Three Phase Distribution Transformer Manufacturers – Complete Range
Subian Electric manufactures three phase distribution transformers from 30 kVA to 63000 kVA at our 50,000-square-metre factory in Xuzhou, Jiangsu, China. Our 350+ employees have supplied utilities and industry in 50+ countries since 2019.
As a factory-direct manufacturer and supplier, we provide three-phase distribution units with factory pricing, custom configurations and complete test documentation.
Send your voltage, capacity and standard. Our export team will respond with a quotation and technical proposal.
Since 2019 · 50,000m² · 350+ Staff
Three Phase Distribution Transformers We Manufacture
Three phase distribution transformers from 30 kVA to 63000 kVA – oil-immersed, dry-type and amorphous core – for grid, industrial and commercial duty.
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Transformador de tipo seco de 10kV - serie SCBH Aleación Amorfosa
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Transformador de tipo seco de 20-35KV
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Transformador de tipo seco de resina epóxica serie SCB de 20-35KV
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Transformador de distribución sumergido en aceite de 20KV
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Transformador de Potencia Sumergido en Aceite de 35KV
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Transformador de distribución de potencia sumergido en aceite de 6-10KV
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Transformador de Corriente –10KV Interior Alta Tensión
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Transformador de corriente–Transformador de corriente enrollado LMZK 300/5a
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Transformador de corriente–LSY-10 transformador CT integrado
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transformador de corriente–LXK secuencia cero de alta tensión
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transformador de distribución de tipo seco - serie SCB de resina epóxica de 6-10 KV
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Transformadores eléctricos–JDZ – 10 Voltaje de potencia
What Is a Three Phase Distribution Transformer?
A three phase distribution transformer steps a three-phase distribution voltage down to utilisation level, feeding balanced power to networks, industry and commercial buildings.
Three-phase units are the workhorse of power distribution – reliable, efficient and available in a wide range of voltage and capacity combinations.
- 30 kVA – 63000 kVA – complete three-phase capacity range.
- Oil, dry & amorphous – three technologies from one factory.
- Standard vector groups – Yyn0 / Dyn11 / YNd11.
- 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 Types of Three Phase Distribution Transformers
We manufacture three three-phase types:
Sumergido en aceite
Standard outdoor units for grid and industry.
Tipo seco
SCB cast resin units for indoor duty.
Amorphous core
SCBH units for ultra-low no-load loss.
Three Phase Distribution Transformer Specifications
| Parámetro | Specification |
|---|---|
| Voltaje nominal | 6 kV – 132 kV class |
| Capacidad nominal | 30 kVA – 63000 kVA |
| Frecuencia | 50/60 Hz |
| Refrigeración | ONAN / ONAF |
| Grupo vectorial | Yyn0 / Dyn11 / YNd11 |
| Estándar | IEC 60076 / GB 1094 |
Three Phase Transformer Manufacturing at Our 50,000 m² Factory
From winding to vacuum drying, oil filling, assembly and testing – every three-phase unit 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 Three Phase Transformer Supply
Distributors and utilities can brand or resell three-phase units 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
Three Phase vs Single Phase Distribution
Three-phase units supply balanced power to networks and industry at lower cost per kVA; single-phase units serve rural and single-phase networks.
We manufacture both – the choice follows your network and load.
Choosing a Three Phase Distribution Transformer Manufacturer
Verify type test evidence, loss performance and reference deliveries – the factors that determine distribution transformer value.
Subian Electric offers a 50,000m² factory, 350+ employees, ISO9001, CE and UL certification and export to 50+ countries.
Request a quotation with your voltage and capacity – we confirm the design before production.
Certifications & Quality Assurance
Our three-phase transformers are produced under ISO9001, ISO14001 and ISO45001 management systems, with CE and UL certification and type test reports.
Product Certifications
Three Phase Distribution Transformer FAQ
Common questions about three phase distribution transformers and factory sourcing.
¿Qué es un transformador de distribución trifásico?
¿Qué capacidades están disponibles?
What technologies do you offer?
What vector groups are available?
What is a vector group?
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.