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The SCBH15 dry-type transformer is an energy-efficient dry-type transformer that utilizes amorphous alloy material for its iron core.
The SCBH15 dry-type transformer is an energy-efficient dry-type transformer that utilizes amorphous alloy material for its iron core. It features significant advantages such as low losses, high efficiency, safety, reliability, environmental protection, and energy conservation, making it widely applicable in urban power grids, high-rise buildings, industrial facilities, and other settings with stringent requirements for power quality and safety. The following analysis is conducted from five dimensions: core technology, performance advantages, typical application scenarios, key technical parameters, and selection recommendations.
I. Core Technology: Breakthrough Application of Amorphous Alloy Iron Core
The core of the SCBH15 lies in the use of amorphous alloy strips instead of traditional silicon steel sheets for the iron core material. Amorphous alloy is formed by rapidly cooling molten metal using ultra-rapid quenching technology, resulting in thin strips just 0.02-0.04mm thick with a disordered atomic structure. This unique structure imparts distinctive electromagnetic properties to the material:
Low-Loss Characteristics: The resistivity of amorphous alloy is three times that of silicon steel sheets, and its hysteresis loop area is smaller. This results in iron core losses (no-load losses) that are more than 75% lower than those of traditional silicon steel sheet transformers, with load losses reduced by 10%-15%.
High Efficiency and Energy Conservation: Taking the SCBH15-1250kVA transformer as an example, its no-load loss is only 650W, which is over 30% lower than that of the SCB10 model. Its load loss is 9,690W, which is over 10% lower than that of the SCB11 model, significantly reducing energy waste during operation.
II. Performance Advantages: A Versatile Performer in Safety, Reliability,
and Environmental Protection
Fire and Explosion Prevention, Ensuring Absolute Safety
Employing an epoxy resin vacuum casting process, the coils are completely sealed within the insulating material, eliminating oil and pollution. This avoids the fire risks associated with oil-immersed transformers due to oil leakage, making it suitable for settings with extremely high fire safety requirements (e.g., subways, airports, high-rise buildings).
Strong Environmental Adaptability, Capable of Withstanding Harsh Conditions
The amorphous alloy iron core exhibits excellent corrosion resistance and湿热 (humidity and heat) resistance, enabling stable operation in high-temperature, high-altitude, humid, and other harsh environments. It can also withstand short-term overloads and short-circuit impacts.
Low Noise, Quiet Operation
Through optimized iron core structure design and the use of elastic clamps to secure the coils, the noise level of the SCBH15 is 10-15 decibels lower than current standards, meeting the needs of noise-sensitive locations such as hospitals and theaters.
Maintenance-Free and Long Lifespan
The fully sealed structure prevents the intrusion of dust and moisture, with partial discharge controlled below 5pC, reducing the risk of insulation aging. The design lifespan can reach over 30 years, and it requires no regular oil changes or maintenance, lowering the total lifecycle cost.
III. Typical Application Scenarios
Leveraging its comprehensive advantages, the SCBH15 dry-type transformer has become the preferred equipment in the following fields:
Urban Power Grids: As a distribution terminal device, it penetrates deep into load centers, reducing line losses and enhancing power supply quality.
High-Rise Buildings: Such as commercial centers and residential towers, where its fire and explosion prevention characteristics meet fire safety regulations.
Industrial Facilities: Applicable to industries with high equipment reliability requirements, such as chemicals and metallurgy, where it can tolerate harsh operating conditions.
Transportation Hubs: In settings like subways, airports, and stations, where compact equipment, easy maintenance, and high safety are essential.
New Energy Sector: Paired with distributed power sources such as photovoltaic and wind power to achieve efficient electrical energy conversion.
IV. Key Technical Parameter Analysis
Taking the SCBH15-1250kVA/10kV transformer as an example, its core parameters are as follows:
Parameter Item | Value | Significance |
---|---|---|
Rated Capacity | 1250kVA | Meets medium to large load demands |
Voltage Combination | 10±2×2.5%/0.4kV | Adapts to grid voltage fluctuations |
No-Load Loss | 650W | Reflects the energy-saving performance of the iron core material |
Load Loss | 9690W | Reflects the conductivity efficiency of the coils |
Short-Circuit Impedance | 6% | Limits short-circuit currents and protects equipment safety |
Cooling Method | AN/AF (Natural/Forced Air Cooling) | Forced air cooling can increase output capacity by 20% |
Protection Class | IP20 (Customizable to IP23) | Dust and water resistance for different environments |
V. Selection Recommendations: How to Choose the Right SCBH15 Transformer?
Capacity Matching
Select the rated capacity based on load requirements, typically choosing a model 1.2-1.5 times the calculated load to reserve space for future expansion. For example, with a calculated load of 800kVA, options like SCBH15-1000kVA or 1250kVA can be selected.
Voltage Level Adaptation
Confirm that the high-voltage side (e.g., 10kV, 35kV) and low-voltage side (e.g., 0.4kV) voltages of the transformer match the grid to avoid equipment damage caused by voltage deviations.
Environmental Adaptability
For use in high-temperature, high-humidity, or heavily polluted areas, choose products with higher protection classes (e.g., IP23) and enhance ventilation design.
Cooling Method Selection
Natural cooling (AN) is suitable for scenarios with small load fluctuations; forced air cooling (AF) can enhance overload capacity but increases fan maintenance costs.
Brand and After-Sales Service
Prioritize manufacturers with experience in producing amorphous alloy transformers and ISO9001 certification (e.g., Tiansheng Electric, Pengbian Electric) to ensure product quality and after-sales service.
The main products include oil immersed transformers, dry-type transformers, power transformers, amorphous alloy transformers, mining transformers, box type substations, high and low voltage switchgear and supporting products
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