The 250KVA SCB13 cast-resin dry-type transformer stands out as the most balanced and cost-effective option for small and medium-sized indoor 10kV power distribution projects. Compared with traditional oil-immersed transformers, it adopts an oil-free operation design, completely eliminating hidden dangers such as oil leakage, fire and explosion. This core advantage makes it the preferred choice for scenarios with strict safety and fire protection standards, including hospitals, data centers, commercial complexes, residential communities and port shore power systems.
Equipped with full copper windings and Class F insulation, it features a 10kV/0.4kV rated voltage, Dyn11 vector group and 4% short-circuit impedance, fully compliant with domestic civil and industrial power distribution standards. It delivers stable power output and strong anti-harmonic capability, which effectively protects precision electrical equipment at the load end. With a no-load loss of 720W and a rated load loss of 2830W at 120℃, it achieves remarkable energy-saving performance compared with old-generation models, greatly reducing long-term operational power consumption.
In actual engineering applications, its adaptability is highly prominent. With overall dimensions of 1170×1330×1165mm and a total weight of about 900kg, it only occupies a floor area of 1.2 square meters. The compact structure solves the problem of limited indoor power room space, enabling convenient transportation and on-site installation without complicated civil engineering support. It supports dual cooling modes: AN natural air cooling for daily stable operation and AF forced air cooling, which allows 140% short-term overload operation to cope with peak power demand and avoid unexpected power trips.
Superior safety and intelligent monitoring are its core competitiveness. The resin material is self-extinguishing and flame-retardant. The operating noise is controlled below 50dB, ensuring a quiet working environment. It also has excellent moisture and salt fog resistance, suitable for humid coastal and port indoor environments. Built-in PTC temperature sensors and an intelligent temperature controller realize real-time temperature monitoring, automatic fan start-stop, over-temperature alarm and high-temperature trip protection. Fitted with a standard enclosure, it reaches IP20 protection grade, preventing foreign object intrusion and accidental contact to ensure operational safety.
This model has been widely applied in high-quality engineering projects. For instance, it serves the shore power system of Berth No.3 of Xiamen Houshi Port, providing stable power supply for docked ships, replacing ship auxiliary power generation and realizing energy conservation and emission reduction. Overall, with outstanding safety, energy efficiency, low maintenance and easy installation, the 250KVA dry-type transformer is one of the most reliable and cost-effective choices for small and medium-capacity indoor power distribution projects.
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