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High Voltage Dry Type Transformer Manufacturers – SCB 6-35kV Supply

Subian Electric manufactures high voltage dry type transformers – SCB epoxy resin cast units from 6 kV to 35 kV class – at our 50,000-square-metre factory in Xuzhou, Jiangsu, China. Our 350+ employees have served 50+ countries since 2019.
As a factory-direct manufacturer and supplier, we supply HV dry-type transformers for indoor substations, commercial buildings and industrial plants with factory pricing and complete documentation.
Send your voltage class, capacity and application. Our export team will respond with a quotation and technical proposal.

Subian Electric ISO9001 CE and UL product certification marks
High voltage dry type transformer production at Subian
Factory-Direct Manufacturer
Since 2019 · 50,000m² · 350+ Staff
50,000m²Manufacturing Base
6-35kVHV Dry Class
350+Employees
50+Countries Served
OEM/ODMSupport
WholesaleSupply

High Voltage Dry Type Transformers We Manufacture

SCB series epoxy resin cast transformers from 6 kV to 35 kV class, 30 kVA to 6300 kVA, with F/H insulation and partial discharge tested units.

What Is a High Voltage Dry Type Transformer?

A high voltage dry type transformer operates at medium distribution voltages – typically 6 kV to 35 kV – using cast-resin or air insulation instead of oil. It brings fire safety and low maintenance to HV distribution indoors.

These transformers serve HV substations, commercial complexes, hospitals, airports, metros and industrial plants where oil-filled units are restricted by fire or environmental regulations.

  • 6-35 kV class – high voltage dry-type units for indoor distribution.
  • Cast resin insulation – vacuum-cast epoxy for moisture and pollution protection.
  • Fire-safe operation – no oil, suitable for occupied and safety-critical 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 pricing.

Main Types of High Voltage Dry Type Transformers

We build two HV dry-type types:

SCB cast resin

Epoxy-encapsulated windings for 6-35 kV indoor substations.

SCBH amorphous

Amorphous core HV dry-type for ultra-low no-load losses.

High 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

HV Dry Type Transformer Manufacturing at Our 50,000 m² Factory

Winding, vacuum casting, curing, assembly and testing are controlled in-house, with partial discharge tests on every HV unit before delivery.

High Voltage 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 HV Dry Type Transformer Supply

Distributors and project buyers can brand or resell SCB units with custom nameplates, packaging and 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

High Voltage Dry Type vs Oil Immersed Transformers

Oil-immersed HV transformers are lower in first cost but require fire protection, oil containment and periodic oil maintenance. HV dry-type units are higher in first cost but eliminate those requirements for the life of the asset.

For indoor, urban and safety-critical HV installations, the dry-type choice reduces risk and long-term cost.

Comparison and selection guide
Manufacturers and suppliers in China

Choosing a High Voltage Dry Type Transformer Manufacturer

HV dry-type transformers live or die on partial discharge performance and thermal design. Verify type test reports, factory audit access and reference projects at the same voltage class.

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 – we confirm the design and price before production.

Certifications & Quality Assurance

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

Product Certifications

FAQs

High Voltage Dry Type Transformer FAQ

Common questions about high voltage dry type transformers and factory sourcing.

What voltage range do HV dry type transformers cover?
Our SCB series covers 6 kV to 35 kV class, with type test reports for each voltage level.
Why choose dry-type at high voltage?
Fire safety, no oil containment, low maintenance and reduced building requirements – decisive factors in urban and indoor HV installations.
What is partial discharge testing?
It measures internal discharge activity in the insulation under voltage stress. Low partial discharge levels indicate sound cast-resin insulation and long service life.
Can HV dry type transformers be used outdoors?
Yes, with a weatherproof enclosure – though they are most commonly installed indoors where their advantages matter most.
Do you provide type test reports?
Yes – including partial discharge and temperature-rise reports for project approval.
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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