Medium Voltage Dry Type Transformer Manufacturers – Cast Resin Specialists
Subian Electric manufactures medium voltage dry type transformers – SCB epoxy resin cast units from 6 kV to 35 kV – at its 50,000-square-metre factory in Xuzhou, Jiangsu, China. Subian’s 350+ employees have served 50+ countries since 2019.
As a factory-direct manufacturer and supplier, Subian supplies MV dry-type transformers for indoor substations and industrial distribution with factory pricing and complete test documentation.
Send your voltage class, capacity and application. Subian’s export team will respond with a quotation and technical proposal.
Medium Voltage Dry Type Transformers Manufactured by Subian
SCB series cast resin transformers from 6 kV to 35 kV class, 30 kVA to 6300 kVA, with F/H insulation and partial discharge tested units for indoor MV distribution.
What Is a Medium Voltage Dry Type Transformer?
A medium voltage dry type transformer operates between 6 kV and 35 kV using cast-resin or air insulation. It is the fire-safe, low-maintenance choice for MV distribution inside buildings, substations and industrial facilities.
MV dry-type units power commercial complexes, hospitals, airports, metros, data centres and industrial plants where oil-filled transformers are restricted and reliability is critical.
What Buyers Check Before Ordering
- 6-35 kV class – MV dry-type units for indoor distribution.
- Cast resin insulation – vacuum-cast epoxy for moisture and pollution resistance.
- Fire-safe & compact – suits urban and occupied buildings.
- 50,000m² factory – in-house winding, casting, curing and testing.
- 350+ employees – engineering, production and export teams.
- OEM / ODM & wholesale – custom branding, packaging and volume supply.
Main Types of Medium Voltage Dry Type Transformers
Subian manufactures two MV dry-type types:
SCB cast resin
Cast resin
Standard MV dry-type for indoor substations and buildings.
SCB series / epoxy cast / indoor
SCBH amorphous
Amorphous core
Amorphous core MV dry-type for ultra-low no-load losses.
Lower no-load loss / SH15-M
Medium Voltage Dry Type Transformer Specifications
| Parameter | Specification |
|---|---|
| Rated voltage | 6 kV – 35 kV class |
| Rated capacity | 30 kVA – 6300 kVA |
| Insulation | F / H class |
| Frequency | 50/60 Hz |
| Vector group | Dyn11 / Yyn0 |
| Standard | IEC 60076-11 / GB/T 10228 |
How to Compare Medium Voltage Dry Type Transformer Suppliers
Quotations for this equipment often look identical on the first page. The difference sits in what is attached behind the number, and in the three or four lines that decide the installed cost rather than the purchase price.
| What to compare | What a thin quotation leaves out | What to ask for |
|---|---|---|
| Price basis | One figure, no Incoterm | Ex-works, FOB or CIF, and which port |
| Payment terms | A deposit with no security | T/T split, LC at sight or LC 90 days, and the bank |
| Lead time | Weeks counted from the order | Days from drawing approval, with the approval date named |
| Scope of accessories | Core and coils only | Bushings, tap changer, surge arresters, terminal box and oil charge |
| Test witness | A report sent after shipment | FAT date agreed at approval, with the witness named |
| Warranty | A period with no remedy defined | Duration, what is covered, and who pays freight on a claim |
Buyers who compare on price alone usually discover the gap at commissioning. The six lines above are the ones that decide whether the unit or the panel can be energised without site work. OEM and ODM supply is available where the nameplate, manual and packing have to carry a different brand.
Where These Units Ship
Equipment of this class is usually bought in small batches, tested at the factory and shipped as one consignment. Three references show how buyers in different markets specify it.
| Project | Location | Application | Supply model |
|---|---|---|---|
| Pad-mounted units for a solar station | Ecuador | Photovoltaic generation | Direct export |
| Utility distribution transformer supply | Venezuela | Utility distribution | Direct export |
| 33kV main transformer ODM project | Zimbabwe | Mining | ODM supply |
Scope, packing and delivery notes for each project are in the project case library. Send the single-line diagram and the destination port and the reply follows the same structure.
MV Dry Type Transformer Manufacturing at Subian’s 50,000 m² Factory
Winding, vacuum casting, curing, assembly and testing are controlled in-house, with partial discharge tests on every MV unit before delivery.
Production Workshop
Controlled winding, core processing and vacuum drying with quality checkpoints between every stage, so quality is built in from the start.
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Quality & Testing Center
Routine inspection on every unit before delivery, with type test reports supporting project approval and market certification.
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Materials & Components
Core materials, windings and components are checked against the approved bill of materials on every production run.
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OEM / ODM / Agency Supply
Custom branding, packaging and configurations for global partners – from nameplate to complete product design – supported by a dedicated export team.
Learn More →OEM/ODM & Wholesale MV Dry Type Transformer Supply
Distributors and project buyers can brand or resell SCB units with custom nameplates, packaging and documentation.
OEM / ODM
Factory-DirectCustom branding, packaging and product variants built on Subian’s standard platforms – from a nameplate to full product design.
Custom nameplate · Custom packaging · Full test docs
Wholesale Supply
Volume PricingFactory 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 PartnersDedicated account management, technical documentation and priority production for distributors and project clients.
Account manager · Sales material · Priority lead times
Medium Voltage Dry Type vs Oil Immersed Transformers
Oil-immersed MV units are cheaper per kVA but need fire protection, oil containment and maintenance. MV dry-type units cost more upfront but eliminate those requirements, reduce building work and suit urban sites.
The technology choice follows site and application – Subian’s engineers confirm the right option on drawings before production.
Choosing a Medium Voltage Dry Type Transformer Manufacturer
At MV, verify partial discharge performance, thermal design and type test evidence. Factory audit access and reference projects at the same voltage class complete the picture.
Subian Electric offers a 50,000m² factory, 350+ employees, ISO9001, CE and UL certification and export to 50+ countries with in-house vacuum casting.
Request a quotation with your voltage class and capacity – Subian confirms the design and price before production.
Certifications & Quality Assurance
Subian’s MV dry-type transformers are produced under ISO9001, ISO14001 and ISO45001 management systems, with CE and UL certification and type test reports.
Product Certifications
10 kV Dry-Type Transformer Certificate
35 kV Transformer CB Certificate
35 kV Transformer CE Verification
Transformer CE Certificate
Dry-Type Transformer Test Verification
ISO 14001 Environmental Management
ISO 45001 Health & Safety
ISO 9001 Quality Management
110 kV Transformer Type Test Report
UL Certificate of Compliance
Medium Voltage Dry Type Transformer FAQ
Common questions about medium voltage dry type transformers and factory sourcing.
What is a medium voltage dry type transformer?
What voltages do you manufacture?
Why is cast resin preferred at medium voltage?
What tests are done before delivery?
Do you provide type test reports?
What are your delivery terms?
What information is needed to quote Medium Voltage Dry Type Transformer?
Do you build Medium Voltage Dry Type Transformer to a customer’s nameplate?
Contact Subian
Need the Right Specification?
Tell Subian your target market, product type, quantity and technical requirements. Subian’s team will help you identify a suitable configuration for your project.