Box-type Substation Recycling

Box Substation Recycling Huzhou Second-hand Box Transformer Recycling Company Professional Recycling of Prefabricated Substations A box substation is a compact integrated power distribution device that combines high-voltage switchgear, distribution transformers, low-voltage switchgear, electric energy metering equipment, and reactive power compensation devices according to a specific wiring scheme within one or several enclosures.

It integrates functions such as high-voltage power reception, transformer voltage reduction, and low-voltage power distribution into a single unit, installed in a moisture-proof, rust-proof, dust-proof, rodent-proof, fire-resistant, theft-resistant, insulated, fully enclosed, and movable steel structure box.
It is suitable for use in three-phase AC systems with a rated voltage of 10/0.4KV, serving for line and power distribution purposes.
A box substation is a compact integrated power distribution device that combines high-voltage switchgear, distribution transformers, low-voltage switchgear, electric energy metering equipment, and reactive power compensation devices according to a specific wiring scheme within one or several enclosures. It integrates functions such as high-voltage power reception, transformer voltage reduction, and low-voltage power distribution into a single unit, installed in a moisture-proof, rust-proof, dust-proof, rodent-proof, fire-resistant, theft-resistant, insulated, fully enclosed, and movable steel structure box. It is suitable for use in three-phase AC systems with a rated voltage of 10/0.4KV, serving for line and power distribution purposes.
Main features of box substations: They occupy a small area. Generally, the footprint of a box substation is only 5~6㎡, and can even be reduced to 3~3.5㎡. They are suitable for densely loaded industrial and mining enterprises, ports, and residential communities, allowing high-voltage power supply to extend to load centers, reducing low-voltage power supply radius, and minimizing losses. The number of low-voltage power supply lines is limited, typically 4~6 lines. They shorten on-site construction cycles and require less investment. Their novel and aesthetically pleasing appearance can harmonize with the surrounding environment of the substation.
Typically, the main component is a three-phase oil-immersed power transformer, with high and low-voltage switches, electric energy metering, lightning protection, and other components rationally arranged and compactly connected, all placed within a steel structure box room, integrated into one unit. It combines power transformation and distribution functions, along with metering devices, forming a complete, compact, space-saving, and easily installable receiving and distribution substation.
Box substations are primarily composed of multiple high-voltage switch systems, armored busbars, substation integrated automation systems, communication, remote control, metering, capacitor compensation, and DC power supply units, all installed in a moisture-proof, rust-proof, dust-proof, rodent-proof, fire-resistant, theft-resistant, insulated, fully enclosed, and movable steel structure box. They feature electromechanical integration and fully enclosed operation, with the following key characteristics:
Fully intelligent station design: The protection system uses substation microcomputer integrated automation devices, installed in a decentralized manner, enabling "four remotes" – remote measurement, remote signaling, remote control, and remote adjustment. Each unit operates independently, with comprehensive relay protection functions. Operating parameters can be set remotely, and humidity and temperature inside the box can be controlled, along with remote smoke alarm capabilities, meeting the requirements for unattended operation. Additionally, remote image monitoring can be implemented as needed.
Factory prefabrication: During design, as long as the designer creates the primary wiring diagram and designs the external equipment based on the actual requirements of the substation, they can select the specifications and model of the box substation provided by the manufacturer. All equipment is installed and tested at the factory, truly achieving factory-based substation construction and shortening the design and manufacturing cycle. On-site installation only requires box positioning, inter-box cable connections, output cable connections, protection setting verification, transmission tests, and other debugging tasks. The entire substation, from installation to operation, takes approximately 5 to 8 days, significantly reducing construction time.
Due to their compact structure, each box forms an independent system, allowing for flexible and varied combinations. On one hand, all components can be box-type, meaning both 35kV and 10kV equipment are installed inside the box, forming a fully box-type substation. Alternatively, only the 10kV switchgear can be box-type, with 35kV equipment installed outdoors and 10kV equipment along with the control and protection system installed inside the box. This combination is particularly suitable for the renovation of old substations in rural grid upgrades, where the existing 35kV equipment remains unchanged, and only a 10kV switchgear box is installed to meet the requirements for unattended operation. In summary, box substations do not have a fixed combination mode, and users can freely combine various modes based on actual needs to ensure safe operation.