Fully Buried All-Concrete Substation
Introduction to Fully Buried All-Concrete Substation
A safe, durable, and reliable solution for underground power equipment installation
Fully buried all-concrete substation is a type of prefabricated distribution substation installed underground with a reinforced concrete body. These substations are designed to optimize installation space in high-density and high-traffic environments, especially in urban distribution networks. The main equipment, including the transformer and low and medium voltage switchgears, are housed inside the concrete chamber with natural ventilation. The design allows all equipment to be moved through the hatches located on the substation roof, while operational access for switching and maintenance is provided via a manhole also installed on the roof. These substations have an intelligent system to prevent surface water intrusion and a multi-stage emergency drainage system.
Features and Technical Specifications of Fully Buried Concrete Substation
- Installation Type: Completely buried underground with visual concealment capability
- Transformer Type: Hermetically sealed oil-filled
- Auxiliary Equipment: Float switches, drainage pumps, access ladder, internal lighting
- Voltage Level: Up to 24kV
- Rated Power: Up to 800kVA, customizable based on customer requirements
Applications of Fully Buried Concrete Substation
- Urban distribution networks with space limitations
- Areas with visual aesthetic requirements or restrictions on above-ground installations
Advantages of Fully Buried Substations
- Completely hidden installation: Suitable for areas where land surface usage or visual concealment is required
- High Safety: Enhanced security under special and emergency conditions
- Moisture Resistance: Concrete body structure resistant to humidity and damp environments
- Stable Operation: Preventive measures designed to ensure uninterrupted equipment performance
- No Occupation of Ground Space: Keeps sidewalks and public areas unobstructed
FAQ
- What is a fully buried all-concrete substation?
- A type of power distribution substation with a robust concrete structure that is completely buried underground and can be installed without the need for a foundation.
- Under what conditions are these substations used?
- They are typically used in urban projects and environments where space is limited and quick installation is required.
- Are these substations portable?
- Yes, their structure is designed in a way that allows them to be transported along with the equipment and reinstalled at another location.
- What type of transformer is used in this substation?
- Generally, hermetically sealed oil-filled transformers are used, depending on environmental conditions and customer requirements.
- What is the key advantage of this substation compared to other types?
- The main advantage is that it does not occupy surface ground space and offers high resistance against environmental and human factors.






