A pre-assembled (or “box-type”) substation integrates high-voltage equipment, transformers, and low-voltage equipment into a compact, complete power distribution unit. These units are designed to receive and distribute electrical energy in various settings—such as urban high-rises, residential communities, high-tech development zones, small-to-medium-sized factories, mines, oilfields, and temporary construction sites. The YB/ZB series substations are characterized by their high level of integration, compact size, reliable operation, ease of maintenance, and portability. Compared to conventional civil-engineered substations, a box-type substation of the same capacity typically occupies only one-tenth to one-fifth of the footprint, significantly reducing design and construction workloads as well as overall construction costs. They are suitable for use in ring-main, dual-power supply, or radial/terminal distribution systems, representing a modern solution for the construction and renovation of urban and rural substations. The YB/ZB series substations comply with the national standard GB/T 17467, “High-voltage/low-voltage prefabricated substation.”
Custom-made according to drawing specifications.
Junneng supplies power cables, optical fiber communication cables, transformers, switchgear, distribution cabinets, distribution boxes and supporting electrical equipment for power distribution projects.
Yes. We can support model selection, voltage level matching, cabinet configuration, cable specification review and other customization needs according to drawings or technical requirements.
Materials, production processes, assembly details and finished products are checked through internal inspection and testing procedures before delivery.
Yes. We support overseas buyers with requirement review, quotation communication, product matching, documentation follow-up and shipment coordination.
Please share the product type, model or drawing, voltage/current requirements, quantity, application environment and any required standards or certificates.
We can provide technical communication, product selection support, installation reference information and after-sales coordination for related project applications.
Our products are used in power transmission and distribution, industrial facilities, commercial buildings, renewable energy systems, microgrids and optical fiber communication projects.
After order confirmation, we coordinate production follow-up, packing, documentation and shipment updates so customers can track delivery progress clearly.
Relevant certificates, product specifications, inspection documents or test reports can be discussed according to the product category and project requirement.
Tell us your application, power parameters, installation environment and project goals. Our team will recommend suitable product options and confirm key technical details with you.
