Compact 10kV Low Noise Eco-Friendly Prefabricated Substation by China Suppliers and Factory for Residential Areas
Multiple Safety Guarantees and Convenient Maintenance Features
1
๐ Multi-layer Physical Protection System
The box body adopts anti-theft design, and the door lock has anti-picking function. Mechanical interlock or electrical interlock is set in the high-voltage room and the low-voltage room respectively, strictly preventing accidental entry into the energized compartments. The transformer room is equipped with an independent pressure relief channel, which can quickly release pressure in case of a fault, ensuring the safety of personnel and equipment.
2
๐ Intelligent Monitoring and Early Warning
An optional intelligent monitoring system can be equipped. It can monitor parameters such as transformer temperature, load rate, key node temperature, access status, and environmental temperature and humidity in real time. The data is transmitted wirelessly to the monitoring center, enabling remote operation and fault early warning, transforming "scheduled maintenance" into "condition-based maintenance".
3
๐ง Humanized Maintenance Design
Each functional room is equipped with an independent maintenance door, and the width of the maintenance passage complies with safety standards. The high-voltage cable heads are designed with a touchable feature, allowing for safe operation without the need for special tools during maintenance. The main components are all designed with front maintenance features, enabling all maintenance operations to be completed from the front.
4
๐ Quick Relocation and Reuse
The bottom of the box is equipped with standard lifting holes and transportation fixation points, allowing for overall handling using general lifting equipment. During relocation, only the incoming and outgoing cable connections need to be disconnected, significantly enhancing the equipment's utilization rate and return on investment. It is particularly suitable for the rental market and temporary power supply scenarios.
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 | โ | 100~2500 |
| Rated Frequency | Hz | 50 | 50 | 50 |
| Rated Capacity | KVA | โ | 100~1250 | โ |
| Rated Thermal Stability Current | kA | 20/4S | โ | 30/15 |
| Rated Dynamic Stable Current (Peak) | kA | 50 | โ | 63 |
| Rated Closing Short-Circuit Current (Peak) | kA | 50 | โ | 15~30 |
| Rated Breaking Short-Circuit Current | kA | 31.5 | โ | โ |
| Rated Starting Load Current | A | 630 | โ | โ |
| 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 | โ |
| Shell Protection Grade | โ | IP23 | IP23 | IP23 |
| Noise Level | dB | โ | Oil transformer <55, Dry transformer โค65 | โ |
| Loop Number | Amount | 1~6 | โ | 4~30 |
| Maximum Reactive Power Compensation on the Low-Voltage Side | kvar | โ | โ | 300 |
Detail Pictures
Frequently Asked Questions (FAQ)
Q
What anti-theft and safety interlock features does the box-type transformer provide?
The box body is designed with an anti-theft structure and a door lock with anti-picking function. Both the high-voltage and low-voltage rooms are equipped with mechanical or electrical interlocks to strictly prevent accidental entry into energized compartments. An independent pressure relief channel in the transformer room further ensures personnel and equipment safety in the event of a fault.
Q
Does the box-type transformer support remote monitoring and intelligent fault warning?
Yes. An optional intelligent monitoring system is available that monitors transformer temperature, load rate, key node temperature, access status, and environmental temperature and humidity in real time. Data is wirelessly transmitted to the monitoring center, enabling remote operation and condition-based maintenance instead of traditional scheduled maintenance.
Q
What is the rated capacity range of the transformer in this box-type substation?
The transformer's rated capacity ranges from 100 KVA to 1250 KVA, with a nominal voltage of 10/0.4 KV and a rated frequency of 50 Hz, making it suitable for a wide range of industrial and commercial power supply applications.
Q
Is the box-type transformer easy to relocate and reuse on different project sites?
Yes. The bottom of the unit is equipped with standard lifting holes and transportation fixation points, allowing relocation using standard lifting equipment. Only the incoming and outgoing cable connections need to be disconnected during relocation, making it highly suitable for rental markets and temporary power supply scenarios with a strong return on investment.
Q
What is the shell protection grade, and what noise level can be expected?
All three compartments โ the high-voltage electrical cabinet, transformer, and low-voltage electrical cabinet โ carry an IP23 shell protection grade. In terms of noise, oil-type transformers produce less than 55 dB, while dry-type transformers produce no more than 65 dB, ensuring quiet and reliable operation.
Q
How is routine maintenance performed, and does it require special tools?
Each functional room has an independent maintenance door with passage widths compliant with safety standards. The high-voltage cable heads feature a touchable design that allows safe operation without special tools. All major components support front-access maintenance, meaning all maintenance tasks can be completed from the front of the unit, greatly simplifying routine servicing.




