Energy Efficient Cast Resin Dry Type Transformers SCB10-35kV Air Cooled Transformer Dry Type

The SC(B)10-35kV series is a high-performance distribution transformer designed for specialized applications requiring a direct step-down from 35kV grids to 400V. Compared to standard 6-10kV units, this series is engineered with stricter manufacturing requirements to ensure absolute reliability in high-demand environments. Utilizing advanced partial discharge control and stress-management casting techniques, it delivers an ideal internal insulation state for long-term grid stability.

• Standards Compliance: GB/T10228, GB6450, IEC60076
• Rated High Voltage: 35kV
• Rated Low Voltage: 0.4kV
• Tapping Range: Off-circuit tap changing (15%, ±2 × 2.5%)
• On-load Tap Changing: (±4 × 2.5%)
• Vector Group: Dyn11 / Yyn0
• Insulation Level: LI170AC70 / AC3

• Precision Engineering for High-Voltage Reliability At the 35kV level, insulation integrity is critical. Our SC(B) series utilizes advanced thin-insulation technology and a specialized filling process that ensures consistent dielectric strength, making it the most reliable choice for demanding high-voltage grids.
• World-Class German Casting Technology We utilize a new generation of German HEDRICH vacuum casting equipment. This system’s vacuum film degassing and automated metering pumps ensure an ultra-precise epoxy mixture, resulting in a void-free, solid-cast winding that is virtually impervious to cracking.
• Industry-Leading Low Partial Discharge Through our rigorous manufacturing control, we maintain partial discharge levels at ≤ 10pC (and even lower for specific models). This significantly exceeds international standards, drastically reducing the risk of insulation breakdown and extending the transformer’s service life.
• Optimized "Airway Bar" Thermal Management Our proprietary axial airway technology creates dedicated cooling channels within the winding’s heat center. This design achieves the best-in-class heat dissipation effect, allowing the unit to handle high loads safely while enhancing overall mechanical strength.
• Extreme Environmental Resilience The epoxy resin encapsulation provides a total seal against moisture, salt spray, and dust. This "Immediate Power-up" design means the transformer can be energized directly after long periods of inactivity or storage in high-humidity coastal and industrial zones.
• Eco-Friendly and Fire-Safe JNCN Power is committed to sustainability. Our cast resin transformers are flame-retardant, self-extinguishing, and non-toxic. In the event of an external fire, they produce almost no smoke, ensuring the safety of personnel in high-rise buildings, hospitals, and underground facilities.
• Modernized 2026 Production Standards Operating from our 2026-standard modernized facility, every 35kV unit undergoes a comprehensive suite of Factory Acceptance Tests (FAT) in our specialized labs to guarantee that your infrastructure receives nothing but peak performance.