SBH-15 Hermetically-sealed Oil-immersed Amorphous Alloy Distribution Transformer Product Introductio
Ultra-low no-load loss, excellent energy-saving effect
Fully hermetically sealed oil tank structure, no oil conservator, less maintenance
Adopts amorphous alloy core, low magnetostriction, quiet operation
Strong overload capacity, stable performance under long-time heavy load
Good short-circuit resistance, reliable operation in harsh grid environment
Small partial discharge, high insulation safety
Low oil oxidation rate, long service life
Compact overall structure, small floor space
Wide operating temperature range, adaptable to various outdoor/indoor scenarios
Low operating noise, friendly to residential and public areas
1. Product Overview
The SBH-15 hermetically-sealed oil-immersed amorphous alloy distribution transformer is a new-generation energy-saving power distribution equipment optimized and upgraded based on traditional silicon steel transformers. Adopting high-performance amorphous alloy core material and fully sealed oil-immersed structure, this product fundamentally reduces no-load loss and no-load current compared with conventional transformers, solving the pain points of high energy consumption, poor sealing performance and short service life of traditional distribution transformers.
Different from ordinary oil-immersed transformers, this series transformer cancels the traditional oil conservator design and adopts an all-welded fully sealed tank structure with corrugated cooling plates. The internal insulating oil is completely isolated from the external atmosphere, which effectively prevents oil oxidation, moisture absorption and insulation aging. With reliable structural stability and excellent energy-saving performance, it has become the mainstream energy-saving and environmental protection equipment for urban and rural power grid transformation, industrial and commercial power distribution projects.
2. Core Product Parameters
The SBH-15 series covers multiple capacity specifications to meet the power distribution demands of different scenarios. The core technical parameters are in line with IEC international standards and national power industry specifications, with stable and reliable performance indicators. The key parameters are listed in the table below:
Rated Capacity (kVA) | High/Low Voltage (kV) | No-load Loss (W) | Load Loss (75℃, W) | No-load Current (%) | Short-circuit Impedance (%) | Noise Level (dB) |
50 | 10/0.4 | 25 | 870 | 0.8 | 4.0 | ≤45 |
100 | 10/0.4 | 35 | 1480 | 0.7 | 4.0 | ≤48 |
200 | 10/0.4 | 55 | 2350 | 0.6 | 4.0 | ≤50 |
315 | 10/0.4 | 75 | 3280 | 0.5 | 4.0 | ≤52 |
500 | 10/0.4 | 105 | 4550 | 0.4 | 4.0 | ≤54 |
1000 | 10/0.4 | 165 | 7650 | 0.3 | 4.5 | ≤56 |
Note: All parameters are tested under standard working conditions; products with 6kV, 12kV voltage levels and customized capacities are available on request.
3. Product Core Features
3.1 Ultra-low Energy Consumption
Adopting high-quality amorphous alloy strip as the core material, the product’s no-load loss is reduced by about 75%-80% compared with traditional S9 series silicon steel transformers, and no-load current is greatly reduced. It maintains low energy consumption during long-term no-load and light-load operation, which can effectively reduce long-term grid operation energy consumption. In actual engineering applications, the incremental investment of the equipment can be recovered through energy-saving benefits in about 3-4 years, with significant economic and environmental benefits.
3.2 Fully Sealed and Maintenance-free Design
The whole machine adopts all-welded hermetic sealing technology without oil conservator. The corrugated plate structure is used for heat dissipation and volume compensation, which can adapt to the expansion and contraction of insulating oil with temperature changes. The internal insulating oil and insulation system are completely isolated from the outside air, avoiding oil deterioration, moisture ingress and insulation aging caused by atmospheric contact. Under normal operating conditions, regular oil replacement and internal maintenance are not required, greatly reducing daily operation and maintenance costs.
3.3 Stable Insulation and High Safety
The product adopts full vacuum oil injection process during production, which completely eliminates air bubbles inside the coil and insulation layer, ensuring uniform and stable internal insulation performance. The overall structural design is compact, with strong lightning impulse resistance and short-circuit resistance. It is equipped with over-temperature and over-current protection functions, which can effectively avoid equipment failure caused by grid fluctuation and overload operation, ensuring long-term stable and safe operation.
3.4 Low Noise and Environmental Protection
The amorphous alloy core has excellent magnetic conductivity and low magnetostriction coefficient, which effectively reduces electromagnetic vibration and operating noise. The overall noise level is far lower than national industry standards, meeting the noise control requirements of residential areas, commercial zones and scenic spots. The product has no pollutant emission during operation, and the materials are recyclable, conforming to green power grid construction standards.
3.5 Compact Structure and Strong Adaptability
Compared with traditional transformers of the same capacity, this product has smaller volume, lighter weight and more compact installation structure, saving installation space and civil engineering costs. It supports non-excitation voltage regulation with flexible wiring modes, and can adapt to complex grid environment and voltage fluctuation conditions, with strong grid compatibility and environmental adaptability.
4. Application Scenarios
With the advantages of energy saving, low maintenance, high safety and low noise, SBH-15 series transformers are widely applicable to various medium and low voltage power distribution scenarios, covering civil, commercial, industrial and public infrastructure fields:
• Urban and Rural Power Grid Renovation: Suitable for community power distribution, rural grid upgrading and urban distribution network reconstruction projects, effectively reducing grid energy consumption and improving power supply stability.
• Commercial and Civil Buildings: Ideal for shopping malls, office buildings, residential communities, hotels and other densely populated areas, thanks to low noise and high safety performance, which will not affect the living and working environment.
• Industrial and Mining Enterprises: Applicable to factories, mines, industrial parks and other industrial power distribution scenarios with long-term continuous operation, reducing long-term operating energy consumption and maintenance costs.
• Public Infrastructure: Widely used in airports, railway stations, subways, schools, hospitals and other key public facilities, ensuring reliable and uninterrupted power supply.
• New Energy Supporting Projects: Matched with photovoltaic power stations, wind power stations and energy storage power stations, suitable for distributed new energy power distribution systems, adapting to fluctuating power supply conditions.
5. Product Maintenance and After-sales Service
5.1 Daily Maintenance Guidelines
This series of fully sealed transformers realizes maintenance-free operation under normal working conditions, and only needs simple regular inspection without daily complicated maintenance:
• Routine Inspection (Quarterly): Check whether the transformer shell is deformed or leaked, whether the wiring terminals are loose or overheated, and clean the surface dust and sundries to ensure good heat dissipation.
• Annual Inspection: Detect the insulation resistance, operating noise and temperature rise of the equipment, check the grounding condition, and confirm that all operating indicators are within the standard range.
• Special Scenario Maintenance: For equipment operating in high temperature, high humidity or dusty environments, properly increase the inspection frequency; avoid long-term overload operation to prevent accelerated insulation aging.
• Note: It is forbidden to open the sealed tank without authorization to avoid damaging the internal sealing structure and affecting the equipment service life.
5.2 After-sales Service Commitment
• Quality Warranty: The whole machine enjoys a 3-year free warranty, and the core amorphous alloy core enjoys a 10-year quality guarantee. During the warranty period, any quality failure caused by production process and material problems will be repaired and replaced free of charge.
• Technical Support: Provide 24-hour online technical consultation service, respond to user operation and fault consultation in real time, and provide professional guidance for equipment installation, commissioning and daily operation.
• On-site Service: For equipment faults that cannot be solved remotely, arrange professional after-sales engineers to arrive at the site within 24-48 hours according to the regional location to complete fault maintenance and equipment debugging.
• Lifelong Maintenance: Provide lifelong paid maintenance service after the warranty period, and supply original accessories at preferential prices to ensure long-term stable operation of the equipment.
• Customized Service: Support parameter customization, structural optimization and scheme matching according to user’s special working conditions and project requirements, and provide one-stop power distribution solution services.
