15515673159
China Suppliers Factory Outdoor Prefabricated Substation 10kV - Compact Design for Urban Power Distribution
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 box-type transformer support?
The box-type transformer supports multiple 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 activated within an extremely short period of time, ensuring continuous and uninterrupted power for critical loads such as hospitals, data centers, and important production lines.
Q
What is the rated capacity range of the transformer?
The transformer's rated capacity ranges from 100 KVA to 1250 KVA, making it suitable for a wide variety of application scenarios from small commercial facilities to large industrial installations.
Q
What is the shell protection grade of this box-type transformer?
All three main components — the high-voltage electrical cabinet, the transformer, and the low-voltage electrical cabinet — are rated at IP23, providing reliable protection against solid objects and water ingress under standard operating conditions.
Q
Can the system be expanded if future load requirements increase?
Yes. The product adopts a modular design concept with standard interfaces reserved for electrical wiring. Future expansion can be achieved by replacing the transformer module or increasing the capacity of the low-voltage cabinet module, reducing lifecycle expansion costs by more than 50%.
Q
What is the maximum reactive power compensation available on the low-voltage side?
The low-voltage side of this box-type transformer supports a maximum reactive power compensation of 300 kvar, helping to improve power factor, reduce energy losses, and enhance overall system efficiency.