（1）Product Overview
SBH17-M Oil-Immersed Amorphous Transformer is an upgraded version of SBH16-M energy-saving distribution equipment. Its core adopts upgraded Fe-based amorphous alloy core instead of traditional silicon steel sheet, further reducing no-load loss. Equipped with hermetically sealed corrugated oil tank and vacuum oil filling process, it is maintenance-free and long-lasting, suitable for 50Hz, 10kV distribution systems, and is the preferred choice for green power grid upgrading.
（2）Model Definition (Model Composition Diagram)
SBH17-M-□/10 Model Explanation:
Plain Text
S B H17 - M - X / 10
│ │ │ │ │ │
│ │ │ │ │ └── High Voltage Rating (10kV), Low Voltage default 0.4kV
│ │ │ │ └── Structure Type: M=Hermetically Sealed
│ │ │ └── Loss Level: H17 (Super Level 1 Energy Efficiency, Upgraded Grade for Amorphous Alloy)
│ │ └── Core Material: H=Amorphous Alloy Core (Upgraded Version)
│ └── Winding Material: B=Copper Foil Low Voltage Winding
└── Phase Number: S=Three-Phase |
（3）Product Features
• Super Energy-Saving Upgrade: No-load loss is over 75% lower than S11 type, no-load current is 85% lower, with more significant power saving effect in long-term operation, meeting super Level 1 energy efficiency standard.
• Hermetically Sealed & Maintenance-Free: Corrugated oil tank automatically compensates for oil volume changes, no conservator, isolating air and moisture, moisture-proof and anti-aging, completely reducing later maintenance costs.
• High Reliability Upgrade: Dyn11 connection mode, stronger short-circuit resistance, effectively suppressing power grid harmonics, power supply stability is greatly improved, suitable for more complex power consumption scenarios.
• Low Noise & Eco-Friendly Upgrade: Amorphous core with optimized noise reduction design, operating noise ≤42dB, lower noise pollution; low carbon and emission reduction, fully meeting green environmental protection requirements.
• Long Service Life: Vacuum oil filling process, more stable insulation performance, high and low temperature resistance, corrosion resistance, suitable for various harsh environments, further reducing the whole-life cycle cost.
（4）Application Environmental Conditions
Environmental Parameters | Allowable Range |
Ambient Temperature | -25℃～+45℃ (Customizable for extreme environments) |
Altitude | ≤1000m, derating required if exceeding |
Relative Humidity | ≤90% (at 25℃ ambient temperature) |
Pollution Class | Class Ⅱ (Upgradable to Class Ⅲ) |
Installation Site | Indoor and outdoor, no severe vibration, no corrosive gas, no flammable and explosive medium |
（5）Application Scenarios
Urban and rural power grid renovation, commercial complexes, high-rise buildings, industrial and mining enterprises, photovoltaic/wind power grid connection, airports and ports, outdoor distribution stations, box-type substation matching, remote unattended distribution scenarios.
（6）Main Technical Parameters Table
Capacity (kVA) | No-Load Loss (W) | Load Loss (W) | No-Load Current (%) | Impedance Voltage (%) | Weight (kg) |
30 | 28 | 780 | 0.7 | 4.0 | 390 |
50 | 38 | 1050 | 0.6 | 4.0 | 490 |
100 | 52 | 1450 | 0.6 | 4.0 | 660 |
200 | 82 | 2500 | 0.4 | 4.0 | 1060 |
500 | 165 | 5000 | 0.3 | 4.0 | 2150 |
1000 | 275 | 10000 | 0.25 | 4.5 | 3850 |
2500 | 550 | 23500 | 0.25 | 4.5 | 8250 |
（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 25446-2010 "Oil-Immersed Distribution Transformers with Amorphous Alloy Cores"
• 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
