Potential Transformer Substation Manufacturers – Metering Grade Supply
Subian Electric manufactures potential transformers for substation metering and protection at our 50,000-square-metre factory in Xuzhou, Jiangsu, China. Our 350+ employees have served utilities and panel builders in 50+ countries since 2019.
As a factory-direct manufacturer and supplier, we provide PTs with accurate ratios, stable accuracy and complete test documentation.
Send your voltage class and accuracy requirements. Our export team will respond with a quotation and technical data.
2019年以降 · 50,000m² · 350人以上のスタッフ
Substation Potential Transformers We Manufacture
Potential transformers for substation metering and protection, 10 kV to 35 kV class, cast resin or oil immersed, with routine testing on every unit.
What Is a Potential Transformer and Why Is Accuracy Important?
A potential transformer converts substation voltage to a standard low level for instruments. Accuracy matters because every protection decision and every meter reading starts from the PT signal.
A correctly rated PT with the right accuracy class keeps protection sensitive and billing fair. We confirm ratio, class and burden with your scheme before production.
- Metering & protection – accuracy classes from 0.2 to 3P.
- 10-35 kV class – voltage classes for substation duty.
- Stable accuracy – temperature-stable designs for long-term billing.
- 50,000m²工場 – in-house winding, casting and testing.
- 350人以上の従業員 – エンジニアリング、品質、輸出チーム。.
- 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 Substation Potential Transformers
We manufacture two PT types:
Metering PT
High-accuracy units for energy measurement and billing.
Protection PT
Units for voltage protection and synchronising schemes.
Substation PT Specifications
| パラメータ | 仕様 |
|---|---|
| 定格電圧 | 10 kV / 35 kVクラス |
| 副電圧 | 100 V / 110 V / 120 V |
| 精度クラス | 0.2 / 0.5 / 3P |
| 絶縁 | Cast resin / oil immersed |
| 周波数 | 50/60 Hz |
| 標準 | IEC 61869 |
PT Manufacturing at Our 50,000 m² Factory
From winding to casting, assembly and testing – every PT is built and tested at our Xuzhou facility with accuracy verification.
OEM/ODM & Wholesale PT Supply for Panel Builders
Panel builders and distributors can brand or resell PTs with custom nameplates 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
Accuracy Class Selection: Metering vs Protection PTs
Metering PTs need high accuracy at normal operating voltage (0.2-0.5 class); protection PTs need predictable behaviour under fault conditions (3P class).
We confirm the accuracy class with your scheme before production, so the PT matches its job.
Choosing a Potential Transformer Substation Manufacturer
Verify accuracy test evidence, insulation quality and reference deliveries to utilities or panel builders.
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。.
Send your voltage class and accuracy requirements – we confirm the design before production.
認証 & 品質保証
Our potential transformers are produced under ISO9001, ISO14001 and ISO45001 management systems, with CE and UL certification and type test reports.
製品認証
Potential Transformer Substation FAQ
Common questions about potential transformers for substations and factory sourcing.
サブステーションにおけるポテンシャルトランスの用途は何ですか？
どの精度クラスを選ぶべきですか？
What secondary voltages are available?
Can PTs be supplied as part of a substation package?
What testing is done?
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.