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China Suppliers Factory Low Noise Eco-Friendly 10kV Compact Prefabricated Substation for Residential Areas
Multiple safety guarantees and convenient maintenance features
1. 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. 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. 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. 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 | 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
Frequently Asked Questions (FAQ)
Q: What safety features prevent unauthorized access to the energized compartments?
The transformer enclosure is equipped with an anti-theft design and anti-picking door locks. In addition, mechanical or electrical interlocks are set up in both high-voltage and low-voltage rooms to strictly prevent accidental entry into energized compartments.
Q: How does the intelligent monitoring system improve maintenance?
The optional intelligent monitoring system tracks parameters like transformer temperature, load rate, environmental humidity, and access status in real time. It transmits this data wirelessly, enabling remote operation and early warnings, which shifts maintenance from scheduled intervals to condition-based actions.
Q: Is the maintenance process convenient and safe for technicians?
Yes. Every functional room features an independent maintenance door with safety-compliant passage widths. High-voltage cable heads are touchable for safe operation without special tools, and all main components support front-only maintenance operations.
Q: Can this box-type transformer be easily relocated to temporary sites?
Absolutely. The bottom of the box is equipped with standard lifting holes and transportation fixation points. For relocation, you only need to disconnect the incoming and outgoing cables, making it highly suitable for temporary power supplies and the rental market.
Q: What are the shell protection grade and noise levels for the transformer?
The shell protection grade is IP23 across the high-voltage cabinet, transformer, and low-voltage cabinet. The noise level is kept under 55 dB for oil transformers and 65 dB or lower for dry-type transformers.