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European style box
YB-12 Box Type Substation
European style box transformer (European style prefabricated substation) is an integrated distribution equipment designed by independently dividing high voltage distribution units, distribution transformers, and low voltage distribution units into chambers. It adopts a factory standardized prefabrication and modular assembly production mode, and only requires basic pouring and module splicing on site, without complex on-site wiring and debugging.
Its structural design conforms to European distribution technology standards, focusing on cavity isolation, heat dissipation performance, and maintenance convenience. It is core compatible with voltage levels such as 10kV/0.4kV, 20kV/0.4kV, 35kV/0.4kV, and can flexibly configure functions such as protection, metering, and reactive power compensation according to power grid planning needs. It is widely used in urban backbone distribution, large-scale park power supply, and other scenarios, and is the core equipment for achieving standardized and regulated power distribution in the power grid.
The entire production process follows national and international standards such as GB/T and IEC, from raw material inspection upon arrival at the factory, independent production and commissioning of each unit to overall commissioning of finished products. A multi node quality inspection system is established to ensure that all performance indicators of the equipment meet the requirements for safe operation of the power grid.
Features
1. Independent design with high safety protection level:
adopting a fully isolated layout of high, variable, and low chambers, fireproof and insulation partitions are set between each unit to effectively prevent the spread of faults. The equipment shell protection level can reach IP54 or above, which can effectively prevent foreign objects from entering and rainwater leakage, while reducing mutual interference during the operation of each unit, greatly improving the safety and stability of equipment operation.
2. Flexible module combination and strong functional expansion:
The high voltage, transformer, and low voltage units are independently modularized and can be flexibly matched with circuit breakers, load switches, reactive power compensation devices, intelligent metering modules, and other components according to user power supply needs. They support on-site expansion and power upgrades in the later stage, without the need for overall equipment replacement, and can adapt to the distribution planning needs of different stages of the power grid.
3. Optimized cooling system, stable operation at full load:
Designed for the heating characteristics of transformer operation, dedicated air ducts and heat sinks are used. Some large capacity models are equipped with forced air cooling devices, which can quickly dissipate the internal heat of the equipment, effectively control the temperature rise of equipment operation, and ensure long-term stable operation at full load under rated capacity. It is suitable for power supply scenarios with concentrated large loads and continuous electricity demand.
4. Adequate maintenance space and convenient operation and maintenance:
Each functional unit is independently enclosed and has sufficient reserved maintenance channels and operation space. Both high and low voltage units are equipped with independent maintenance doors and operation panels. Operation and maintenance personnel can perform maintenance, upkeep, and component replacement on individual units without dismantling the entire equipment, greatly reducing the difficulty and time cost of on-site operation and maintenance.
5. Standardized production, adapted to large-scale deployment of the power grid:
using standardized components and production processes, with unified product specifications and universal interfaces, it can achieve mass production and rapid delivery. At the same time, standardized design enables unified equipment installation, wiring, and debugging processes, adapting to the centralized deployment needs of large-scale distribution projects such as urban power grids and industrial parks, and improving the efficiency of power grid construction.
Our company’s European style box transformer production realizes independent production line operations for high voltage, transformer, and low voltage units. We have a professional power equipment research and development team and a modern CNC production workshop, equipped with advanced production equipment such as fully automatic bending machines, high-precision winding machines, and intelligent joint debugging and testing platforms to ensure the manufacturing accuracy and overall matching of each unit.
The product has passed the national CQC certification, power equipment type test certification, and has also obtained ISO9001 quality management system, ISO14001 environmental management system, and ISO45001 occupational health and safety management system certification. All indicators have reached the leading level in China. The company can provide a full process integrated service from product solution customization, production and manufacturing, on-site installation and debugging to later operation and maintenance.
At the same time, it also provides value-added services such as intelligent monitoring and remote operation and maintenance for power grid projects to meet the diversified power supply needs of users. If you need to know the specific technical parameters, capacity configuration, customized solutions, and delivery cycles of products with different voltage levels, you can contact our dedicated customer service for detailed information.
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Specification
| Item | Unit | High voltage electrical appliances | Transformer | Low Voltage Apparatus |
| Rated voltage | kV | 6/10 | 6/0.4 10/0.4 | 0.4 |
| Rated capacity | kVA | 50~1600 | ||
| Rated current | A | 200,400,630 | 100~3200 | |
| Rated short-circuit breaking current | A | Load switch 400-630 | ≥30kA | |
| kA | The combination switch depends on the fuse | |||
| Rated short-time withstand current | kA | 20,25(4s) | ≥30(1s) | |
| Rated peak withstand current | kA | 50,63 | ≥75 | |
| Power frequency withstand voltage (1min) | kV | Relatively and alternately 28 | 35 (Oil immersed) |
2500V |
| Isolation fracture 32 | 35 (Dry) |
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| Lightning impulse withstand voltage (peak value) | kV | Relative and alternating 75 | 75 | 12 |
| Isolation fracture 85 | 85 | |||
| Box protection level | IP32 | |||
| Noise level | db | 55 | ||
| Execution standards | GB/T 17467 “High voltage and low voltage prefabricated substations” | |||
| DL/T537 “Technical Conditions for Ordering 6-35kV Box type Substations” | ||||
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FAQs
What are the differences between the core applicable scenarios of European style box transformers and American style box transformers?
European style box type transformers are more suitable for fixed scenarios with concentrated loads, large electrical capacity, and long-term stable power supply, such as urban main road distribution, large industrial parks, commercial complexes, high-speed railway stations, etc., due to their split cavity design, good heat dissipation, and strong functional expansion; The American style box change focuses on compact structure and easy installation, suitable for space limited, temporary or dispersed power supply scenarios, such as urban village renovation, rural power distribution, temporary power supply for municipal construction, etc.
Can European style transformer achieve intelligent distribution and remote monitoring?
Sure. The European style box transformer can be customized with intelligent measurement and control modules, wireless communication modules, and remote monitoring terminals. It can collect real-time operating data such as voltage, current, temperature, and load of equipment, and achieve remote telemetry, remote signaling, and remote control through the power grid monitoring platform. At the same time, it has functions such as fault warning, data recording, and remote fault diagnosis, which are suitable for the construction needs of smart grids.
What are the special requirements for the production of 35kV level European box transformers compared to 10kV and 20kV levels?
The 35kV level European box transformer has higher requirements for insulation performance and withstand voltage level. During production, higher insulation level raw materials need to be used, and special testing procedures such as partial discharge testing and lightning impulse testing need to be added; At the same time, the structural design of transformers and high-voltage units needs to be further optimized to enhance the insulation protection and anti-interference capabilities of the equipment. The production cycle is slightly longer than that of 10kV and 20kV levels, and professional high-voltage detection equipment and technical personnel are required.
What are the key points for the foundation construction of European style box transformers?
The European box type transformer requires pouring concrete foundation, which should have sufficient bearing capacity and reserve embedded parts and cable trenches. The foundation surface should be kept horizontal; The basic location needs to consider the operating space for equipment maintenance and cable laying, and at the same time, drainage design should be done to prevent water accumulation from seeping into the interior of the equipment; European box transformers with different voltage levels and capacities have different basic dimensions and bearing capacity requirements, and must be constructed strictly according to the product drawings.
Can the reactive power compensation function of the European box transformer be adjusted according to demand?
Sure. The reactive power compensation module is designed as an independent module, which can flexibly configure compensation capacity and compensation methods (static compensation/dynamic compensation) according to the user’s electrical load characteristics. If the user’s load structure changes in the later stage, the compensation capacitance can be increased or decreased on site, and the compensation parameters can be adjusted to ensure that the power factor of the power supply meets the requirements of the power grid and reduce line losses.
Related Applications
Transformation of distribution network in urban-rural fringe: adapted to the upgrading scenarios of distribution network in suburban areas and urban-rural fringe areas. This region has both the characteristics of centralized urban electricity consumption and the problems of limited rural distribution space and construction conditions. The compact structure of the combined box transformer can adapt to narrow installation spaces, and the fast installation feature can shorten the construction period. At the same time, the modular function can be gradually expanded according to regional development to meet the increasing demand for electricity in urban-rural fringe areas, effectively solving the problems of insufficient power supply capacity and low power supply reliability in this region.
Small and medium-sized industrial parks and township industrial parks: widely used in small and medium-sized industrial parks, light manufacturing parks and other scenarios in townships. This scenario has moderate electricity capacity, a large number of enterprises, and high requirements for flexibility and cost-effectiveness in power supply. The combination box transformer can flexibly arrange power supply nodes according to the distribution of enterprises in the park, and can also customize multi circuit distribution to meet the electricity needs of different enterprises. The high cost-effectiveness can effectively reduce the construction cost of power distribution in the park and adapt to the development needs of small and medium-sized parks.
Power supply for municipal temporary key projects: Suitable for urban road renovation, landscaping projects, temporary power supply for large exhibition venues and other municipal temporary key projects. This scenario requires fast installation and easy disassembly of power supply equipment, and can adapt to temporary construction conditions. The integrated design of the combined box transformer can achieve rapid installation and put into use. After the completion of the project, it can be disassembled and relocated to other projects for reuse, with both flexibility and economy, effectively ensuring the smooth development of temporary key projects.
Construction of Rural New Villages and Agricultural Industrial Parks: Suitable for rural power supply scenarios such as rural new village construction, modern agricultural industrial parks, and rural tourism scenic spots. The installation site is scattered, the construction conditions are limited, and the weather resistance and cost-effectiveness requirements of the power supply equipment are high. Multiple installation methods of the combined box transformer can adapt to different installation conditions in rural areas, and the weather resistance design can adapt to the harsh environment in rural fields. At the same time, the high cost-effectiveness can effectively reduce the cost of rural distribution network construction, and help upgrade the rural power grid and promote rural revitalization.
Centralized power supply for commercial streets and community ground level shops: Suitable for urban commercial streets, community ground level shops, small shopping malls and other scenarios. The electricity load in this scenario is mainly commercial lighting and small commercial equipment, with diverse and concentrated electricity demands. The compact structure of the combined box transformer can be hidden in corners of commercial streets, community green belts and other areas, without affecting the beauty of the site. At the same time, it can customize functions such as reactive power compensation and intelligent metering to reduce line losses, improve power supply quality, and meet the centralized power supply needs of commercial streets and community ground level shops.
