Current Transformer In Switchgear Manufacturers – Integrated CT Supply
Subian Electric manufactures switchgear with integrated current transformers – KYN28A-12 switchgear and XGN15-12 / HXGN15-12 ring main units with CTs for metering and protection. Our 50,000-square-metre factory in Xuzhou, Jiangsu, China, has served utilities in 50+ countries since 2019.
As a factory-direct manufacturer and supplier, we provide switchgear with correctly rated, factory-tested current transformers – removing the interface risk of buying CTs separately.
Send your switchgear configuration and CT requirements. Our export team will respond with a quotation and drawings.
2019年以降 · 50,000m² · 350人以上のスタッフ
Switchgear With Current Transformers We Manufacture
KYN28A-12 withdrawable switchgear and ring main units with integrated current transformers for metering, protection and control, tested per IEC 62271.
What Is a Current Transformer in Switchgear?
A current transformer (CT) in switchgear steps down high circuit current to a safe level for protection relays and metering instruments. Correct rating and accuracy are essential for reliable protection and billing.
CTs are integrated into the switchgear busbars and cable connections during manufacture, so the rating, accuracy class and burden are matched to the protection scheme from day one.
- Integrated CTs – metering and protection CTs built into switchgear.
- Correctly rated – ratio, accuracy class and burden matched to your scheme.
- Factory tested – CT polarity and ratio verified with the panel.
- 50,000m²工場 – in-house switchgear assembly 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 Current Transformers in Switchgear
We integrate two CT types into switchgear:
Metering CT
Accurate class CTs for energy metering and instrumentation.
Protection CT
Class 5P / 10P CTs for relay protection schemes.
Switchgear CT Specifications
| パラメータ | 仕様 |
|---|---|
| 電圧 | 12 kV / 40.5 kV |
| Ratio | Per protection / metering scheme |
| 精度クラス | 0.2S – 5P20 |
| 周波数 | 50/60 Hz |
| Switchgear | KYN28A-12 / XGN15-12 |
| 標準 | IEC 62271 / GB 3906 |
Switchgear With CT Manufacturing at Our 50,000 m² Factory
From busbar assembly to CT mounting, wiring and testing – every panel is built and tested at our Xuzhou facility with CT polarity verified.
Production Workshop
Controlled winding, core processing and vacuum drying with quality checkpoints between every stage, so quality is built in from the start.
Quality & Testing Center
Routine inspection on every unit before delivery, with type test reports 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.
OEM / ODM / Agency Supply
Custom branding, packaging and configurations for global partners – from nameplate to complete product design – supported by a dedicated export team.
Switchgear With Current Transformer Factory Price – Request a Quote
OEM/ODM & Wholesale Switchgear CT Supply
Panel builders and distributors can brand or resell switchgear with custom nameplates and documentation.
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
Integrated CTs vs Separate CT Purchase
Buying CTs separately risks wrong ratios, polarity errors and installation delays. Integrated CTs are rated, mounted and tested with the panel – one supplier, one test record.
For utilities and panel builders, integrated supply simplifies procurement and commissioning.
Choosing a Current Transformer In Switchgear Manufacturer
Verify the manufacturer’s switchgear test capability and CT rating engineering. Correct CT selection is what makes protection schemes work.
Subian Electric offers a 50,000m² factory, 350+ employees, ISO9001, CE and UL certification and export to 50+ countries.
Send your switchgear configuration and CT requirements – we confirm the design before production.
Certifications & Quality Assurance
Our switchgear with CTs is produced under ISO9001, ISO14001 and ISO45001 management systems, with CE and UL certification and type test reports.
Product Certifications
Current Transformer In Switchgear FAQ
Common questions about current transformers in switchgear and factory sourcing.
電流変圧器は何に使用されますか？
What CT ratios and accuracy classes do you supply?
Can CTs be added to existing switchgear?
How is CT polarity verified?
最小注文数量とは何ですか？
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.