High-Precision Current & Voltage Transformers
Reliable measurement solutions engineered for power distribution, substations, and industrial applications—designed by a professional manufacturer.
Trusted Manufacturer for Current and Voltage Transformers
6kV–110kV transformers produced under strict quality control, supporting OEM/ODM customization for global power systems.
Custom Transformer Solutions for Diverse Applications
Designed to match different grid structures and measurement requirements, ensuring accuracy, stability, and long-term system protection.
Our Transformer Series
Professional manufacturer of current and voltage transformers. Our product line includes ring-type CTs, split-core CTs, zero-sequence CTs, busbar types, and customized solutions for industrial, utility, and substation applications.
JDJ-12 Oil-Immersed Voltage Transformer
JDJ-11-6, 10, 12 Oil-Immersed Voltage Transformer JDJ-11-6, 10, 12 Oil-Immersed Voltage Transformer…
About Thomas Electric
Thomas Electric develops and manufactures high-quality current and voltage transformers for power, utility, and industrial systems. We deliver precise, reliable metering and protection for modern grids worldwide.
Focused on transformers for reliable power systems.
9000㎡
Standardized plant area
168+
Professional employees
6–110kV
Voltage range coverage
3000+
Projects & installations
Zhejiang Thomas Electrical Technology Co., Ltd. manufactures low- and high-voltage current transformers, voltage transformers, combined transformers, and high-voltage metering units. ISO9001-certified facilities and advanced testing ensure every unit meets strict metering standards.
With strong R&D and experienced engineers, we deliver dependable solutions for utilities, substations, and industrial users. Built for long-term stability, our transformers undergo rigorous QC for safe, accurate performance in real grid conditions.
Our Teams & Services
From engineering and prototyping to testing and shipment, we deliver country-standard transformers built for long-term stability, precise metering, and dependable protection across T&D grids, substations, and industrial power systems worldwide.
Experienced Engineering Team
Our engineers specialize in high-voltage CTs, VTs and combined transformers for substations and transmission networks. We check your drawings, lock in ratios and accuracy classes, and fine-tune insulation and structure for real site conditions—so approvals go smoother and equipment stays reliable in service.
Global Customization OEM/ODM
Different countries follow different grid standards. We support full OEM/ODM customization to IEC / ANSI / GB and local utility requirements. From creepage distance and terminals to mounting design, nameplates and packaging, every unit is built to match your specs and project needs.
Fast Delivery & Flexible MOQ
Standard models ship quickly, and custom orders follow a confirmed schedule. Typical global delivery is around 25 days. MOQ is flexible—trial orders of 1–3 units are accepted at normal pricing. We provide secure export packing, complete documents, and welcome inspections or factory visits.
Reliable Transformer Solutions for Modern Power Systems.
Precision CTs, VTs, and metering devices trusted by national projects and global partners.
Contact Us NowUpdates & Product Resources
Stay informed with the latest news, and access essential technical documents in one convenient place.
Latest Products
News & Documents
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2025-12-02
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2025-11-24
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2025-11-24
Why Choose Thomas Electric?
Thomas Electric is an ISO9001-certified manufacturer of 6kV–35kV current & voltage transformers. We deliver safe, accurate, and long-lasting metering and protection solutions worldwide.
Safety & Reliability First
Engineered for long-term stable operation in grid and industrial systems, even under harsh conditions.
High Accuracy Performance
National metering compliant, delivering precise measurement for T&D and substations.
Advanced Manufacturing & Testing
ISO9001 QC and modern testing facilities ensure stable quality in every batch.
Custom & OEM Solutions
We tailor designs to your system specs, regional standards, and project needs.
Proven Projects & Trusted Brand
Proven in major infrastructure projects and trusted by leading power companies.
Competitive Price, Fast Delivery
Efficient supply chain and logistics ensure competitive pricing and fast global delivery.
FAQs For Overseas Buyers
Quick answers about customization, ordering, MOQ, delivery, and factory visits at Thomas Electric.
Do you offer OEM/ODM and product customization?
Yes. We offer full OEM/ODM services for CTs, VTs, combination transformers, and metering devices. Ratios, accuracy classes, insulation levels, mounting designs, nameplates, and packaging can be customized to your standards.
What voltage range and products do you manufacture?
Our core product lines include CTs, VTs, high-voltage metering boxes, and combination transformers, covering 6kV–110kV for power metering, monitoring, and protection in grids and industrial systems.
Are your products certified and compliant?
Thomas Electric is ISO9001-certified. Each transformer is manufactured under strict quality control and tested to meet national metering standards. Full test reports and certificates are available.
What is your MOQ and how can we start an order?
MOQ is flexible. For trial orders, we can supply 1–3 sample units at normal pricing. Simply share your drawings or specifications, and our engineers will confirm the technical solution, lead time, and provide a detailed quotation accordingly.
What are the lead time and global delivery options?
Standard models ship quickly, and customized orders follow the agreed schedule. Typical global delivery time is about 25 days, with secure export packing and complete documents provided.
Can we visit your factory or arrange an inspection?
Absolutely. Overseas buyers are welcome to visit our factory anytime. We also support third-party inspections and remote video audits before shipment.
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