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COMPANY PROFILE

20kV Dry Type Distribution Transformer Manufacturers – SCB Epoxy Resin Range

Subian Electric manufactures 20kV and 35kV dry type distribution transformers – SCB series epoxy resin cast units – at our 50,000-square-metre factory in Xuzhou, Jiangsu, China. Our 350+ employees have supplied power equipment to 50+ countries since 2019.
As a factory-direct manufacturer and supplier, we offer 20 kV dry-type transformers with factory pricing, custom configurations and complete test documentation for utility, commercial and industrial projects.
Send your capacity, vector group and application. Our export team will confirm the configuration, price and lead time.

Subian Electric ISO9001 CE and UL product certification marks
20kV dry type distribution transformer assembly at Subian
Factory-Direct Manufacturer
Since 2019 · 50,000m² · 350+ Staff
50,000m²Производственная база
20-35kVКласс напряжения
350+Сотрудники
50+Countries Served
OEM/ODMSupport
WholesaleSupply

20kV Dry Type Distribution Transformers We Manufacture

SCB series epoxy resin cast transformers from 20 kV to 35 kV class, 30 kVA to 6300 kVA, with F/H class insulation and full factory testing.

What Is a 20kV Dry Type Distribution Transformer?

A 20kV dry type distribution transformer steps 20 kV primary distribution voltage down to utilisation voltage using cast-resin or open-wound dry-type construction. It brings the fire safety and low maintenance of dry-type technology to medium voltage distribution.

20 kV networks are standard in many European and Asian distribution systems, feeding commercial centres, industrial zones and public infrastructure where oil-filled units are not permitted or desirable.

  • 20-35 kV class – SCB cast-resin units for medium voltage distribution.
  • Fire-safe construction – no oil – safe for indoor and urban installations.
  • Low maintenance – no oil sampling or containment; minimal routine care.
  • 50,000m² factory – in-house winding, casting, curing and testing.
  • 350+ employees – engineering and export teams supporting every order.
  • OEM / ODM & wholesale – private labelling, packaging and volume pricing.

Main Types of Medium Voltage Dry Type Transformers

We manufacture two construction types at 20 kV:

SCB epoxy resin cast

Vacuum-cast windings for indoor medium voltage substations.

Open-wound / ventilated

Air-insulated construction for lower cost applications with adequate ventilation.

20kV Dry Type Transformer Specifications

Параметр Спецификация
Номинальное напряжение 20 kV / 35 kV class
Номинальная мощность 30 kVA – 6300 kVA
Изоляция F / H class
Частота 50/60 Гц
Векторная группа Dyn11 / Yyn0
Стандарт IEC 60076-11 / GB/T 10228

Medium Voltage Dry-Type Manufacturing at Our 50,000 m² Factory

Winding, vacuum casting, curing, assembly, inspection and testing are controlled in-house at our Xuzhou facility, with partial discharge tests on every unit.

20kV Dry Type Transformer Factory Price – Request a Quote

Send your specification, voltage level, capacity and quantity. Our export team will respond with factory pricing, lead time and drawings for approval.

OEM/ODM & Wholesale Supply of 20kV Dry Type Transformers

Distributors can brand or resell SCB units with custom nameplates, packaging and full documentation.

OEM ODM manufacturing service

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 with factory pricing

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 with account management

Distributor Support

Channel Partners

Dedicated account management, technical documentation and priority production for distributors and project clients.


Account manager · Sales material · Priority lead times

20kV Dry Type vs Oil Immersed for Medium Voltage Distribution

Oil-immersed units are cheaper per kVA and suit outdoor substations, but need oil containment and fire protection. Dry-type units cost more upfront but eliminate fire risk, reduce building requirements and suit indoor, urban and high-value installations.

The choice comes down to site and application – our engineers confirm the right technology on drawings before production.

Comparison and selection guide
Manufacturers and suppliers in China

Choosing a 20kV Dry Type Distribution Transformer Manufacturer

At medium voltage, partial discharge performance and thermal design separate good manufacturers from the rest. Verify type test reports, process control and reference deliveries.

Subian Electric brings a 50,000m² factory, 350+ employees, ISO9001, CE and UL certification and export to 50+ countries with in-house vacuum casting.

Send your voltage, capacity and application – we confirm the design and price before production.

Certifications & Quality Assurance

Our 20kV dry-type transformers are produced under ISO9001, ISO14001 and ISO45001 management systems, with CE and UL certification and type test reports.

Product Certifications

FAQs

20kV Dry Type Transformer FAQ: Selection & Sourcing

Answers to the questions buyers ask most about medium voltage dry type transformers.

Почему стоит выбрать сухой трансформатор на 20 кВ?
Dry-type construction removes fire and oil-containment requirements, suits indoor and urban sites, and reduces maintenance – increasingly preferred for commercial and public infrastructure.
What is the difference between cast resin and open wound dry-type?
Cast resin (SCB) seals windings in epoxy for moisture and pollution protection; open-wound units are air-insulated and cheaper but need clean, ventilated environments.
Can you build 35 kV dry type transformers?
Yes – our SCB series covers 20 kV and 35 kV classes, with type test reports for each voltage level.
What tests are performed on dry type transformers?
Routine tests include ratio, vector group, no-load and load loss, insulation resistance and induced voltage; type tests include partial discharge and temperature-rise.
Do you provide type test reports?
Yes – type test reports are available for project approval and market certification.
What are your delivery terms?
FOB / CIF / DDP terms are available, with lead times confirmed against your project schedule.

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.

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Your inquiry is sent directly to our export sales team.