JNCN Power
| Supply Ability | 5,000 Units per Year |
| Delivery Time | Est. 15 days |
| Packaging Details | Wooden crates on pallets |
| Type | Non-Encapsulated Dry-Type Power Transformer |
| Phase | Three-phase |
| Insulation Class | Class H (180℃) |
| Insulation System | UL-Recognized NOMEX® Insulation System |
| Voltage Class (High Voltage) | 10kV, 11kV, 20kV, 22.9kV, 35kV |
| Voltage Class (Low Voltage) | 0.4kV, 0.415kV, 0.433kV, 0.69kV |
| Winding Structure | HV Continuous Winding / LV Foil Winding |
| Cooling Method | AN (Air Natural) / AF (Air Forced) |
| Overload Capacity | 120% Long-term / 140% for 3 Hours (without forced cooling) |
| Safety Ratings | Fireproof, Explosion-proof, and Non-toxic |
| Core Process | Vacuum Pressure Impregnation (VPI) with Zero Cracking |
| Environmental Resistance | Optimized for High-Humidity & Polluted Areas (±50℃ operation) |
| Partial Discharge | ≤5pC (Ultra-low Discharge Levels) |
| Maintenance Interval | Lifecycle Maintenance-Free & Fully Recyclable |
| Brand Name | JNCN |
| Model Number | SG(B)10 |
| Certification | ISO9001, CE, CCC |
| Place of Origin | China |
View Detail Information
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Product Specification
| Supply Ability | 5,000 Units per Year | Delivery Time | Est. 15 days |
| Packaging Details | Wooden crates on pallets | Type | Non-Encapsulated Dry-Type Power Transformer |
| Phase | Three-phase | Insulation Class | Class H (180℃) |
| Insulation System | UL-Recognized NOMEX® Insulation System | Voltage Class (High Voltage) | 10kV, 11kV, 20kV, 22.9kV, 35kV |
| Voltage Class (Low Voltage) | 0.4kV, 0.415kV, 0.433kV, 0.69kV | Winding Structure | HV Continuous Winding / LV Foil Winding |
| Cooling Method | AN (Air Natural) / AF (Air Forced) | Overload Capacity | 120% Long-term / 140% for 3 Hours (without forced cooling) |
| Safety Ratings | Fireproof, Explosion-proof, and Non-toxic | Core Process | Vacuum Pressure Impregnation (VPI) with Zero Cracking |
| Environmental Resistance | Optimized for High-Humidity & Polluted Areas (±50℃ operation) | Partial Discharge | ≤5pC (Ultra-low Discharge Levels) |
| Maintenance Interval | Lifecycle Maintenance-Free & Fully Recyclable | Brand Name | JNCN |
| Model Number | SG(B)10 | Certification | ISO9001, CE, CCC |
| Place of Origin | China | ||
| High Light | 3 Phase Dry Type Transformer SGB10 ，Fireproof Phase Dry Type Transformer ，Fireproof outdoor dry type 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
| Rated High Voltage | High voltage tap range | Insulation level | Connection Group | ||||||
| High Voltage(kV):3.6,6.3,6,10,10.5,11; Low Voltage(KV):0.4,0.69; |
±5% or ±2*2.5% | L175AC35/AC3 | Yyn0 or Dyn11 | ||||||
| Model | No-load Loss (W) | Load Loss (W) | Impedance (%) | No-load current % | Noise (dB) | Weight (kg) | |||
| SG(B)10-100/10 | 105 | 1880 | 4 | 2.0 | 46 | 590 | |||
| SG(B)10-160/10 | 560 | 3105 | 4 | 1.8 | 50 | 870 | |||
| SG(B)10-200/10 | 630 | 3975 | 4 | 1.8 | 50 | 970 | |||
| SG(B)10-250/10 | 760 | 4675 | 4 | 1.8 | 50 | 1160 | |||
| SG(B)10-315/10 | 880 | 5610 | 4 | 1.8 | 51 | 1350 | |||
| SG(B)10-400/10 | 1040 | 6630 | 4 | 1.8 | 51 | 1580 | |||
| SG(B)10-500/10 | 1200 | 7950 | 4 | 1.8 | 53 | 1830 | |||
| SG(B)10-630/10 | 1340 | 9775 | 6 | 1.6 | 53 | 2060 | |||
| SG(B)10-800/10 | 1690 | 11500 | 6 | 1.3 | 55 | 2450 | |||
| SG(B)10-1000/10 | 1980 | 13305 | 6 | 1.3 | 55 | 2910 | |||
| SG(B)10-1250/10 | 2350 | 15600 | 6 | 1.3 | 55 | 3190 | |||
| SG(B)10-1600/10 | 2700 | 18105 | 6 | 1.3 | 55 | 4160 | |||
| SG(B)10-2000/10 | 3320 | 21200 | 6 | 1.2 | 55 | 4860 | |||
| SG(B)10-2500/10 | 4000 | 24705 | 6 | 1.2 | 56 | 5860 | |||
Outline Dimensions
Outer dimensions table
| Model | Non-enclosed (without protective cover) L*H*B; Dimensions with live wires (mm) |
m (mm) |
n (mm) |
Non-enclosed (without protective cover) L*H*B; Dimensions with live wires (mm) |
m (mm) |
n (mm) |
| SG(B)10-100/10 | 940*920*500;510 | 660 | 400 | 1340*1150*800 | 660 | 400 |
| SG(B)10-160/10 | 940*960*500;560 | 660 | 400 | 1340*1150*800 | 660 | 400 |
| SG(B)10-200/10 | 1100*1050*550;580 | 660 | 450 | 1500*1280*900 | 660 | 450 |
| SG(B)10-250/10 | 1120*1120*550;600 | 660 | 450 | 1500*1280*900 | 660 | 450 |
| SG(B)10-315/10 | 1190*1210*860;640 | 660 | 660 | 1700*1460*1000 | 660 | 660 |
| SG(B)10-400/10 | 1300*1330*860;640 | 820 | 660 | 1700*1460*1000 | 820 | 660 |
| SG(B)10-500/10 | 1330*1410*860;650 | 820 | 660 | 1900*1610*1000 | 820 | 660 |
| SG(B)10-630/10 | 1450*1365*860;650 | 820 | 660 | 1900*1610*1000 | 820 | 660 |
| SG(B)10-800/10 | 1500*1480*1020;760 | 820 | 820 | 2000*1770*1100 | 820 | 820 |
| SG(B)10-1000/10 | 1590*1570*1020;790 | 820 | 820 | 2000*1770*1100 | 820 | 820 |
| SG(B)10-1250/10 | 1610*1700*1270;840 | 1070 | 1070 | 2100*2130*1270 | 1070 | 1070 |
| SG(B)10-1600/10 | 1660*1770*1270;920 | 1070 | 1070 | 2100*2130*1270 | 1070 | 1070 |
| SG(B)10-2000/10 | 1700*1930*1270;930 | 1070 | 1070 | 2100*2130*1270 | 1070 | 1070 |
| SG(B)10-2500/10 | 1780*2090*1675;1000 | 1475 | 1475 | 2200*2300*1675 | 1475 | 1475 |
Company Details
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...
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