A box-type substation, also known as a prefabricated substation, integrates high-voltage switchgear, distribution transformers, and low-voltage distribution equipment into a single, factory-prefabricated indoor or outdoor compact distribution system according to a specific wiring scheme. It seamlessly combines functions such as transformer voltage reduction and low-voltage distribution. Installed in a steel structure box that is moisture-proof, rust-proof, dust-proof, rodent-proof, fire-proof, theft-proof, insulated, fully enclosed, and movable. Box-type substations are categorized into European-style box-type substations, American-style box-type substations, and underground box-type substations.

Product Features

1. High degree of automation. Intelligent design with a microcomputer-based integrated automation system for protection, featuring remote measurement, remote signaling, remote control, and remote adjustment (“four remotes”).

2. Factory-prefabricated. Based on the main wiring diagram and external equipment design, the main equipment components' models and specifications are determined, installed, and tested at the manufacturing plant, ready for direct use on-site. High-voltage lines can be directly connected to the load center.

3. Advanced and reliable. The enclosure is manufactured using advanced processes, with the outer shell made of galvanized steel plates for corrosion resistance, inner panels made of aluminum alloy panels, and fire-resistant insulation materials in the interlayer. The enclosure is equipped with air conditioning and dehumidification devices, ensuring that internal equipment operates unaffected by external conditions, with a temperature range of -40°C to +40°C.

4. Flexible configuration options. The compact structure allows each enclosure to form an independent system, with flexible and versatile combination options.

5. Cost-effective. Compared to conventional substations of the same scale, costs are reduced by 40% to 50%, and the footprint is only one-tenth that of a conventional substation of the same scale. The design is aesthetically pleasing and harmonizes with the surrounding environment.

Application Conditions

1. Installation location: Outdoor;

2. Altitude: <1,000 meters;

3. Maximum ambient temperature: +40°C;

4. Maximum monthly average temperature: +35°C;

5. Maximum annual average temperature: +20°C;

6. Minimum ambient temperature: -25°C (outdoor);

7. Maximum daily temperature difference: 25°C;

8. Solar radiation intensity: 0.1 W/cm² (0.5 m/s);

9. Pollution level: Grade C;

10. Water resistance rating: Level 3;

11. Relative humidity: Maximum monthly average: 90% (20°C); Maximum daily average: 90% (20°C); 12. Earthquake resistance: Horizontal ground acceleration 0.2g; Vertical ground acceleration 0.19;

13. Installation site inclination: Not exceeding 3 degrees.