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SC(B)10-35kV Series Epoxy Resin Cast Dry-Type Power Transformer
The Gold Standard for High-Voltage Urban Power Solutions
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.
Product Standards
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
Core Performance Advantages of SC(B)10 Series
Ultra-Low Noise Levels
Advanced Step-Lap Core Joints: Utilizes a sophisticated three-stage stepped joint structure to minimize magnetic noise
Reinforced Clamping Structure: Features a flat plate clamping system with hollow bolts to secure the core center column and control vibration
Vibration Absorption: Equipped with an elastic clamping mechanism that effectively absorbs mechanical oscillations to further reduce decibel output
Superior Thermal Management
Innovative POM Gas-Gap Technology: Features an advanced POM airway rod winding structure applicable to both high and low voltage coils
Optimized Ventilation: Replaces traditional channel steel with a flat plate clamping structure to maximize airflow efficiency and lower operating temperatures
High-Efficiency Insulation: Combines thin-layer insulation with minimal filler and a rational forced-air cooling (AF) design for optimal heat dissipation
Minimal Partial Discharge
Proprietary Structural Design: Implements a unique process structure to ensure insulation integrity
Advanced Vacuum Casting: Utilizes state-of-the-art static mixing and casting equipment to eliminate voids and internal defects
Unmatched Safety & Reliability
Direct Load-Center Installation: Flame-retardant, fireproof, pollution-free, and maintenance-free, allowing for safe placement directly at the point of use
Enhanced Overload Capacity: Robust thermal design allows the unit to operate at 150% of its rated load under forced air cooling
Intelligent Protection: Integrated with a comprehensive temperature monitoring and control system to ensure 24/7 operational safety
Next-Generation Energy Efficiency
Technological Evolution: The SC(B)10 series inherits all the advantages of the SC(B)9 while delivering significantly improved energy performance
Reduced Operational Costs: Achieves an approximately 10% reduction in no-load losses compared to the SC(B)9 series
Technical Parameters
Model
No-load Loss (W)
Load Loss (W)
Impedance (%)
No-load current %
Noise (dB)
Weight (kg)
Dimensions (mm)
SC10-50/35
430
1180
6
2.8
42
720
1430×560×550
SC10-100/35
600
1730
6
2.4
42
890
1510×760×660
SC10-125/35
650
2170
6
1.6
45
950
1510×760×660
SC10-160/35
750
2590
6
1.6
45
1000
1510×760×660
SC10-200/35
840
2750
6
1.4
45
1260
1560×760×660
SC10-250/35
940
3140
6
1.4
45
1420
1560×760×660
SC10-315/35
1120
3730
6
1.0
45
1730
1560×760×660
SC10-400/35
1300
4480
6
1.0
45
1840
1770×960×820
SC10-500/35
1530
5500
6
0.8
48
2200
1770×960×820
SC10-630/35
1760
6370
6
0.8
48
2630
1870×960×820
SC10-800/35
2040
7550
6
0.8
48
3260
1980×960×820
SC10-1000/35
2300
8650
6
0.5
48
3990
1980×960×820
SC10-1250/35
2680
10530
6
0.5
50
4470
2080×1220×1070
SC10-1600/35
3000
12810
6
0.5
50
5570
2290×1220×1070
SC10-2000/35
3610
15090
6
0.5
50
6410
2390×1220×1070
SC10-2500/35
4210
18080
6
0.5
50
6930
2390×1220×1070
Note: The provided dimensions are for reference only during design selection. The final dimensions are subject to the actual product sample provided by our company.
External Dimensions
Why Choose JNCN Power for SC(B)10-35kV Series?
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.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2009
Total Annual:
50000000-55000000
Employee Number:
160~170
Ecer Certification：
Verified Supplier
China JNCN Power Equipment Co., Ltd. is a premier manufacturer in the power transmission and distribution industry. We specialize in delivering integrated, one-stop solutions—encompassing design, precision manufacturing, and global logistics—dedicated to building safe and efficient infra... China JNCN Power Equipment Co., Ltd. is a premier manufacturer in the power transmission and distribution industry. We specialize in delivering integrated, one-stop solutions—encompassing design, precision manufacturing, and global logistics—dedicated to building safe and efficient infra...
