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

Your trusted partner for power electronic component solutions

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

What Is Current Transformer Class?

A current transformer (CT) is a critical instrument transformer in power systems, tasked with converting high primary alternating currents into standardized low secondary currents (usually 1A or 5A) for safe measurement, protection, and control purposes. The current transformer class, primarily defi

10/04/2026

Industry Information

Bar Current Transformer: Definition, Structure, Working Principle And Applications

A bar current transformer (BCT) is a type of instrument transformer specifically designed to measure or protect high-current electrical systems. Unlike conventional current transformers with a wound primary coil, the BCT features a simple yet robust structure where the primary winding is replaced by a single, straight conductor—typically a copper or aluminum bar—that passes through the center of a magnetic core. This design makes it ideal for high-voltage and high-current applications, such as power transmission lines, switchgear, and industrial power distribution systems, where space efficiency and reliability are critical.

09/04/2026

Industry Information

Current Transducer: Working Principle And Applications

A current transducer is an electronic device designed to measure electrical current (AC or DC) and convert it into a standardized, measurable output signal—typically a voltage or current—that is proportional to the input current. It plays a crucial role in power systems, industrial automation, renewable energy, and electronic equipment, enabling accurate current monitoring, control, and protection.

08/04/2026

Industry Information

Introduction To Hall Effect Current Transducer

A Hall effect current transducer is a sophisticated electronic device designed to measure electric current accurately and non-intrusively, leveraging the Hall effect—a physical phenomenon discovered by Edwin Hall in 1879. Unlike traditional current measurement methods that require direct electrical contact with the conductor, this transducer detects the magnetic field generated by the current flow, converting it into a proportional electrical signal that can be easily measured, processed, or displayed. This non-contact feature makes it ideal for high-voltage, high-current, and harsh industrial environments where safety and isolation are critical.

03/04/2026

Industry Information

Ring Current Transformer

A ring current transformer, also referred to as a toroidal or ring-type current transformer (CT), is a critical instrument transformer extensively applied in electrical power systems for current measurement, monitoring, and protective relaying. Characterized by its circular, hollow core structure, it stands as one of the most prevalent current-sensing devices in modern power engineering due to its superior performance and flexible installation.

02/04/2026

Industry Information

Current Transformer CT Introduction

A Current Transformer CT is a critical instrument transformer widely applied in power systems, designed to convert high alternating current (AC) into a standardized, low-level secondary current proportional to the primary current. Operating on Faraday’s Law of Electromagnetic Induction, it consists of a ferromagnetic core, a low-turn primary winding connected in series with the power circuit, and a high-turn secondary winding linked to measuring or protective devices. Unlike power transformers, CTs prioritize measurement accuracy and electrical isolation over energy transfer, imposing negligible load on the primary circuit to ensure stable system operation.

01/04/2026

Industry Information

Professional Current Sensor Manufacturer with Decades of Precision Expertise

At our core, Hubei Tianrui Electronic Co., Ltd. specializes in the R&D and production of diverse current sensor types, including Hall effect sensors, fluxgate sensors, Rogowski coil current sensors, and more, adhering to magnetic balance and electromagnetic induction principles for stable performance. Drawing on advanced technologies and rich industry experience, our products boast high accuracy, fast response times, and robust anti-interference capabilities, addressing the critical need for precise current monitoring in high-voltage, high-temperature, and electromagnetically noisy environments. Our current sensors support AC and DC current measurement with excellent linearity and low temperature drift, ensuring stable performance even in extreme operating conditions.

31/03/2026

Industry Information

Industry Information

What Is A Solid Core Current Transformer ?

A solid core current transformer (CT) is a precision instrument transformer designed to step down high alternating current (AC) in power systems into a standardized, low‑level secondary current (typically 1A or 5A) for safe measurement, monitoring, and protective relaying. It operates on the principle of electromagnetic induction, where the primary current flowing through a conductor passing through its core generates a magnetic flux, which in turn induces a proportional current in the secondary winding wound around the core. The defining feature of a solid core CT is its continuous, unbroken toroidal (donut‑shaped) magnetic core, usually made of high‑permeability materials like silicon steel or ferrite.

30/03/2026

Industry Information

Power Transducer

Current Sensor

Current Transformer

DIGITAL SHOWROOM

Solutions

What Is Current Transformer Class?

Bar Current Transformer: Definition, Structure, Working Principle And Applications

Current Transducer: Working Principle And Applications

Introduction To Hall Effect Current Transducer

Ring Current Transformer

Current Transformer CT Introduction

Professional Current Sensor Manufacturer with Decades of Precision Expertise

What Is A Solid Core Current Transformer ?

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