Distribution Transformer Oil Type Manufacturers – Oil-Immersed Factory Supply
Subian Electric manufactures oil immersed distribution transformers from 6 kV to 132 kV class at our 50,000-square-metre factory in Xuzhou, Jiangsu, China. Our 350+ employees have supplied power grids, utilities and industry in 50+ countries since 2019.
As a factory-direct manufacturer and supplier, we provide oil-type distribution transformers 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.
2019年以降 · 50,000m² · 350人以上のスタッフ
Oil Immersed Distribution Transformers We Manufacture
Oil-type distribution transformers from 6 kV to 132 kV class, 30 kVA to 63000 kVA – pole-mounted, pad-mounted and substation designs with ONAN/ONAF cooling.
What Is an Oil Type Distribution Transformer?
An oil type distribution transformer uses mineral oil for insulation and cooling, making it the most economical and widely used transformer technology for outdoor distribution. The oil dissipates heat and provides dielectric strength, allowing high capacity in a compact tank.
Utilities and industrial sites around the world rely on oil-immersed distribution transformers for pole, pad and substation installations. They deliver proven reliability, low first cost and easy maintainability over decades of service.
- 6-132 kV class – oil-immersed units for pole, pad and substation duty.
- Proven technology – the world standard for outdoor distribution.
- 50,000m²工場 – in-house winding, vacuum drying and testing.
- 350人以上の従業員 – engineering, production and export teams.
- Type test evidence – power frequency and impulse reports to 110 kV class.
- OEM / ODM & 卸売 – カスタムブランディング、パッケージング、ボリューム供給。.
Main Types of Oil Immersed Distribution Transformers
We manufacture three oil-type configurations:
Pole-mounted
Compact single-phase and three-phase units for rural and overhead networks.
Pad-mounted
Enclosed ground-level units for urban and commercial distribution.
Substation type
Larger units for distribution substations up to 132 kV class.
Oil Immersed 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 |
| 周波数 | 50/60 Hz |
| 冷却 | ONAN / ONAF |
| ベクトルグループ | Yyn0 / Dyn11 |
| 標準 | IEC 60076 / GB 1094 |
Oil Immersed Transformer Manufacturing: Full Factory Control
From material preparation to winding, vacuum drying, oil filling, assembly and testing – every unit is built and tested at our Xuzhou facility.
OEM/ODM & Wholesale Oil Immersed Transformer Supply
Distributors and utilities can brand or resell oil-type units with custom nameplates, packaging and documentation.
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
Oil Immersed vs Dry Type Distribution Transformers
Oil-immersed units offer the lowest cost per kVA and suit outdoor, high-capacity duty, but need oil containment and periodic oil maintenance. Dry-type units remove those needs at higher first cost.
For utility and outdoor distribution, oil type remains the standard – our engineers confirm the right technology for your project.
Oil Type Distribution Transformer Manufacturers & Suppliers: How to Choose
Compare manufacturers on type test evidence, vacuum drying capability and reference deliveries to utilities. These factors determine transformer life and reliability.
Subian Electricは、50,000m²の工場、350人以上の従業員、ISO9001、CEおよびUL認証を提供し、50か国以上に輸出しています。.
Request a quotation with your voltage, capacity and standard – we confirm the design on drawings before production.
認証 & 品質保証
Our oil-immersed transformers are produced under ISO9001, ISO14001 and ISO45001 management systems, with CE and UL certification and type test reports to 110 kV class.
製品認証
Oil Type Distribution Transformer FAQ
Common questions about oil immersed distribution transformers and factory sourcing.
配電トランスはなぜ油で満たされているのですか？
What is the difference between ONAN and ONAF cooling?
What oil is used?
What maintenance does an oil transformer need?
Do you provide type test reports?
最小注文数量とは何ですか？
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.