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.
2019年以降 · 50,000m² · 350人以上のスタッフ
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.
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工場 – dedicated lines for winding, vacuum drying, assembly and testing under one roof.
- 350人以上の従業員 – 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 & 卸売 – private labelling, custom packaging and container volume supply.
Main Types of Distribution Transformers
Three product families cover most distribution projects:
Oil-immersed
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.
Dry-type
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.
アモルファス合金
SCBH series ultra-low no-load loss transformers using amorphous cores, popular for energy-saving distribution and utility programs.
Distribution Transformer Specifications
| パラメータ | 仕様 |
|---|---|
| 定格電圧 | 6 kV – 132 kV class |
| 定格容量 | 30 kVA – 63000 kVA |
| 定格周波数 | 50/60 Hz |
| 冷却方法 | ONAN / ONAF |
| 接続グループ | Yyn0 / Dyn11 / Yzn11 |
| 標準 | 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.
生産ワークショップ
Controlled winding and core processing followed by vacuum drying and treatment, with in-process quality checks at every stage.
品質 & 試験センター
Routine inspection on every unit before delivery, with type test reports up to 110 kV class supporting project approval and market certification.
材料 & コンポーネント
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 / エージェンシー供給
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
工場直送
当社の標準プラットフォームに基づいて構築されたカスタムブランディング、パッケージング、製品バリアント – 名札から完全な製品設計まで。.
カスタム名札 · カスタムパッケージ · 完全な試験書類
卸売供給
ボリューム価格
柔軟なコンテナ数量、コンテナごとの混合モデル、ボリュームバイヤーおよび輸入業者向けの信頼できるグローバル配送を伴う工場価格。.
コンテナMOQ · 混合モデル · グローバル配送
ディストリビューターサポート
チャンネルパートナー
ディストリビューターおよびプロジェクトクライアント向けの専任アカウント管理、技術文書、優先生産。.
アカウントマネージャー · 販売資料 · 優先リードタイム
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.
認証 & 品質保証
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.
製品認証
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.
配電トランスとは何ですか、そしてそれはどのように機能しますか？
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.