Direct Recommendation
A compact-substation transformer must be selected as part of the complete MV-transformer-LV package. Coordinate capacity, voltage ratio, losses, cooling, compartment heat rejection, protection, cable interfaces, enclosure layout, and package acceptance requirements.
For industrial parks, commercial developments, utilities, municipal infrastructure, and renewable projects, the useful deliverable is not another broad definition. It is a marked specification, a deviation list, and enough project information for a supplier to identify the correct equipment family. Start from Compact Substations; those pages define the current public Jinxing product scope.
Decision Summary
- Buyer intent: Package selection.
- Project context: industrial parks, commercial developments, utilities, municipal infrastructure, and renewable projects.
- First evidence to prepare: the approved single-line diagram plus the equipment data sheet, load schedule, or feeder schedule that applies to this request.
- Expected supplier response: a model-family match, marked technical exceptions, applicable evidence, missing inputs, and a defined quotation boundary.
Product Scope Relevant to compact substation transformer
The rows below are limited to products already published on the Jinxing website. Use them to identify the relevant family and voltage class, then verify the actual rating, arrangement, components, tests, and documents against the project specification.
| Jinxing product | Public voltage scope | Typical website application | Use this page to |
|---|---|---|---|
| American Compact Substation | 10kV / 11kV / 20kV / 35kV project classes | Outdoor utility, commercial, and industrial distribution | Check the model family and send project-specific requirements |
| European Compact Substation | 10kV / 11kV / 20kV / 35kV project classes | Commercial buildings, infrastructure, and industrial parks | Check the model family and send project-specific requirements |
| YB Prefabricated Substation | Project-based MV/LV configuration | Factory distribution, parks, substations, and municipal projects | Check the model family and send project-specific requirements |
Selection logic
Select the architecture first, then verify rating, duty, environment, interfaces, evidence, and lifecycle responsibilities. For compact substation transformer, the review should produce the following evidence or decision at each stage.
| Review area | Question to close | Evidence or output |
|---|---|---|
| Architecture | Which equipment family and arrangement fits the network position and operating philosophy? | Single-line diagram and functional description |
| Rating and duty | Can the proposed model carry normal, starting, fault, and future duties? | Load, fault, and protection studies |
| Environment and interfaces | Will it fit the site, cable system, ventilation, access, and maintenance plan? | Site data and layout constraints |
| Verification | Are evidence, tests, drawings, and quotation scope aligned with the final configuration? | Compliance and document schedules |
Stop and clarify the offer when any of these red flags appear:
- Selecting from capacity or voltage alone.
- Ignoring room, cable, environmental, or maintenance constraints.
- Treating a sample document as proof for the final configuration.
Six Technical Decisions to Record
These six decisions are selected for the package selection behind compact substation transformer.
| Decision | Why it changes the offer | Required project input |
|---|---|---|
| Package boundary | Define which transformer, MV, LV, enclosure, protection, metering, auxiliaries, and site works are included in the supplier scope. | Record the project value or mark it as an open package boundary clarification |
| Voltage class and ratio | Match the upstream supply, downstream system, insulation coordination, and local utility requirements. | Record the project value or mark it as an open voltage class and ratio clarification |
| Capacity and load profile | Use connected load, demand, motor starting, harmonics, redundancy, and future expansion rather than nameplate totals alone. | Record the project value or mark it as an open capacity and load profile clarification |
| Cooling and temperature rise | Check heat rejection, ventilation, ambient temperature, loading pattern, and the supplier's declared cooling method. | Record the project value or mark it as an open cooling and temperature rise clarification |
| Protection and coordination | Confirm breaker or fuse duty, relay functions, CT/VT inputs, selectivity, earthing, and upstream/downstream coordination. | Record the project value or mark it as an open protection and coordination clarification |
| Panel or package layout | Align feeder sequence, busbar arrangement, metering, cable rooms, ventilation, transport sections, and future spare ways. | Record the project value or mark it as an open panel or package layout clarification |
Engineering Review Notes
1. Package boundary
Define which transformer, MV, LV, enclosure, protection, metering, auxiliaries, and site works are included in the supplier scope. In the context of industrial parks, commercial developments, utilities, municipal infrastructure, and renewable projects, write this decision into the compact substation transformer data sheet and ask the supplier to mark any deviation. The review output should be a value, drawing reference, calculation input, or explicit technical clarification rather than an unrecorded assumption.
2. Voltage class and ratio
Match the upstream supply, downstream system, insulation coordination, and local utility requirements. In the context of industrial parks, commercial developments, utilities, municipal infrastructure, and renewable projects, write this decision into the compact substation transformer data sheet and ask the supplier to mark any deviation. The review output should be a value, drawing reference, calculation input, or explicit technical clarification rather than an unrecorded assumption.
3. Capacity and load profile
Use connected load, demand, motor starting, harmonics, redundancy, and future expansion rather than nameplate totals alone. In the context of industrial parks, commercial developments, utilities, municipal infrastructure, and renewable projects, write this decision into the compact substation transformer data sheet and ask the supplier to mark any deviation. The review output should be a value, drawing reference, calculation input, or explicit technical clarification rather than an unrecorded assumption.
4. Cooling and temperature rise
Check heat rejection, ventilation, ambient temperature, loading pattern, and the supplier's declared cooling method. In the context of industrial parks, commercial developments, utilities, municipal infrastructure, and renewable projects, write this decision into the compact substation transformer data sheet and ask the supplier to mark any deviation. The review output should be a value, drawing reference, calculation input, or explicit technical clarification rather than an unrecorded assumption.
5. Protection and coordination
Confirm breaker or fuse duty, relay functions, CT/VT inputs, selectivity, earthing, and upstream/downstream coordination. In the context of industrial parks, commercial developments, utilities, municipal infrastructure, and renewable projects, write this decision into the compact substation transformer data sheet and ask the supplier to mark any deviation. The review output should be a value, drawing reference, calculation input, or explicit technical clarification rather than an unrecorded assumption.
6. Panel or package layout
Align feeder sequence, busbar arrangement, metering, cable rooms, ventilation, transport sections, and future spare ways. In the context of industrial parks, commercial developments, utilities, municipal infrastructure, and renewable projects, write this decision into the compact substation transformer data sheet and ask the supplier to mark any deviation. The review output should be a value, drawing reference, calculation input, or explicit technical clarification rather than an unrecorded assumption.
Applicable Evidence and Its Limits
The Jinxing website references GB/T 17467, IEC 62271 reference support for the relevant product families. These are standards families or project references to discuss. They are not a statement that every rating, arrangement, component, or optional test is automatically covered by the same document.
Public evidence available for early review includes:
For this package selection, request a document register that ties each report, certificate, drawing, and routine test to the quoted model or project. Sample evidence supports early qualification; final acceptance records must match the approved configuration and contractual inspection plan.
RFQ Package for compact substation transformer
Use this product-specific structure instead of sending only a keyword, catalogue request, or target price.
| RFQ section | Information to provide |
|---|---|
| Network interface | MV source, voltage, fault level, feeder arrangement, protection, and metering |
| Transformer and LV | Capacity, voltage ratio, losses, LV bus rating, outgoing feeder schedule, and compensation |
| Package layout | Compartment arrangement, dimensions, cable entry, ventilation, enclosure, and site access |
| Project boundary | Auxiliary supply, drawings, tests, site work exclusions, quantity, destination, and delivery target |
Add the project name, inquiry stage, destination country, quantity, local utility or owner rules, trade terms, and delivery target. If information is not yet available, mark it as "to be confirmed" so the quotation can separate assumptions from confirmed requirements.
Related Guide Cluster
Continue with the closest guides in this product cluster:
- Compact Substation vs Conventional Substation
- 11kV Compact Substation RFQ Checklist
- 35kV Compact Substation Selection Guide
Send the Project to Jinxing
Use the Jinxing inquiry form to send the single-line diagram and completed RFQ fields. Ask for the closest Jinxing product match, a list of missing technical inputs, applicable document references, and a quotation that states inclusions and exclusions.
Editorial Scope
Research and drafting were assisted by keyword and generative tools. Product names, routes, public voltage classes, application descriptions, and evidence links were checked against the current Jinxing website data used by this publication workflow. Final engineering, compliance, price, and delivery details require project-specific written confirmation.