About Thomas Electric
Thomas Electric (Zhejiang Thomas Electrical Technology Co., Ltd.) is a specialized manufacturer and developer of instrument transformers and high-voltage power metering equipment for medium- and high-voltage power systems. Our main products include current transformers (CTs), voltage / potential transformers (VTs / PTs), combined transformers, outdoor metering units, and high-voltage metering boxes.
We supply products covering voltage classes from 6kV to 110kV, including common international system voltages such as 11kV, 15kV, 22kV, 24kV, 33kV, 66kV, and 110kV. Serving both domestic and international markets, Thomas Electric provides reliable and safe solutions for power metering, monitoring, protection, and control applications.
As an ISO9001-certified manufacturer, Thomas Electric is equipped with advanced production and testing facilities sourced from both domestic and international suppliers. We maintain strict quality control throughout manufacturing and inspection to ensure consistent product performance, safety, and reliability.
With years of industry experience and a solid reputation in the power sector, Thomas Electric has earned the trust of customers through dependable quality, professional service, and practical engineering support.
Manufacturing, Development, and Customization
Thomas Electric is committed not only to manufacturing, but also to continuous product development and technical improvement. Our engineering and production teams work closely to develop practical, durable, and cost-effective transformer solutions for modern power systems. We continuously optimize product structure, insulation performance, measurement accuracy, and environmental adaptability to meet evolving market demands and application standards.
We offer OEM and customized production services based on customer drawings, technical parameters, installation conditions, and local grid requirements. Whether the project requires specific ratios, accuracy classes, burdens, insulation levels, mounting methods, terminal arrangements, or enclosure designs, our team can provide tailored solutions to match actual operating requirements.
Our main products include:
- Current Transformers (CTs)
- Voltage / Potential Transformers (VTs / PTs)
- Combined Transformers
- Outdoor Metering Units and Metering Boxes
- Custom Power Metering and Protection Equipment
Product Quality and Application
Our products are widely used in substations, utility grids, industrial power distribution systems, infrastructure projects, and large enterprise electrical networks. They are designed to support accurate electrical measurement, dependable relay protection, and safe system operation in a wide range of service environments.
All products are manufactured under strict ISO9001 quality management procedures and undergo careful testing and inspection before delivery. With extensive manufacturing experience and a strong focus on quality improvement, we are dedicated to meeting customer requirements for stability, safety, and long-term reliability.
Our technical and production teams are committed to helping customers solve practical power system challenges with high-quality transformer products and responsive support. Through reliable quality, flexible customization, competitive pricing, and efficient delivery, Thomas Electric has become a trusted partner for customers in the power industry.
Service and Commitment
Thomas Electric is committed to providing customers worldwide with dependable transformer solutions, responsive service, and long-term cooperation. We continue to improve product quality, optimize production efficiency, and strengthen supply chain coordination to deliver reliable products with competitive pricing and stable lead times.
With a focus on quality, engineering, and customer needs, Thomas Electric is ready to support power metering and protection projects with safe, accurate, and customized solutions.