Principle of Operation
U current transformers (CTs) operate based on electromagnetic induction, converting high currents from a primary conductor into proportional, manageable currents for measurement and monitoring. These transformers feature a U-shaped magnetic core that encloses the conductor carrying the current to be measured. Hewei’s U current transformers are engineered to ensure high accuracy by reducing core losses and maintaining linearity under varying load conditions. The induced current in the secondary winding is directly proportional to the primary current, making them suitable for applications such as power metering, protection systems, and energy monitoring.

Applications in Electrical Systems
Hewei’s U current transformers are indispensable in electrical systems requiring precision and reliability. In power distribution networks, they provide critical data for load analysis, helping operators maintain balanced and efficient energy flow. Additionally, these transformers play a key role in protective relaying systems by detecting overcurrent or short circuits, ensuring safe operation of electrical equipment. The compact U-shaped design makes Hewei’s transformers ideal for retrofitting into existing setups, even in tight spaces. For those seeking U current transformer for sale, Hewei offers high-quality, customizable solutions for diverse industrial needs.
Advantages of Hewei U Current Transformers
Hewei’s U current transformers are crafted using advanced materials and innovative engineering techniques to deliver superior performance and durability. The use of high-grade silicon steel cores ensures minimal energy loss and improved thermal stability in high-demand environments. Moreover, Hewei offers a range of customizable options, including various core sizes, accuracy classes, and insulation configurations, to meet specific industry requirements. This makes Hewei not only a leading manufacturer but also a trusted current transformer supplier worldwide, catering to the evolving demands of modern electrical systems.
The Importance of Accuracy in U Current Transformers
- Ensures Reliable Energy Measurement
Accurate U current transformers are critical for precise energy measurement in power distribution systems, converting high currents to manageable values without compromising data integrity. - Improves System Protection
The accuracy of U current transformers impacts protective relays’ performance, ensuring timely detection of overcurrent or faults to safeguard electrical equipment. - Enhances Power Quality Monitoring
With Hewei’s high-accuracy transformers, engineers can analyze power quality metrics, such as harmonics and load imbalances, ensuring system stability and efficiency. - Supports Compliance with Standards
Accurate U current transformers, like those from Hewei, ensure compliance with IEC and ANSI standards, avoiding penalties and maintaining operational credibility. - Minimizes Energy Losses
Precision in Hewei’s transformers reduces core losses, enhancing performance and contributing to overall system efficiency, making them ideal for those seeking U current transformer for sale.
Trusted Supplier – Hewei
Hewei is a globally recognized current transformer supplier, known for delivering high-quality U current transformers and advanced electrical components. With a focus on precision engineering and innovation, Hewei ensures its products meet the demands of modern power systems, from energy metering to protective relaying. Backed by stringent quality control and exceptional customer service, Hewei has earned the trust of clients worldwide, offering reliable solutions for those seeking efficient and durable transformers.