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China YBM□-12/0.4 Prefabricated Substation - High Voltage Switchgear & Transformer | Suppliers & Factory

The YBM□-12/0.4 high/low voltage prefabricated substation, commonly known as a European box-type substation, is a cutting-edge, compact distribution solution. This innovative device integrates high voltage switchgear, a power transformer, and low voltage distribution equipment into a robust closed steel structure, making it an ideal choice for efficient energy management. As a leading manufacturer in China, our factory excels in producing high-quality substation solutions for various applications. Whether you're a utility provider or a commercial entity, trust our expertise as one of the top suppliers in the industry for superior performance and reliability in power distribution

Model YBM□-12/0.4

Product Details

This compact product features a functional design with three compartments: high-voltage, transformer, and low-voltage rooms. Its standout advantages include a highly integrated system and compact footprint, occupying merely 1/10 to 1/5 of the space required by conventional substations of equivalent capacity, significantly reducing civil engineering work and construction costs. The enclosure boasts a high IP34D protection rating, providing effective dust and moisture resistance for outdoor applications.

Key Advantages

🏗️

Compact Footprint

Only 1/10 to 1/5 of the space needed by conventional substations of the same capacity.

🔒

IP34D Protection

High-level dust and moisture resistance, fully suited for outdoor installation environments.

⚡

Highly Integrated

Three-compartment layout — high-voltage, transformer, and low-voltage — in one unified enclosure.

💰

Lower Civil Costs

Significantly reduces civil engineering work and overall construction expenditure.

🔄

Flexible Operation

Supports ring network, dual power supply, and radial terminal power supply configurations.

📉

Reduced Line Loss

Can be deployed close to load centers, effectively minimizing transmission line energy loss.

Main Technical Parameters

Parameter	Specification
Rated Voltage	12 / 0.4 kV
Transformer Capacity	100 kVA – 1,250 kVA and above
Transformer Type	Oil-Immersed Dry Type
Enclosure Protection Rating	IP34D
Compartment Structure	High-Voltage Room / Transformer Room / Low-Voltage Room
Space Requirement vs. Conventional	1/10 to 1/5 of equivalent capacity substations

Supported Power Supply Modes

🔁

Ring Network Power Supply

🔌

Dual Power Supply

📡

Radial Terminal Power Supply

Typical Application Areas

🏘️ Urban Residential Areas

🏬 Commercial Centers

🏭 Industrial Parks

🏛️ Public Facilities

🚧 Temporary Construction Sites

Frequently Asked Questions

What is a compact/prefabricated substation and how does it differ from a conventional substation?

A compact prefabricated substation integrates high-voltage switchgear, a transformer, and low-voltage distribution equipment into a single factory-built enclosure. Unlike conventional substations that require large dedicated buildings and extensive civil works, this product occupies only 1/10 to 1/5 of the space, dramatically reducing installation time and construction costs.

What transformer types are compatible with this substation?

The unit supports both oil-immersed transformers and dry-type transformers. The choice depends on the installation environment, safety requirements, and local regulations. Dry-type transformers are often preferred for indoor or sensitive environments, while oil-immersed types are commonly used outdoors.

What does the IP34D protection rating mean for outdoor use?

The IP34D rating indicates the enclosure is protected against solid objects larger than 1mm (level 3), protected against water spray from any direction (level 4), and includes a "D" suffix for protection against tools and wire contact. This makes it highly suitable for outdoor installations exposed to dust, rain, and environmental contaminants.

What power supply configurations does this substation support?

This substation is designed for flexible deployment within distribution networks. It supports ring network power supply for improved reliability and continuity, dual power supply for redundancy and critical load protection, and radial terminal power supply for straightforward end-point distribution — making it adaptable to a wide range of grid topologies.

What transformer capacity range is available?

The transformer capacity commonly ranges from 100 kVA to 1,250 kVA, with higher capacities also available depending on project requirements. This wide range ensures the substation can serve everything from small residential developments to large industrial or commercial complexes.

How does this substation help reduce energy loss in the distribution network?

Because of its compact size and modular design, the substation can be installed much closer to the actual load centers — such as inside residential communities or within industrial parks — rather than at a remote central location. This proximity significantly shortens the length of low-voltage distribution lines, directly reducing resistive line losses and improving overall system efficiency.