MV switching + transformer + LV distribution
Prefabricated transformer substation
A factory-assembled substation that coordinates medium-voltage switching, a distribution transformer and low-voltage distribution in one enclosure. Configure the complete equipment scope from your SLD, load and site requirements.
No drawing yet? Start with your country, application and a short description.
YB-12 / Product overview
One enclosure. Three coordinated equipment scopes.
Specify the interfaces between the compartments as carefully as the equipment within them.
Medium-voltage compartment
Define incoming and outgoing functions, protection, metering, cable entry and the connection to the transformer.
Transformer compartment
Coordinate capacity, voltage ratio, vector group, impedance, tapping, cooling and the installation environment.
Low-voltage distribution
Specify the incomer, outgoing feeders, metering, compensation and protection requirements from the load schedule.
Technical reference
Key specifications and their application
Use the reference values below to start selection. The confirmed unit, drawings and technical agreement define the supplied equipment.
On a small screen, scroll the table horizontally to see the scope of each value.
| Item | Reference | How to apply it |
|---|---|---|
| Product family | YB-12 | Prefabricated transformer substation |
| Typical catalogue system | 10 / 0.4 kV | Confirm the required HV/LV ratio for the project |
| HV equipment class | 12 kV | Maximum HV operating voltage stated in the catalogue |
| Rated frequency | 50 Hz | Published catalogue reference |
| Transformer capacity | Up to 3150 kVA | Project capability, subject to the confirmed design |
| Equipment arrangement | MV + transformer + LV | Complete scope agreed against the SLD / BOQ |
| Transformer selection | Project-specific | Capacity, type, cooling, protection and losses to be agreed |
| Enclosure and dimensions | Approved project drawings | Ventilation, access, cable routing and footprint to be confirmed |
Configuration & interfaces
Confirm the complete substation, including its interfaces
Agree the transformer and switching equipment together with the physical enclosure and installation requirements.
Electrical configuration
SLD, transformer data, protection philosophy, metering and LV feeder schedule define the supplied equipment.
Enclosure arrangement
Available footprint, doors, ventilation, cable entry and maintenance space define the project layout.
Site and delivery scope
State altitude, temperature, corrosion or seismic requirements, transport constraints and the required inspection documents.
Technical documents
Find the document for your next decision
Use product information for initial selection, then confirm project drawings and the evidence for the exact equipment you specify.
Engineering documents
YB-12 catalogue
Overview of the prefabricated substation and project configuration information.
Open catalogue PDFEngineering documents
GA & compartment layout
Coordinate the footprint, internal arrangement, ventilation, doors and cable interfaces.
Explore drawing supportEngineering documents
XG20051080 report
Request the existing 1600 kVA sample report and review its applicability to the proposed project.
Request the full reportWorking with Qiangchi
A clear path from requirements to agreed supply
For EPCs, panel builders, contractors and local partners, start with the equipment schedule and the responsibilities for the project.
Share the SLD / BOQ
Send your equipment requirements, destination and available specification.
Review the configuration
Clarify equipment scope, interfaces and applicable technical documents.
Receive the proposal
Review the project-specific technical proposal and quotation.
Agree the supply
Confirm the drawings, equipment, inspection documents and commercial scope.
The local partner handles local engineering and market-access requirements. Qiangchi supplies the equipment and documentation agreed for the order.
Selection questions
YB-12 questions
What is included in a YB-12 substation?
The coordinated arrangement contains MV switching and protection, a transformer compartment and LV distribution. The final equipment and enclosure scope are specified for the project.
What transformer capacity can be evaluated?
Project designs can be evaluated up to 3150kVA. The final transformer type, rating, cooling, enclosure and MV/LV arrangement must be confirmed together.
Does the available test report cover all capacities?
Report XG20051080 applies to the stated YB□ (STYB□)-12/0.4-1600 model and 1600kVA scope. It must not be treated as evidence for every capacity option.
What information should I send first?
Start with your country, required transformer capacity if known, and the application. We can then clarify voltage ratio, load, MV/LV configuration, protection, installation and delivery requirements.
Can the enclosure and drawings be customized?
Door arrangement, ventilation, cable entry, enclosure material, colour and protection degree can be coordinated with the project specification. GA dimensions follow the confirmed configuration.
Prepare your enquiry
Bring the details you already have
You do not need a complete tender package to start. These details help move the enquiry towards a configuration and quotation.
- Country, application and load requirements
- HV/LV voltage ratio and transformer capacity
- SLD / BOQ and transformer requirements
- MV protection and LV feeder schedule
- Available footprint, cable entry and site conditions
- Quantity, inspection scope and delivery schedule
Discuss your YB-12 requirement
Turn the project requirements into an equipment scope.
Share your application, drawings or specification. We can help clarify the configuration and documents needed for a project-specific offer.
Prefer email? sales@zgqci.com