（1）Product Overview
SCBH18 Dry-Type Amorphous Transformer is an efficient and energy-saving power distribution equipment. Its core adopts Fe-based amorphous alloy core, combined with epoxy resin casting process. The oil-free design is safer, and the no-load loss is much lower than that of traditional transformers. It is suitable for 50Hz, 10kV power distribution systems, balancing safety and energy saving.
（2）Model Definition (Model Composition Diagram)
SCBH18-□/10 Model Explanation:
Plain Text
S C B H18 - X / 10
│ │ │ │ │ │
│ │ │ │ │ └── High Voltage Rating (10kV), Low Voltage default 0.4kV
│ │ │ │ └── Capacity Grade (kVA)
│ │ │ └── Loss Level: H18 (Super Level 1 Energy Efficiency, Upgraded Grade for Amorphous Alloy)
│ │ └── Winding Material: B=Copper Foil Low Voltage Winding
│ └── Structure Type: C=Epoxy Resin Casting Dry-Type
└── Phase Number: S=Three-Phase |
（3）Product Features
• Super Energy-Saving: Equipped with amorphous alloy core, no-load loss is more than 80% lower than S11 type, no-load current is 85% lower, meeting super level 1 energy efficiency standard, with significant long-term power saving effect.
• Safe & Eco-Friendly: Oil-free design, fire and explosion proof, no leakage and pollution. Epoxy resin casting insulation, high temperature resistance and anti-aging, suitable for indoor high-risk scenarios.
• Silent & Low Noise: Optimized core structure and casting process, operating noise ≤45dB, no noise pollution, suitable for noise-sensitive places.
• Maintenance-Free & Durable: Fully enclosed casting structure, moisture-proof and dust-proof, no regular oil change, stable insulation performance, service life up to 30 years.
• High Reliability: Dyn11 connection mode, strong short-circuit resistance, effectively suppressing power grid harmonics, stable power supply, suitable for complex power consumption environments.
（4）Application Environmental Conditions
Environmental Parameters | Allowable Range |
Ambient Temperature | -20℃～+40℃ (Customizable for extreme environments) |
Altitude | ≤1000m, derating required if exceeding |
Relative Humidity | ≤85% (at 25℃ ambient temperature) |
Pollution Class | Class Ⅱ (Upgradable to Class Ⅲ) |
Installation Site | Mainly used indoors, no severe vibration, no corrosive gas, no flammable and explosive medium |
（5）Application Scenarios
High-rise buildings, commercial complexes, hospitals, schools, data centers, industrial and mining enterprises, urban and rural power grid renovation, precision instrument workshops, indoor power distribution stations.
（6）Main Technical Parameters Table
Capacity (kVA) | No-Load Loss (W) | Load Loss (W) | No-Load Current (%) | Impedance Voltage (%) | Weight (kg) |
30 | 25 | 750 | 0.6 | 4.0 | 420 |
50 | 35 | 1000 | 0.5 | 4.0 | 520 |
100 | 48 | 1400 | 0.5 | 4.0 | 700 |
200 | 78 | 2400 | 0.35 | 4.0 | 1120 |
500 | 155 | 4800 | 0.28 | 4.0 | 2200 |
1000 | 260 | 9500 | 0.22 | 4.5 | 3950 |
2500 | 520 | 22500 | 0.22 | 4.5 | 8350 |
（7）Referenced Standards
• GB 1094.1-2013 "Power Transformers - Part 1: General"
• GB 1094.2-2013 "Power Transformers - Part 2: Temperature Rise"
• GB 1094.3-2015 "Power Transformers - Part 3: Insulation Levels, Insulation Tests and External Clearances"
• GB 1094.5-2018 "Power Transformers - Part 5: Ability to Withstand Short-Circuit"
• GB/T 10228-2015 "Technical Parameters and Requirements for Dry-Type Power Transformers"
• GB/T 25446-2010 "Oil-Immersed Distribution Transformers with Amorphous Alloy Cores" (General Standard for Amorphous Core)
• GB 20052-2020 "Minimum Allowable Values of Energy Efficiency and Energy Efficiency Grades for Power Transformers"
• IEC 60076-1～7 International Electrotechnical Commission Standards for Power Transformers
• IEC 60905-2018 "Dry-Type Power Transformers - General Requirements and Tests"
