Electric Distribution Transformer Manufacturers – Factory-Direct Supplier From China
Jiangsu Subian Power Equipment Co., Ltd. manufactures oil-immersed, dry-type and amorphous core distribution transformers from our 50,000-square-metre factory in Xuzhou, Jiangsu, China. Since 2019, our 350+ employees have supplied transformers, prefabricated substations and switchgear to power grids, renewable energy projects, commercial buildings and industrial facilities in more than 50 countries.
As a factory-direct manufacturer and supplier, we offer distribution transformer factory pricing, custom voltage and capacity configurations from 6 kV to 132 kV, OEM/ODM branding and complete test documentation – type test reports, routine test records and drawings included.
Whether you are a distributor, importer, EPC contractor or utility buyer, send us your specification and target market. Our export team will respond with a quotation, lead time and technical proposal.
Since 2019 · 50,000m² · 350+ Staff
Distribution Transformer Products We Manufacture
Browse our distribution transformer range: oil-immersed units from 6 kV to 132 kV, SCB series epoxy-resin dry-type transformers, SCBH amorphous alloy dry-type transformers and single-phase pole-mounted transformers – all built to IEC 60076 / GB 1094 with routine testing on every unit.
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10kV Trocken-Typ Transformator-SCBH-Serie Amorphes Metall
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20-35KV Trocken-Typ Transformator
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20-35KV SCB-Serie Epoxidharz Trocken-Typ Transformator
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20KV Ölgetauchter Verteiltransformator
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35KV ölgetauchter Leistungstransformator
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6-10KV Ölgetauchter Leistungs-Verteiltransformator
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Stromwandler –10KV Innenhochspannung
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Stromwandler–LMZK Wound Current Transformer300/5a
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Stromwandler–LSY-10 Transformator Integrierter CT
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stromwandler–LXK Hochspannungs-Nullfolge
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Trocken-Typ Verteiltransformator-6-10 KV SCB-Serie Epoxidharz gegossen
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Elektrische Transformatoren–JDZ – 10 Leistungs-Spannung
What Is a Distribution Transformer? Types & Buyer Guide
A distribution transformer steps voltage down from the transmission or primary distribution level to the voltage used by factories, buildings and communities – typically 6 kV to 132 kV on the primary side and 0.4 kV to 11 kV on the secondary side. It is a 20-30 year asset, so the manufacturer behind it matters as much as the price.
Subian Electric manufactures the transformer types buyers most commonly specify – oil-immersed, dry-type and amorphous alloy – with factory testing on every unit and type test reports up to 110 kV class available for project approval and market certification.
- Voltage range 6-132 kV – oil-immersed distribution transformers including 66 kV, 110 kV and 132 kV classes.
- 50,000m² factory – dedicated lines for winding, vacuum drying, assembly and testing under one roof.
- 350+ employees – engineering, production, quality and export teams supporting every order.
- Type test evidence – power frequency, impulse and temperature-rise reports for project approval.
- ISO9001, CE & UL – certified production with documentation for your target market.
- OEM / ODM & wholesale – private labelling, custom packaging and container volume supply.
Main Types of Distribution Transformers
Three product families cover most distribution projects:
Ölgetaucht
Available from 6 kV to 132 kV including pole-mounted and pad-mounted designs; cooled and insulated by transformer oil, suited to outdoor and high-capacity applications.
Trockenbau
SCB series epoxy-resin cast transformers from 6 kV to 35 kV; fire-safe and low-maintenance, ideal for indoor, commercial and space-limited installations.
Amorphes Legierung
SCBH series ultra-low no-load loss transformers using amorphous cores, popular for energy-saving distribution and utility programs.
Distribution Transformer Specifications
| Parameter | Spezifikation |
|---|---|
| Nennspannung | 6 kV – 132 kV class |
| Nennkapazität | 30 kVA – 63000 kVA |
| Nennfrequenz | 50/60 Hz |
| Kühlmethode | ONAN / ONAF |
| Anschlussgruppe | Yyn0 / Dyn11 / Yzn11 |
| Norm | IEC 60076 / GB 1094 |
Distribution Transformer Manufacturing: Inside Our 50,000 m² Factory
From material preparation to winding, core processing, vacuum drying, assembly, inspection and delivery – every step is controlled at our Xuzhou facility, and buyers are welcome to audit the factory or arrange third-party inspection.
Production Workshop
Controlled winding and core processing followed by vacuum drying and treatment, with in-process quality checks at every stage.
Quality & Testing Center
Routine inspection on every unit before delivery, with type test reports up to 110 kV class 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, ensuring consistent quality across every order.
OEM / ODM / Agency Supply
Custom branding, packaging and product variants for global partners – from nameplate to full product design – supported by a dedicated export team.
OEM, ODM & Wholesale Distribution Transformer Supply for Distributors
Brand the transformers yourself or resell them – we provide the factory backing, private labelling and volume pricing that distributors and importers need.
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
Distribution Transformer Types Compared: Oil-immersed vs Dry-type vs Amorphous
Oil-immersed transformers suit outdoor, high-capacity duties and deliver the lowest first cost for utility and industrial sites; dry-type SCB transformers suit indoor, fire-sensitive buildings where maintenance must be minimal; amorphous alloy SCBH units cut no-load losses dramatically and pay back through lower lifetime energy cost on lightly loaded feeders.
Selection depends on environment, capacity, loss evaluation and maintenance preference. Our engineers confirm the right type and configuration on drawings before production – and we manufacture all three, so the recommendation is based on your project, not our inventory.
Distribution Transformer Manufacturers & Suppliers Worldwide: How to Choose
The global market is served by multinational manufacturers such as Hitachi Energy, Siemens Energy and ABB, regional specialists, and China-based factories. Multinationals bring brand recognition; Chinese manufacturers bring factory pricing, production capacity and the flexibility to engineer around your specification.
When comparing distribution transformer suppliers, verify four things: valid certifications (ISO9001, CE and market-specific marks), type test reports for the voltage class you need, factory capacity and testing capability, and reference deliveries to similar markets. Request the same specification from each shortlisted manufacturer, then compare price, lead time and documentation on an equal basis.
Subian Electric sits in the China group: a 50,000m² factory, 6-132 kV capability, 350+ employees, ISO9001 / ISO14001 / ISO45001, CE and UL certification, and direct export to 50+ countries. We publish our certificates, provide type test reports on request and welcome factory audits.
Certifications & Quality Assurance
Every distribution transformer we ship is produced under ISO9001, ISO14001 and ISO45001 management systems, with CE and UL certification and type test reports up to 110 kV class – giving buyers verifiable evidence of quality and compliance.
Product Certifications
Distribution Transformer FAQ: Types, Selection & Factory Sourcing
Common questions about distribution transformer types, how to choose the right unit, and how to source from a factory – answered by our engineering and export teams.
Was ist ein Verteilungstransformator und wie funktioniert er?
What is the difference between oil-immersed and dry-type transformers?
How do I choose the right distribution transformer capacity?
How can I verify a distribution transformer manufacturer’s quality?
What is the minimum order quantity and typical lead time?
Can you support OEM branding for distributors and importers?
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.