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Compact 10kV Prefabricated Substation from China Suppliers | Space-Saving Factory Design for Urban Power Solutions
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 | — | — |
| 1min Power Frequency Withstand Voltage | kV | Intergranular 42 fracture surfaces between 48 layers | 35/28 (5min) | 20/2.5 |
| Lightning Impulse Withstand Voltage | kV | 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 (FAQ)
Q
What power supply modes does the ring network solution support?
The ring network solution supports advanced power supply modes including dual-ring network and single-ring network configurations. Each unit is connected through prefabricated cables, forming a complete ring network system with power reliability reaching 99.99%.
Q
How does the dual power automatic switching system work?
The system is equipped with an automatic transfer switch (ATS) and corresponding protection systems. When the main power supply fails, the backup power is automatically switched on within an extremely short period of time, ensuring uninterrupted power supply for critical facilities such as hospitals, data centers, and important production lines.
Q
What is the rated capacity range of the transformer in this box-type substation?
The transformer supports a rated capacity range of 100 to 1250 KVA, making it suitable for a wide variety of commercial, industrial, and infrastructure power supply scenarios.
Q
Can the system be expanded if future load requirements increase?
Yes. The modular design concept reserves standard interfaces for electrical wiring, allowing quick expansion by replacing the transformer module or increasing the capacity of the low-voltage cabinet module. This approach reduces expansion costs during the product's life cycle by more than 50%.
Q
What is the shell protection grade of this box-type transformer substation?
All three major components — the high-voltage electrical cabinet, transformer, and low-voltage electrical cabinet — are rated at IP23, providing reliable protection against solid particles and water ingress in standard outdoor and indoor environments.
Q
What is the maximum reactive power compensation available on the low-voltage side?
The low-voltage side supports a maximum reactive power compensation of 300 kvar, which helps improve power factor, reduce energy losses, and optimize overall system efficiency for end users.