Product Overview
Sanlita’s 630/800kVA outdoor box-type substation is a fully integrated, prefabricated solution designed for solar photovoltaic (PV) power generation systems and utility-scale energy storage applications. This 10kV class transformer station combines a high-efficiency transformer, medium-voltage switchgear, and low-voltage distribution in a weatherproof enclosure, enabling rapid on-site installation and reliable operation in diverse climates. Ideal for commercial & industrial (C&I) solar projects and renewable energy parks, it ensures safe power conversion and grid interconnection.
Technical Specifications
| Parameter | Specification |
|---|---|
| Rated Power | 630 kVA / 800 kVA (optional) |
| Primary Voltage | 10 kV (10.5 kV / 11 kV optional) |
| Secondary Voltage | 0.4 kV (customizable) |
| Frequency | 50/60 Hz |
| Cooling Method | ONAN (Oil Natural Air Natural) |
| Enclosure Protection | IP54 (weatherproof, dustproof) |
| Insulation Level | LI 75 kV / AC 35 kV (primary side) |
| Standards | IEC 60076, GB/T 17467, IEEE C57.12.28 |
| Operating Temperature | -25°C to +50°C |
| Dimensions (L×W×H) | Customizable based on configuration |
Why Choose Sanlita
- Factory Direct: Eliminate middlemen and enjoy competitive pricing with full quality control from our ISO-certified facility.
- Custom Engineering: Tailor voltage ratios, enclosure materials, and internal layout to match your solar or storage project requirements.
- Global Compliance: Products meet IEC, IEEE, and local grid codes, ensuring smooth certification and grid connection worldwide.
- Proven Reliability: Over 10,000 units deployed in solar farms and industrial parks across 30+ countries.
- End-to-End Support: From design consultation to after-sales technical assistance, our team ensures your project success.
FAQ
Q: What is the typical lead time for this box-type substation?
A: Standard lead time is 30-45 days after order confirmation and technical approval. Custom configurations may require additional time.
Q: Can this substation be integrated with existing solar inverters and battery storage systems?
A: Yes, our substation is designed with flexible low-voltage interfaces compatible with most inverters and BMS systems. We can also provide customized coupling solutions.
Q: What maintenance is required for the outdoor enclosure?
A: The enclosure is designed for minimal maintenance. Periodic inspection of seals, cooling fans, and oil level is recommended every 6-12 months. Sanlita provides a detailed maintenance manual.
Q: Do you provide installation supervision or commissioning services?
A: Yes, we offer remote or on-site commissioning support by our experienced engineers. Additional training for local teams can be arranged.
Q: Is the substation suitable for high-altitude or coastal environments?
A: Absolutely. We can adapt the insulation, corrosion protection, and cooling system for altitudes up to 4000m or coastal areas with high salinity. Please specify your site conditions.








