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.

DIGITAL SHOWROOM

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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

Leakage Current Sensor: Indispensable Detector for Electrical System Safety

A leakage current sensor is a high-precision measuring component specially designed to track residual leakage current inside power circuits, acting as the first line of defence against electric shock and electrical fire hazards in modern power distribution, new energy and industrial control systems. Ordinary current transformers only measure load current, yet this sensor focuses on tiny stray currents escaping from damaged insulation, aging cables, faulty wiring or incomplete equipment grounding, which pose hidden safety risks hard to spot via regular monitoring tools. It converts faint leakage signals into readable electrical outputs to support real-time monitoring, threshold alarming and power interlock protection.

09/07/2026

Industry Information

Three Phase Digital Multimeter

A threephase digital multimeter is a professional precision measuring instrument specially designed for testing three-phase alternating current systems, widely applied in power distribution stations, industrial motor equipment, photovoltaic power stations, electrical cabinet debugging and building electrical maintenance. Unlike ordinary single-phase multimeters that only support single-circuit detection, this device integrates synchronous measurement functions for three groups of voltage, current, power and frequency signals, making it an indispensable tool for electrical engineers and maintenance technicians engaged in three-phase power work.

08/07/2026

Industry Information

Micro Precision Current Transformer

Micro Precision Current Transformer is a high-precision sensing component specially designed for tiny, low-amplitude AC current measurement, widely adopted in precision power monitoring, new energy converters, medical power supplies, laboratory test equipment and industrial automation control systems. Unlike conventional large current transformers built for heavy industrial loads, this miniature product focuses on capturing microampere to low-ampere weak current signals with outstanding linearity and low measurement error, filling the technical gap in high-accuracy micro-current detection scenarios.

07/07/2026

Industry Information

What Is The Difference between A Current Transducer And A Voltage Transducer?

A current transducer and a voltage transducer are both types of electrical measurement devices used in power systems, automation, and industrial monitoring. Their main purpose is to convert electrical quantities (current or voltage) into a standardized, measurable output signal that can be used by c

06/07/2026

Industry Information

What Is A Rogowski Coil Used For?

A Rogowski coil is a flexible, air-cored current-sensing transducer widely applied to measure alternating current (AC), transient surges, and high-frequency pulse currents, often paired with an integrating module to convert its raw differential voltage output into standard readable signals. Unlike traditional iron-core current transformers (CTs), it contains no ferromagnetic material, eliminating magnetic saturation and core loss, making it indispensable for modern power measurement and protection scenarios.

03/07/2026

Industry Information

Hall Effect Current Sensors

First discovered by physicist Edwin Hall in 1879, Hall effect current sensors have become the dominant isolated current measurement component across power electronics, automotive and industrial equipment, solving critical limitations of traditional shunt resistors and current transformers. Based on the Hall effect principle, when charged carriers inside a semiconductor plate pass through a perpendicular magnetic field, a measurable transverse voltage (Hall voltage) forms. Since the magnetic flux surrounding a conductor is linearly proportional to its carried current per Ampere’s law, the Hall voltage can be converted into an accurate signal representing current magnitude, achieving fully galvanic isolation between high-voltage primary circuits and low-voltage control circuits.

01/07/2026

Industry Information

Single Phase Power Transformer

A single phase power transformer is a fundamental electromagnetic device designed to transfer single-phase alternating current power between two circuits by electromagnetic induction. Unlike three-phase transformers built for large industrial and grid transmission, this compact unit serves low-power, residential, commercial and small-scale industrial loads. It adjusts voltage levels up or down while isolating primary and secondary circuits, forming a critical part of low-voltage power supply systems worldwide.

30/06/2026

Industry Information

Mini Current Transformer

Mini current transformer, often abbreviated as mini CT, is a compact, lightweight derivative of traditional electromagnetic current transformers, specially designed for low-current monitoring, space-limited electrical equipment and intelligent power measurement systems. Unlike large industrial CTs used in high-voltage power substations, mini CTs shrink magnetic cores, winding structures and installation dimensions while retaining accurate current signal conversion functions, making them an indispensable sensing component in smart electricity, new energy, household appliances and industrial control sectors. This article elaborates on its structural characteristics, working principles, key performance strengths and mainstream application scenarios.

29/06/2026

Industry Information

Power Transducer

Current Sensor

Current Transformer

DIGITAL SHOWROOM

Solutions

Leakage Current Sensor: Indispensable Detector for Electrical System Safety

Three Phase Digital Multimeter

Micro Precision Current Transformer

What Is The Difference between A Current Transducer And A Voltage Transducer?

What Is A Rogowski Coil Used For?

Hall Effect Current Sensors

Single Phase Power Transformer

Mini Current Transformer

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