15515673159
Prefabricated Substation 10kV Miniaturized Compact Design Space Saving Urban Power Use
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Flexible grid connection and system compatibility capabilities
1.Complete ring network solution: Configurable fully insulated and fully sealed ring network cabinet units, enabling advanced power supply modes such as dual-ring network and single-ring network. Each unit is connected through prefabricated cables, forming a complete ring network system. In the event of a fault in any section of the line, it can be quickly isolated and power restored, with power reliability reaching 99.99%.
2.Dual power automatic switching system: It can provide a complete dual power access solution for important users, equipped with an automatic transfer switch (ATS) and corresponding protection systems. When the main power supply fails, the backup power can be automatically switched on within an extremely short period of time, ensuring uninterrupted power supply for critical loads such as hospitals, data centers, and important production lines.
3.Standardized radial terminal configuration: To meet the radial power supply requirements of ordinary users, an economical and efficient standardized configuration solution is provided. On the high-voltage side, a load switch-fuse combination electrical apparatus can be used to protect the transformer. On the low-voltage side, intelligent frame circuit breakers and molded case circuit breakers are configured to form a complete protection system.
4.Future-oriented system scalability: Adopting a modular design concept, standard interfaces are reserved for electrical wiring. When the user's load increases in the future, it can be expanded quickly by replacing the transformer module or increasing the capacity of the low-voltage cabinet module. This design reduces the expansion cost during the product's life cycle by more than 50%.
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 | ||
| lmin 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
FAQ
Find answers to common questions about 10kV compact prefabricated substations, including space-saving design, transformer capacity, distribution schemes, outdoor installation and project customization.
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What is this 10kV compact prefabricated substation mainly used for?
This prefabricated substation is designed for **10kV urban and industrial power distribution systems**. Typical applications include: * Residential communities * Commercial buildings * Industrial parks * Urban distribution networks * Infrastructure projects * Temporary power projects * Distribution network renovation Its compact structure makes it particularly suitable for projects with limited installation space.
What equipment is integrated inside the substation?
A typical configuration integrates: * 10kV medium-voltage switchgear * Distribution transformer * Low-voltage switchgear * Protection devices * Metering equipment * Control and auxiliary systems The internal configuration can be customized according to the project single-line diagram.
What transformer capacity can be installed?
The transformer capacity can be selected according to the project load. Capacity selection should consider: * Total connected load * Maximum demand * Load factor * Future expansion * Motor loads * Commercial or residential load characteristics Please provide the required kVA capacity or load list for technical selection.
How much installation space can a compact substation save?
Space saving is one of the main advantages of this product. By integrating medium-voltage equipment, transformer, and low-voltage distribution equipment into one enclosure, the required footprint can be significantly reduced compared with a conventional civil substation. The exact dimensions depend on transformer capacity, number of circuits, internal layout, and ventilation requirements.
Can it be used for ring-main, dual-power, and radial distribution systems?
Yes. The substation can be configured for different power distribution schemes, including: * Ring-main distribution * Dual-power supply * Radial terminal distribution The final configuration should be confirmed according to the project single-line diagram and protection requirements.
Is this compact substation suitable for outdoor installation?
Yes. This product is designed for outdoor installation. Before final design, we recommend confirming: * Ambient temperature * Altitude * Relative humidity * Rain and wind conditions * Pollution level * Seismic requirements * Installation location Special environmental conditions should be specified before production.
How is heat dissipation managed inside the compact enclosure?
The ventilation and heat dissipation design is determined according to: * Transformer losses * Internal equipment heat generation * Enclosure dimensions * Ambient temperature * Operating load Natural ventilation is commonly used, while additional ventilation measures can be added when required by the project conditions.