Distribution Transformer Voltage Manufacturers – Every Voltage Class
Subian Electric manufactures distribution transformers across the voltage classes from 6 kV to 132 kV at 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 help buyers select the right voltage class, with factory pricing and complete test documentation for every class.
Send your voltage class and capacity. Our export team will respond with a quotation and technical proposal.
Since 2019 · 50,000m² · 350+ Staff
Distribution Transformers by Voltage Class
Distribution transformers from 6 kV to 132 kV class – 6-10 kV, 20 kV, 35 kV, 66 kV and 110-132 kV units – tested per IEC 60076 for each class.
-
10kV Dry-Type Transformer-SCBH series Amorphous Alloy
-
20-35KV Dry-Type Transformer
-
20-35KV SCB Series Epoxy Resin Dry-Type Transformer
-
20KV Oil-immersed Distribution Transformer
-
35KV Oil-immersed Power Transformer
-
6-10KV Oil-Immersed Power Distribution Transformer
-
Current Transformer –10KV Indoor High Voltage
-
Current Transformer–LMZK Wound Current Transformer300/5a
-
Current Transformer–LSY-10 transformer Integrated CT
-
current transformer–LXK high voltage zero sequence
-
dry type distribution transformer-6-10 KV SCB series epoxy resin cast
-
Electrical Transformers–JDZ – 10 Power Voltage
What Voltage Classes Do Distribution Transformers Cover?
Distribution transformers are defined by their voltage class – from 6 kV and 10 kV distribution up to 66 kV and 110-132 kV sub-transmission. Each class has its own insulation, test and standard requirements.
Choosing the right voltage class is the first step of any transformer specification – it determines insulation, testing and cost. We manufacture every class in the distribution range.
- All distribution classes – 6 kV, 10 kV, 20 kV, 35 kV, 66 kV, 110-132 kV.
- Class-matched testing – type tests per voltage class.
- Selection support – engineering help choosing the right class.
- 50,000m² factory – in-house winding, vacuum drying and testing.
- 350+ employees – engineering, quality and export teams.
- OEM / ODM & wholesale – custom branding, packaging and volume supply.
Main Voltage Classes of Distribution Transformers
We manufacture transformers in six main voltage classes:
6-10 kV class
Standard distribution for urban and rural networks.
20-35 kV class
Medium voltage distribution for regional supply.
66-132 kV class
High voltage for sub-transmission and large supply.
Distribution Transformer Voltage Specifications
| Parameter | Specification |
|---|---|
| Voltage classes | 6 / 10 / 20 / 35 / 66 / 110-132 kV |
| Capacity | 30 kVA – 63000 kVA |
| Frequency | 50/60 Hz |
| Cooling | ONAN / ONAF |
| Vector group | Yyn0 / Dyn11 |
| Standard | IEC 60076 / GB 1094 |
Voltage Class Manufacturing at Our 50,000 m² Factory
From insulation design to winding, vacuum drying and testing – every voltage class is built and tested at our Xuzhou facility with class-specific test procedures.
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.
Distribution Transformer Factory Price by Voltage – 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 Transformer Supply
Distributors can brand or resell units across voltage classes with custom nameplates 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
Choosing the Right Voltage Class
The voltage class follows your network level – 6-10 kV for local distribution, 20-35 kV for regional supply, 66-132 kV for sub-transmission. Each class has different insulation and test requirements.
Our engineers help you confirm the right class and standard before quoting.
Choosing a Distribution Transformer Manufacturer by Voltage
Verify type test evidence for the specific voltage class you need – insulation and test requirements differ significantly between classes.
Subian Electric offers a 50,000m² factory, 350+ employees, ISO9001, CE and UL certification and export to 50+ countries across all distribution classes.
Send your voltage class and capacity – we confirm the design and price before production.
Certifications & Quality Assurance
Our transformers are produced under ISO9001, ISO14001 and ISO45001 management systems, with CE and UL certification and type test reports per voltage class.
Product Certifications
Distribution Transformer Voltage FAQ
Common questions about distribution transformer voltage classes and factory sourcing.
What voltage classes do you manufacture?
How do I choose the right voltage class?
Do the test requirements differ by class?
Can you build custom voltage combinations?
What is the difference between low, medium and high voltage transformers?
What is the minimum order quantity?
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.