Electrical Substation Components Manufacturers – Complete Component Supply
Subian Electric manufactures the components that make up electrical substations – transformers, switchgear, ring main units, circuit breakers and LV panels – from our 50,000-square-metre factory in Xuzhou, Jiangsu, China. Our 350+ employees have served utilities in 50+ countries since 2019.
As a factory-direct manufacturer and supplier, we supply individual components or complete sets with factory pricing and full documentation.
Tell us your component list or single-line diagram. Our export team will respond with a quotation and technical data.
Since 2019 · 50,000m² · 350+ Staff
Electrical Substation Components We Manufacture
Power and distribution transformers, HV switchgear, ring main units, vacuum circuit breakers and LV panels – the components of every distribution substation.
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Transformateur à sec 10kV - série SCBH en alliage amorphe
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Transformateur à sec 20-35KV
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Transformateur à sec en résine époxy série SCB 20-35KV
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Transformateur de distribution immergé dans l'huile 20KV
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Transformateur de puissance immergé dans l'huile 35 kV
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Transformateur de distribution électrique immergé dans l'huile 6-10KV
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Transformateur de courant –10KV Haute tension intérieure
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Transformateur de courant–Transformateur de courant enroulé LMZK 300/5a
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Transformateur de courant - Transformateur intégré LSY-10
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transformateur de courant–LXK haute tension zéro séquence
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Transformateur de distribution à sec - série SCB en résine époxy 6-10 KV
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Transformateurs électriques–JDZ – 10 Tension de puissance
What Components Make Up an Electrical Substation?
An electrical substation is built from a defined set of components: transformers, HV switchgear, instrument transformers, circuit breakers, protection and LV panels. Sourcing them from one manufacturer keeps ratings, interfaces and documentation consistent.
Whether you build conventional or prefabricated substations, component quality and interface compatibility decide reliability. We manufacture the main components in-house and test them together.
- In-house components – transformers, switchgear, RMU and breakers from one factory.
- Interface consistency – ratings and connections engineered to work together.
- 6-132 kV class – components for distribution and sub-transmission.
- 50,000m² factory – in-house winding, assembly and testing.
- 350+ employees – engineering, quality and export teams.
- OEM / ODM & wholesale – custom branding, packaging and volume supply.
Main Types of Substation Components
We manufacture four component groups:
Transformers
Oil-immersed and dry-type units for substation duty.
Switchgear & RMU
KYN28A-12 switchgear and XGN15-12 / HXGN15-12 ring main units.
Circuit breakers
VS1 indoor and ZW32 outdoor vacuum circuit breakers.
Substation Components Specifications
| Paramètre | Specification |
|---|---|
| Transformers | 30 kVA – 63000 kVA, 6-132 kV |
| Switchgear | 12 kV, IEC 62271 / GB 3906 |
| RMU | XGN15-12 / HXGN15-12 |
| Breakers | VS1 / ZW32 / ZW20 |
| LV panels | GGD / GCS / MNS |
| Norme | IEC 60076 / IEC 62271 |
Substation Component Manufacturing: Full Factory Control
From transformer winding to switchgear assembly and breaker testing – every component is built and tested at our Xuzhou facility.
Production Workshop
Controlled winding, core processing and vacuum drying with quality checkpoints between every stage, so quality is built in from the start.
Quality & Testing Center
Routine inspection on every unit before delivery, with type test reports supporting project approval and market certification.
Materials & Components
Core materials, windings and components are checked against the approved bill of materials on every production run.
OEM / ODM / Agency Supply
Custom branding, packaging and configurations for global partners – from nameplate to complete product design – supported by a dedicated export team.
OEM/ODM & Wholesale Substation Component Supply
Utilities and panel builders can brand or resell components with custom nameplates, packaging and documentation.
OEM / ODM
Factory-Direct
Custom branding, packaging and product variants built on our standard platforms – from a nameplate to full product design.
Custom nameplate · Custom packaging · Full test docs
Wholesale Supply
Volume Pricing
Factory pricing with flexible container quantities, mixed models per container and reliable global shipping for volume buyers and importers.
Container MOQ · Mixed models · Global shipping
Distributor Support
Channel Partners
Dedicated account management, technical documentation and priority production for distributors and project clients.
Account manager · Sales material · Priority lead times
Component Sets vs Individual Sourcing
Buying substation components individually from separate suppliers risks rating mismatches and divided responsibility. A coordinated component set from one factory is tested for compatibility.
We supply both loose components and coordinated sets – the choice depends on your procurement model.
Choosing an Electrical Substation Components Manufacturer
Verify type test evidence for each component family and the manufacturer’s ability to coordinate ratings across the set.
Subian Electric offers a 50,000m² factory, 350+ employees, ISO9001, CE and UL certification and export to 50+ countries.
Send your component list – we will confirm ratings, documentation and price before production.
Certifications & Quality Assurance
Our substation components are produced under ISO9001, ISO14001 and ISO45001 management systems, with CE and UL certification and type test reports.
Product Certifications
Electrical Substation Components FAQ
Common questions about substation components and factory sourcing.
Quels composants fabriquez-vous ?
Can you coordinate ratings across components?
Do you provide type test reports?
What is the minimum order quantity?
What is the difference between a power transformer and an instrument transformer?
What are your delivery terms?
Contact Subian
Need the Right Specification?
Tell us your target market, product type, quantity and technical requirements. Our team will help you identify a suitable configuration for your project.