Published 2026-05-09 | Updated 2026-05-09
Short Answer
A compact substation should be specified by transformer capacity, voltage class, medium-voltage unit, low-voltage cabinet, enclosure structure, protection devices, installation environment, and document requirements.
Define the Substation Configuration First
A compact substation is not a single product only. It is an integrated power distribution package that normally combines a transformer, medium-voltage switchgear or RMU, low-voltage switchgear, busbar, protection, metering, enclosure, ventilation, and cable entry design.
Before asking for price, buyers should define the incoming voltage, outgoing voltage, transformer capacity, number of feeders, metering requirement, protection requirement, and whether the site needs an American-style, European-style, or YB prefabricated solution.
- Transformer capacity and voltage ratio
- MV incoming and outgoing scheme
- LV feeder quantity and rated current
- Outdoor enclosure and corrosion protection
- Single-line diagram and local standard
Choose the Right Substation Type
American compact substations are often used where a compact transformer-centered layout is preferred. European compact substations usually provide clearer MV, transformer, and LV compartment separation. YB prefabricated substations are widely used in distribution networks, industrial parks, commercial areas, and infrastructure projects.
The right type depends on the site layout, maintenance access, safety expectations, utility approval, cable direction, and whether the buyer wants a more compact footprint or more compartment separation.
Avoid Under-Specified Requests
A request like 'send price for 630kVA substation' is not enough for a reliable quotation. Two substations with the same transformer capacity can have very different cost and lead time if the switchgear, LV cabinet, enclosure, protection devices, and testing requirements differ.
For faster quotation, send the single-line diagram, capacity, voltage ratio, feeder count, IP rating, project country, preferred standard, and required documents. If the design is not final, Jinxing Electric can help structure the technical confirmation list.
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FAQ
1. What information is needed for a compact substation quotation?
Send transformer capacity, voltage ratio, MV and LV single-line diagram, feeder quantity, enclosure requirement, installation environment, destination country, and required certificates.
2. Can Jinxing Electric supply the transformer and switchgear together?
Yes. Compact substations can be configured with transformer, MV unit, LV cabinet, enclosure, accessories, drawings, and supporting documents.