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China Suppliers Factory Customized Prefabricated Substation 35kV for Wind Power with Corrosion-Resistant Design
Products Description
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1The floor area has been reduced by 80% – 90%: Compared to conventional civil engineering substations that require separate buildings and spacious layouts, the YB-12 box-type transformer of the same capacity level requires only 1/10 to 1/5 of the floor area. This means that in urban centers, commercial complexes, or high-density residential areas where land resources are increasingly scarce, you can deploy a complete power distribution system in a space the size of a parking lot. This revolutionary improvement in space utilization efficiency directly translates into significant cost savings in land use and greater planning flexibility.
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2Wide applicability and adaptability: From high-rise building complexes in urban core areas, upscale residential communities, to emerging high-tech industrial parks; from rural and urban power grid renovation projects to small and medium-sized industrial and mining enterprises, even temporary construction sites and sports venues for short-term power usage, YB-12 can provide matching power supply solutions for all these scenarios. Its compact design makes it easy to be flexibly deployed in various complex environments.
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3Significant optimization of the entire construction cost: The prefabrication of the factory enables a reduction of over 70% in on-site construction volume. Users do not need to undertake complex substation design; they only need to provide a flat foundation, significantly simplifying the design process. The construction period can be shortened from the traditional 3–6 months to 2–4 weeks, significantly reducing labor, management, and financial costs. This "rapid deployment" capability is particularly suitable for commercial projects with tight schedules or emergency power supply requirements.
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4This modular integration not only achieves seamless connection between devices, but also clearly separates the functional areas (high-voltage room, transformer room, low-voltage room) through a scientific layout. While ensuring the safe operating distance, it minimizes the overall volume to the greatest extent. Each unit has completed internal connections and tests before leaving the factory, truly realizing the advanced concept of "substation as a product".
Product Specifications
| Name | Unit | High-voltage electrical cabinet | Transformer | Low-voltage electrical cabinet |
| Nominal voltage | KV | 10 | 10/0.4 | 0.4 |
| Rated current | A | 630 | 100~2500 | |
| Rated frequency | Hz | 50 | 50 | 50 |
| Rated capacity | KVA | 100~1250 | ||
| Rated thermal stability current | kA | 20/4S | 30/15 | |
| Rated dynamic stable current (peak) | kA | 50 | 63 | |
| Rated closing short-circuit current (peak) | kA | 50 | 15~30 | |
| Rated breaking short-circuit current | kA | 31.5 | ||
| Rated starting load current | A | 630 | ||
| 1min power frequency withstand voltage | kA | Intergranular 42 fracture surfaces between 48 layers | 35/28 (5min) | 20/2.5 |
| Lightning impulse withstand voltage | kA | Intergranular 42 fracture surfaces between 48 layers | 75 | |
| Shell protection grade | IP23 | IP23 | IP23 | |
| Noise level | dB | Oil transformer <55、Dry transformer ≤65 | ||
| Loop number | Amount | 1~6 | 4~30 | |
| Maximum reactive power compensation on the low-voltage side | kvar | 300 |
Detail Pictures
Frequently Asked Questions
QWhat is the YB-12 box-type transformer and what is it used for?
The YB-12 is a compact, prefabricated box-type transformer substation that integrates high-voltage switchgear, a power transformer, and low-voltage distribution equipment into a single enclosure. It is designed to provide complete power distribution solutions for urban buildings, industrial parks, residential communities, construction sites, and other scenarios requiring reliable and efficient power supply.
QHow much floor space does the YB-12 box-type transformer require compared to a conventional substation?
The YB-12 requires only 1/10 to 1/5 of the floor area of a conventional civil engineering substation of the same capacity, representing an 80%–90% reduction in footprint. This makes it ideal for land-scarce environments such as urban centers, commercial complexes, and high-density residential areas.
QHow long does it take to install and commission the YB-12 on-site?
Thanks to factory prefabrication, on-site construction volume is reduced by over 70%. The installation and commissioning period is typically shortened from the traditional 3–6 months to just 2–4 weeks. Users only need to prepare a flat foundation, as internal connections and tests are completed at the factory before delivery.
QWhat is the rated capacity range of the YB-12 transformer?
The transformer unit within the YB-12 supports a rated capacity range of 100 KVA to 1250 KVA, with a nominal voltage of 10/0.4 KV, making it suitable for a wide variety of small to medium-scale power distribution needs across different industries and applications.
QWhat is the shell protection grade of the YB-12, and is it suitable for outdoor installation?
The YB-12 features an IP23 shell protection grade for all three compartments (high-voltage room, transformer room, and low-voltage room). This provides protection against solid objects and water spray from various angles, making it suitable for both indoor and semi-outdoor installation environments.
QCan the YB-12 be used for temporary or short-term power supply projects?
Yes. The YB-12's compact and modular design makes it highly suitable for temporary power supply needs such as construction sites, sports venues, and event facilities. Its rapid deployment capability — from delivery to commissioning in as little as 2–4 weeks — makes it an ideal solution for projects with urgent or short-term power requirements.