with intelligent temperature control and forced-air cooling (FAN) systems, the unit can handle a short-term 40%–50% overload without compromising the insulation life.
• Compact & Maintenance-Free: No oil levels to monitor, no gaskets to replace, and no dielectric testing required. Its compact design allows for direct installation in the load center, reducing cable costs.

1. Data Centers & Server Farms: Providing clean, reliable power with minimal fire risk in high-density cooling environments.
2. High-Rise Buildings & Malls: Safe installation in basement or rooftop electrical rooms, meeting strict urban building fire codes.
3. Hospitals & Labs: Low-noise operation and zero oil-leak risk make it ideal for sensitive healthcare environments.
4. Subways & Underground Transit: Rugged cast-resin construction resists the metallic dust and vibration common in tunnel systems.

• Integrated Temperature Control: Each unit comes with a digital thermostat and PT100 sensors embedded in the windings, providing real-time monitoring and automatic fan control.
• Robust Enclosure Options: Available as a core-and-coil unit or with a protective IP20/IP23 steel enclosure to prevent accidental contact and improve safety.
• Strict Quality Control: Every SCB13 transformer undergoes impulse voltage testing and partial discharge (PD) measurements to ensure zero defects before shipping.
• Environmental Responsibility: All materials are halogen-free and recyclable at the end of the transformer's 30-year lifecycle.

Q: What is the difference between SCB11 and SCB13?

A: The SCB13 is the high-efficiency version. It reduces no-load losses by approximately 15%–25% compared to SCB11, resulting in significant electricity savings over the life of the unit.

Q: Can this transformer be used outdoors?

A: Dry-type transformers are primarily designed for indoor use. If outdoor installation is required, it must be housed in a specialized IP44 or higher NEMA 3R enclosure with appropriate ventilation and weatherproofing.

Q: Is "Cast Resin" the same as "Vacuum Pressure Impregnated (VPI)"?

A: They are similar, but Cast Resin (as used in SCB13) actually encapsulates the coil in a solid thick-walled block of epoxy, providing better protection against harsh environments than the thinner VPI varnish.