As a trusted customized box-type substation manufacturer, we specialize in delivering high-quality, energy-efficient, and safety-driven power equipment tailored for modern electrical networks. Our substations combine advanced engineering with modular design, ensuring reliability, compactness, and long-term stability. Widely applied across industrial plants, commercial complexes, renewable energy systems, and urban grids, our products provide efficient power transformation and secure distribution in any environment.
American-style Pad-Mounted Transformers
What Is a Box-Type Substation?
A box-type substation—also known as a compact or prefabricated substation—is an integrated power solution that includes transformers, high-voltage and low-voltage switchgear, protection devices, and auxiliary systems in a sealed enclosure. It offers a ready-to-install structure that is pre-assembled and tested in the factory, ensuring rapid deployment and consistent quality. Compared with conventional substations, box-type designs require less space, reduce civil engineering work, and improve system reliability, making them ideal for modern smart grid and distributed energy applications.
Key Advantages of Customized Box-Type Substations
Compact and Modular Design: Our substations feature a space-saving layout that simplifies transportation and installation, especially suitable for urban centers and renewable energy fields.
Superior Safety and Reliability: Each unit is manufactured in compliance with IEC, GB, and ANSI standards, using flame-retardant materials, weatherproof structures, and reinforced grounding systems for enhanced operational safety.
High Energy Efficiency: Transformers are built with low-loss magnetic cores and advanced insulation systems to improve energy utilization and reduce operating costs throughout the product lifecycle.
Low Maintenance and Easy Operation: The fully enclosed and compartmentalized design allows for straightforward inspection, maintenance, and part replacement without service interruption.
Flexible Customization: Customers can specify voltage class, capacity, internal configuration, enclosure type, and cooling method to meet diverse project and environmental requirements.
Box 100–1000kVA European-Style Combined Substation
Structure and Functional Components
A standard box-type substation consists of three main sections — a high-voltage compartment, a transformer compartment, and a low-voltage compartment, each playing a critical role in power transformation and distribution.
High-Voltage Compartment: Houses circuit breakers, load switches, fuses, and surge arresters for safe power input and overvoltage protection.
Transformer Compartment: Contains dry-type or oil-immersed transformers designed to achieve high efficiency, thermal stability, and low noise operation under continuous load conditions.
Low-Voltage Compartment: Includes low-voltage switchgear, metering, and control devices for precise and safe power distribution to end users.
Industry Applications
Our customized box-type substations are widely used in various sectors, enabling reliable and efficient power distribution for different industries.
Industrial Facilities: Provide stable energy supply for production lines, heavy machinery, and automated systems, ensuring minimal downtime.
Commercial Buildings: Deliver high-quality power for data centers, office complexes, shopping malls, and smart campuses.
Residential Communities: Ensure safe, continuous power distribution for urban housing, schools, and public utilities.
Renewable Energy Projects: Play a vital role in connecting solar and wind power systems to national grids, improving renewable energy utilization.
Transportation and Infrastructure: Serve in railways, airports, subways, and tunnels, providing uninterrupted power for critical infrastructure operations.
Tailored Design and Engineering Support
As a professional box-type substation manufacturer, we provide complete customization and technical consulting services. From schematic design and component selection to appearance optimization, our engineering team ensures every substation meets your technical and aesthetic requirements. Available in 10kV, 20kV, and 33kV models, each solution is tailored to fit regional standards and project specifications. OEM and ODM cooperation are also available to support global customers with turnkey power solutions.
Quality Assurance and Compliance
All products are produced under ISO 9001-certified quality systems and comply with international standards such as IEC, GB, and CE. Each substation undergoes strict type testing and factory inspection to guarantee stability, durability, and reliability in harsh operating conditions — including high temperature, humidity, salt fog, and dust exposure. Our quality-first philosophy ensures long-lasting performance and customer satisfaction worldwide.
Energy Efficiency and Environmental Responsibility
We integrate advanced materials and smart design to improve system performance and environmental sustainability. By using high-grade insulation, energy-saving transformer cores, and low-noise cooling systems, we minimize energy loss and noise pollution. The enclosure adopts anti-corrosion coatings or aluminum alloy shells for enhanced durability, while optional thermal insulation and ventilation systems maintain optimal internal conditions, extending equipment life.
| No. | Name | Unit | Data | |
| 1 | Rated voltage | HV | kV | 10、20、35 |
| LV | kV | 0.315～0.5 | ||
| 2 | Ratedcapacity | kVA | 630～5000 | |
| 3 | No-load voltage regulation | ±2×2.5% | ±2×2.5% | |
| 4 | Vectorgrour | Dyn11、Dyn11yn11、Yd11d11 | ||
| 5 | nsulationleve | Lightning impulse withstandvoltage | kV | 75、125、200 |
| Power frequencywithstandvoltage(HV) | kV | 35、55、85 | ||
| Power frequencywithstandvoltage(LV) | kV | 5 | ||
| Secondary controlloop | 2.0 | |||
| 6 | Noiselevel | dB | 60 | |
| 7 | Protection class | Oil tankIP68,high andlowvoltage chamberIP54 |
Why Partner with Us?
Extensive Manufacturing Experience: With over 15 years of expertise, we are recognized for delivering efficient, safe, and custom-engineered substation solutions.
Global Export and Project Service: Our substations have been successfully installed in over 30 countries across Asia, Africa, Europe, and South America.
Factory-Direct Competitive Pricing: As a manufacturer, we offer cost-effective solutions with consistent quality and fast delivery times.
Comprehensive After-Sales Support: Our technical team provides guidance for installation, operation, and long-term maintenance to ensure smooth project execution.
As a global customized box-type substation manufacturer, we are dedicated to delivering innovative, safe, and energy-efficient power equipment that meets the demands of modern infrastructure and renewable energy projects. Our substations embody reliability, precision, and sustainability — making them an ideal choice for industrial, commercial, and utility-scale applications. Contact our engineering experts today to receive a customized proposal that matches your specific technical and operational needs.
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