CR4220-20

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Current transducers may be divided into two main categories: static and dynamic. Static current transducers are composed of active circuit elements, while dynamic current transducers use a physical element such as a coil or a conductor to transform a current into an alternating voltage. Among the dynamic current transducers, CR4220-20 is a very common and reliable device used for measuring current in a variety of industrial applications. This article will explore the features and working principles behind this time-tested current transducer.

CR4220-20 is a dynamic current transducer, composed of a rigid frame and a movable iron core. The iron core has two windings: the primary and the secondary. The primary winding is directly connected to the power source, while the secondary winding is connected to the measuring circuit. As current flows through the primary winding, an electromagnetic field is created which generates a force on the iron core causing it to move. This movement leads to changes in the flux linking the primary and secondary windings, inducing an alternating voltage across the secondary winding. This voltage is then used to measure the magnitude of the current passing through the primary winding.

CR4220-20 offers several advantages compared to other current transducers. It offers very precise measurements, high accuracy, low cost, long lifetime, and minimal power consumption. Since it is a solid-state device, it offers very low noise and interference levels, making it suitable for applications where a high degree of noise reduction is necessary. Furthermore, optional varistors can be used to increase its sensitivity and improve its performance.

The CR4220-20 is mainly used in industrial applications, such as process control, energy efficiency monitoring, motor and generator control systems, current and voltage measurements, and high-precision instrumentation. In addition, it is widely used for research purposes, including audio signal processing, biomedical equipment, and energy management systems. In many cases, multiple CR4220-20s can be used together to measure currents in three-phase applications. It is also an ideal choice for safety equipment, as it has a very high degree of accuracy due to its low-power consumption.

In short, the CR4220-20 is a trusted and versatile current transducer used for a variety of applications. It is composed of a rigid frame and a movable iron core, which generates a force on the core when current passes through the primary winding. This generates an alternating voltage across the secondary winding, which can be used to measure the current magnitude. This device offers excellent precision, accuracy, low cost, and minimal power consumption for high-precision instrumentation.

The specific data is subject to PDF, and the above content is for reference