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,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

Introduction of Electric Current Sensor

An electric current sensor is an essential electronic device used to detect, measure, and monitor the magnitude of electric current in electrical circuits. It converts current signals into measurable voltage or digital output signals for power monitoring, equipment protection, energy metering, and industrial automatic control. Current sensors are widely applied in power supplies, new energy vehicles, photovoltaic systems, inverters, and industrial electrical equipment.

20/09/2026

Industry Information

12 Volt DC Transformer

A 12‑volt DC transformer, technically an AC‑DC power supply unit, converts mains alternating current into regulated 12‑volt direct current. Regular transformers handle only AC voltage transformation; this device adds rectification, filtering and voltage regulation circuits to deliver stable DC output for low‑voltage loads. It exists in numerous forms including wall‑mount adapters, desktop power bricks and DIN‑rail modules widely deployed in industrial and domestic scenarios.

16/09/2026

Industry Information

Light Transformer

Our high-quality light transformers are lightweight, compact, and energy-efficient power conversion devices specially designed for low-power electrical systems, civilian equipment, and small industrial applications. Different from heavy industrial transformers, light transformers feature small size, easy installation, low noise, and stable voltage output, making them the ideal choice for lightweight power transformation scenarios. They are widely applied in LED lighting, household electrical appliances, instrument equipment, control cabinets, communication devices, and small automation systems.

14/09/2026

Industry Information

Potential Transformer

A potential transformer, also known as voltage transformer, is a vital instrument transformer widely applied in high‑voltage power systems. Its core function is to step down high system voltage to a low, standardized secondary voltage for measurement, metering and relay protection purposes. It enables safe operation by isolating operators and low‑voltage equipment from dangerous high‑voltage circuits.

11/09/2026

Industry Information

Landscape Lighting Transformer & Small Transformer

Small transformers are compact‑form‑factor power solutions tailored for space‑constrained applications. Compared with standard landscape lighting transformers, they adopt streamlined lightweight structures, enabling wall‑mount or concealed installation without spoiling landscape aesthetics. While occupying minimal installation space, they retain stable voltage conversion and high energy efficiency.

09/09/2026

Industry Information

Industry Information

Current Transformer Design

A current transformer (CT) is an essential instrument transformer widely applied in power generation, transmission, and distribution systems. Its primary function is to step down high alternating current in power lines to a standardized low current signal for accurate measurement, metering, and relay protection. Modern current transformer design focuses on high measurement accuracy, low electromagnetic loss, good linearity, and strong anti-interference capability to adapt to complex grid operating conditions.

07/09/2026

Industry Information

Industry Information

Current Transformer Vs Voltage Transformer

Current transformers (CT) and voltage transformers (VT, also known as potential transformers PT) are two core instrument transformers widely deployed within power‑grid systems. Both serve to step down high‑level electrical signals to safe, measurable values for meters, protection relays and monitoring devices, yet they differ fundamentally in working principles, connection modes, application purposes and handling requirements.

04/09/2026

Industry Information

Current Transformer Applications

Current transformers (CTs) are essential instrument transformers designed to step‑down high primary current into a standardized low‑value secondary current for measurement, metering and protection. They isolate high‑voltage power systems from low‑voltage control circuits, ensuring operator safety while converting large currents to levels compatible with common electrical devices.

03/09/2026

Industry Information

Power Transducer

Current Sensor

Current Transformer

DIGITAL SHOWROOM

Solutions

Introduction of Electric Current Sensor

12 Volt DC Transformer

Light Transformer

Potential Transformer

Landscape Lighting Transformer & Small Transformer

Current Transformer Design

Current Transformer Vs Voltage Transformer

Current Transformer Applications

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