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Compact Prefabricated Substation 10kV - Space-Saving Urban Power Solution by China Suppliers and Factory
Flexible Grid Connection and System Compatibility Capabilities
1
Complete Ring Network Solution 99.99% Reliability
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 ATS
Provides 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
Meets the radial power supply requirements of ordinary users with an economical and efficient standardized configuration solution. On the high-voltage side, a load switch-fuse combination electrical apparatus protects the transformer. On the low-voltage side, intelligent frame circuit breakers and molded case circuit breakers form a complete protection system.
4
Future-Oriented System Scalability 50%+ Cost Savings
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 | — | — |
| 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 (Low-Voltage Side) | kvar | — | — | 300 |
Detail Pictures
Frequently Asked Questions
Q
What is the power reliability of the ring network solution in this box-type transformer system?
The complete ring network solution achieves a power reliability of 99.99%. In the event of a fault in any section of the line, the system can quickly isolate the affected segment and restore power supply, minimizing downtime and ensuring continuous electricity delivery.
Q
What types of critical facilities can benefit from the dual power automatic switching system?
The dual power automatic switching system (ATS) is especially suited for critical facilities such as hospitals, data centers, and important industrial production lines. When the main power supply fails, the backup power is switched on automatically within an extremely short time, ensuring uninterrupted operation of essential loads.
Q
What is the rated capacity range of the transformer in this box-type substation?
The transformer supports a rated capacity range of 100 KVA to 1250 KVA, making it suitable for a wide variety of applications from small commercial facilities to medium-scale industrial users requiring higher power demands.
Q
How does the modular design reduce long-term expansion costs?
The system adopts a modular design with standard interfaces reserved for electrical wiring. When future load growth requires additional capacity, users can simply replace the transformer module or expand the low-voltage cabinet module without a complete system overhaul. This approach reduces expansion costs over the product's life cycle by more than 50%.
Q
What is the shell protection grade of the box-type transformer system?
All three main components — the high-voltage electrical cabinet, the transformer, and the low-voltage electrical cabinet — are rated at IP23 shell protection grade, providing reliable protection against solid objects and water ingress in standard outdoor and indoor installation environments.
Q
What is the maximum reactive power compensation available on the low-voltage side?
The low-voltage side of the system supports a maximum reactive power compensation of 300 kvar. This capability helps improve power factor, reduce energy losses, and enhance overall system efficiency, which is particularly beneficial for industrial users with significant reactive power demands.