High Voltage Voltage Transformer Manufacturers – HV VT Metering Supply
Subian Electric manufactures high voltage voltage transformers – also called potential transformers – for metering and protection up to 35 kV class, at our 50,000-square-metre factory in Xuzhou, Jiangsu, China. Our 350+ employees have served utilities in 50+ countries since 2019.
As a factory-direct manufacturer and supplier, we provide HV VTs 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
High Voltage Voltage Transformers We Manufacture
HV voltage transformers from 10 kV to 35 kV class for substation metering and protection – cast resin and oil immersed versions with routine testing.
What Is a High Voltage Voltage Transformer?
A high voltage voltage transformer (VT), also called a potential transformer (PT), steps HV line voltage down to a standard low level for protection relays and meters. Its insulation must handle the full line voltage safely.
HV VTs are essential in substations and switchgear for voltage sensing, synchronising and protection – accuracy and insulation quality decide how well the scheme performs.
- 10-35 kV class – HV VTs for substation and switchgear duty.
- Metering & protection – accuracy classes to suit your scheme.
- Cast resin or oil – construction matched to your environment.
- 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 High Voltage Voltage Transformers
We supply two HV VT types:
Single-phase VT
Standard units for line-to-line and line-to-earth sensing.
Three-phase VT
Combined units for balanced three-phase measurement.
HV Voltage Transformer 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 – 3P |
| 絶縁 | Cast resin / oil immersed |
| 周波数 | 50/60 Hz |
| 標準 | IEC 61869 |
HV VT Manufacturing at Our 50,000 m² Factory
From winding to casting, assembly and testing – every HV VT is built and tested at our Xuzhou facility with insulation and ratio verification.
OEM/ODM & Wholesale HV VT Supply
Utilities and panel builders can brand or resell HV VTs 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
Voltage Transformer vs Current Transformer
A voltage transformer measures voltage; a current transformer measures current. Both feed protection and metering with proportional signals, and both are part of a complete substation package.
We supply VTs alongside CTs and switchgear for coordinated protection packages.
Choosing a High Voltage Voltage Transformer Manufacturer
Verify accuracy test evidence and insulation quality. VT performance directly affects protection sensitivity and metering accuracy.
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 HV voltage transformers are produced under ISO9001, ISO14001 and ISO45001 management systems, with CE and UL certification and type test reports.
製品認証
High Voltage Voltage Transformer FAQ
Answers to the questions buyers ask most about high voltage voltage transformers.
高電圧変圧器とは何ですか？
What is the difference between VT and PT?
What accuracy classes are available?
Can VTs be supplied with switchgear?
What testing is done?
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.