current transformer,transformer and current transducer Manufacturer & Supplier

WHO WE ARE

Hubei Tianrui Electronic Co., Ltd. was established in 1998. It is a high-tech enterprise specializing in the research and development, manufacturing and sales of various types of current transformer and current transducer. It is among the first batch of national key "little giant" enterprises with specialized, refined, distinctive and innovative features. The company has three subsidiaries, with over 37,000 square meters of its own factory buildings. It has more than 300 registered employees and over 1,000 sets of various types of automated equipment and testing instruments. It has an annual production capacity of 15 million transformers and sensors.Main products cover high-performance transformers of various types and electrical quantity sensors,such as Current Transformer,Split Core Current Transformer,Current Sensor,Power Transducer,Rogowski Coil,Digital Panel Meter and Hall Effect Current Sensor etc.

Power Transducer

A high-performance Power Transducer, integrating the core functions of current transducers and voltage transducers, precisely converts electrical parameters like active/reactive power, current, and voltage into standardized 4–20 mA/0–10 V signals. Ideal for industrial power systems, it ensures reliable monitoring, efficient energy management, and seamless automation, a must-have for optimizing power distribution and reducing operational costs.

Current Transducer:Our premium current transducer precisely captures AC/DC current data and converts it to industry-standard 4–20 mA/0–10 V signals. Easy to mount, low-maintenance, and highly reliable, it cuts operational costs while enhancing power management accuracy for your industrial projects.

Voltage Transducer:This high-performance voltage transducer captures AC/DC voltage data precisely, delivering industry-standard output signals. Low-maintenance, wide-range adaptable and durable, it boosts power control efficiency and suits diverse industrial applications perfectly for your business needs.

Current Sensor

The Current Sensor is an electronic device used to detect, measure, and monitor electric current in a conductor or circuit. Unlike traditional current transformers that rely on electromagnetic induction, current sensors can use a variety of working principles, including the hall effect sensor and high-precision current transducer.

The working principle depends on the sensor type:
Hall Effect Sensor: When current flows through a conductor, it produces a magnetic field. A Hall element placed near the conductor detects this field and generates a voltage proportional to the current. This method allows both AC and DC measurement.

High-Precision Current Transducer:A High-Precision Current Transducer converts current into a proportional signal using Hall effect or magnetic compensation technology. It features high accuracy, low drift, fast response, and strong electromagnetic immunity. Ideal for precise AC/DC current measurement in power systems, automation, and renewable energy applications.

Current Transformer

A Current Transformer (CT) is an essential device in modern power systems, primarily used to measure and monitor alternating current (AC). Its working principle is based on electromagnetic induction. When the primary winding, often consisting of just one or a few turns, carries the main current, it generates a magnetic field in the magnetic core.

Split Core Current Transformer: Measuring current through magnetic induction with a split-core design that allows easy installation without disconnecting cables. It features high accuracy, easy maintenance, and portability, making it ideal for retrofit projects, energy monitoring, and industrial current measurement applications.

Rogowski Coil: Works on the principle of electromagnetic induction, generating a voltage proportional to the rate of change of current. It features excellent linearity, wide frequency response, no magnetic saturation, and easy installation. Ideal for measuring high or transient currents in power systems and industrial applications.

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Solutions

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Smart Grid Energy Metering

In smart grids, current transformers provide accurate current measurement for digital meters.This ensures precise billing, load monitoring, and integration of renewable energy into the power system.
Relay Protection Device

Current transformer (CTs) feed signals to protective relays in factories. When abnormal currents occur, relays trip breakers, preventing motor burnout and costly equipment damage.
High-Precision Current Sensor Solutions And Application Fields

A high-precision current sensor is an advanced device designed to accurately measure electrical current and convert it into a proportional signal suitable for monitoring, protection, or control purposes.

Applications

Extensively used across various industries, including power and energy, railway transportation, mining, and industrial automation etc.

Enable traction monitoring,fault detection, and energy management, ensuring safe,and stable operation of trains and electrical systems.

Rail Transportation

Wide dynamic range, excellent electrical isolation, and power quality management for efficient system operation

Power and Energy Sector

High accuracy, compact design, fast response, electrical isolation, and real-time monitoring for battery, motor, and charging systems.

New Energy Vehicles

small transformer for industial automation

Real-time current monitoring, fault detection, energy management, and process control, ensuring efficient and safe system operation.

Industrial Automation

Equipment protection, energy efficiency, ensuring stable, reliable, and continuous operation of communication networks and data centers.

Communications Industry

Current Transformer (CTs) and Current Sensor for smart building automation

Load management,and power optimization, supporting efficient, safe, and intelligent operation of modern smart buildings.

Building Facility Management

Leader In The Electronics Industry

28 Years Industry Experience

Collection of scientific research, production, sales and service in one of the high-tech power electronics components.
60+ Patents

Including 15 inventions, 40 utility model patents, 6 appearance patents.
Technology R & D

Complete technical team and equipment conditions, 50+ R&D team and support customization.
Advantages

Fully automated production line, customized services, providing feasible solutions.

Partners

Latest News

Industry Information

Miniature Transformer

A miniature transformer is a compact electrical device designed to transfer electrical energy between circuits through electromagnetic induction, while maintaining a small size and lightweight structure. Despite its reduced dimensions, it performs the same fundamental function as a standard transformer: stepping voltage up or down, isolating circuits, and enabling efficient power distribution. Miniature transformers are widely used in modern electronic systems where space, efficiency, and reliability are critical.

29/04/2026

Industry Information

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Industry Information

Split Core Current Transducer

A split core current transducer is a high-efficiency, easy-install sensing device designed to measure alternating current in industrial, commercial and power distribution systems. Unlike traditional closed-core current sensors that require cable disconnection during installation, its split-core stru

28/04/2026

Industry Information

Industrial Current Transformer

An Industrial Current Transformer (CT) is a specialized instrument transformer designed to safely and accurately convert high alternating currents in industrial power systems into standardized low currents, facilitating measurement, monitoring, and protection of electrical equipment. As a core component in modern industrial power distribution and automation, it plays an irreplaceable role in ensuring the stability, safety, and efficiency of electrical networks.

27/04/2026

Industry Information

Industry Information

Ct Current Transformer

A CT Current Transformer is a vital electrical device designed to transform high alternating currents (AC) into standardized low currents (typically 5A or 1A) for measurement, protection, and control purposes in power systems. It is an essential component in power generation, transmission, and distribution networks, ensuring safe and accurate monitoring of electrical currents that would otherwise be too large to measure directly.

21/04/2026

Industry Information

3 Phase Current Transformer

A 3-phase current transformer (CT) is a specialized instrument transformer designed to measure alternating current in three-phase electrical systems. It functions by stepping down high primary currents to standardized, low secondary currents—typically 5A or 1A—making them safe and practical for measurement, protection, and control equipment. Widely used in power grids, industrial plants, substations, and commercial buildings, 3-phase CTs ensure accurate current monitoring while isolating high-voltage circuits from low-voltage measuring devices, protecting both personnel and instruments.

20/04/2026

Industry Information

Industry Information

Current Transformer Measurement: Principle, Applications And Key Considerations

A current transformer (CT) is a vital electrical device designed to measure alternating current (AC) in high-voltage and high-current power systems. It plays an indispensable role in power measurement, protection, and control, converting large primary currents into standardized secondary currents (typically 5A or 1A) that are safe and suitable for measurement instruments, relays, and other monitoring equipment. Unlike direct current measurement, CT measurement relies on electromagnetic induction to achieve isolation and scaling, ensuring both accuracy and operator safety.

17/04/2026

Industry Information

Industry Information

Current Transformer Sizing

Current transformer sizing is a critical step in electrical system design, as it ensures accurate current measurement, protection, and control. A current transformer (CT) converts high primary currents into standardized low secondary currents, typically 5A or 1A, which are compatible with measuring instruments, relays, and other protective devices. Improper sizing can lead to inaccurate readings, equipment damage, or failure of protective systems, making it essential to follow systematic guidelines.

16/04/2026

Industry Information

Industry Information

How Does A Current Transformer Work

A current transformer is a crucial instrument transformer used in electrical systems to measure alternating current safely and accurately. Its primary function is to step down high currents in power lines to much smaller, standardized values that can be easily handled by meters, relays, and control

13/04/2026

Industry Information

Power Transducer

Current Sensor

Current Transformer

DIGITAL SHOWROOM

Solutions

Miniature Transformer

Split Core Current Transducer

Industrial Current Transformer

Ct Current Transformer

3 Phase Current Transformer

Current Transformer Measurement: Principle, Applications And Key Considerations

Current Transformer Sizing

How Does A Current Transformer Work

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