- All
- Product Name
- Product Keyword
- Product Model
- Product Summary
- Product Description
- Multi Field Search
A current transformer is an electrical device used to measure alternating current in power systems. It is widely applied in power distribution networks, industrial equipment, monitoring systems, and protection circuits. The main function of a current transformer is to convert a large current flowing in a conductor into a smaller and standardized current that can be safely measured by instruments such as ammeters, power meters, relays, or monitoring devices. By reducing the current to a manageable level, the transformer allows measurement equipment to operate safely without being exposed to high electrical loads.
Many people use the terms multimeter and voltmeter interchangeably, but they are not the same. A voltmeter is a single‑purpose tool, while a multimeter is a comprehensive device that includes a voltmeter as one of its functions. Understanding their differences helps users choose the right tool for electrical work.
A current transducer is an essential electrical device that converts an alternating or direct current into a standardized output signal, such as 4–20 mA, 0–5 V, or 0–10 V. Its main purpose is to isolate, measure, monitor, and protect electrical systems by providing safe, accurate, and reliable current information for control and automation. Without current transducers, modern power systems, industrial equipment, and electronic devices would lack real-time feedback and effective protection.
A digital panel meter (DPM) is an electronic instrument that displays electrical values such as voltage, current, resistance, or temperature as clear numerical readings, unlike the pointer movement of analog meters. It is widely used in control panels, power supplies, and industrial equipment for its high accuracy, readability, and stability. This explanation focuses on digital voltage meters, while also covering digital current meters.
A power transducer is an electrical measuring device that converts electrical parameters such as voltage, current, power, frequency, or power factor into standard analog or digital signals for monitoring, control, and data acquisition systems. It acts as an essential bridge between high-power electrical circuits and low-voltage control, automation, or measurement equipment, ensuring safe, accurate, and isolated signal transmission. Widely used in power distribution, industrial automation, energy management, and electrical equipment, power transducers provide stable and reliable data for real-time monitoring and intelligent control.
Outdoor waterproof current transformers (CTs) are essential components in modern electrical distribution and industrial monitoring systems. Designed for reliable performance in harsh environments, these devices convert high primary currents to standardized, measurable secondary currents while maintaining environmental protection and long-term operational stability. Their practicality and operability have made them indispensable in utility grids, renewable energy installations, and smart monitoring infrastructures worldwide.
A leading plastic packaging manufacturer （Hengda Sujiao）was facing repeated production interruptions caused by unexpected motor failures in its extrusion lines. Each shutdown resulted in material waste, delayed shipments, and higher maintenance expenses. Traditional protection devices such as circuit breakers could only trip during severe faults, but they could not detect gradual overload, phase imbalance, or abnormal current fluctuations. To improve reliability and reduce risk, the company introduced a comprehensive monitoring solution based on a high accuracy current transducer system supplied by Hubei Tianrui Electronic Co., Ltd.
An AC current transducer is a device used to measure alternating current and convert it into a proportional, standardized output signal that can be easily monitored, recorded, or processed by control systems. In electrical systems, alternating current constantly changes direction and magnitude, which makes direct measurement and integration with automation equipment more complex. The AC current transducer solves this challenge by sensing the current flowing through a conductor and producing an isolated output signal such as 4 to 20 mA, 0 to 5 V, or 0 to 10 V. This output can then be safely transmitted to programmable logic controllers, digital panel meters, data acquisition systems, or energy management platforms.
