Different types of voltage transformers include current transformers (CTs) and voltage transformers (VTs).
Comparing Precision Shunt Resistors with Other Current Measurement Techniques: Comparing precision shunt resistors with alternative current measurement techniques, such as Hall effect sensors and current transformers, discussing the advantages and limitations of each method.
FIEE was successfully held on July 18 and has been running for two days now. Visitors were in high spirits and OSWELL's booth was filled with visitors.
Professional products, quality assurance, OSWELL present at exhibitions in Mexico and Brazil
OSWELL will present at the INA PAACE Automechanika in Mexico and the FIEE in Brazil in July.
Micro current transformers have revolutionized the field of electrical current measurement by enabling precise and accurate monitoring of low-level currents. With their ability to step down current levels without sacrificing accuracy, these transformers find extensive use in applications where measuring currents in the microampere range is essential. In this article, we will explore the technical aspects of micro current transformers, their working principles, benefits, and the latest advancements that have elevated their significance in modern electronics.
Split-core iron core current transformers are electrical devices used to measure high voltage currents. They can convert high currents into low current outputs and ensure that the current information is not lost during output. This type of transformer consists of an iron core and several coils, with the iron core able to induce current onto the coils which is then stepped down through the circuit.
The first-ever InnoEX, along with the Hong Kong Electronics Fair (Spring Edition) has opened at the Hong Kong Convention and Exhibition Centre at 12-15/04/2023, attracting a large number of professional visitors to stop, consult and experience.
Motor test measurements usually require ammeters to be equipped with multiple shunt units to solve the problem of ensuring the desired measurement accuracy over a larger measurement range. At this point, the rated voltage drop of all shunt used must match that of the ammeter (e.g. 75 mV).
Rogowski coil measurement schematic
A rogowski coil is a circular coil evenly wound around a non-ferromagnetic material. The output signal is the derivative of the current with respect to time. Through a circuit integrating the output voltage signal, the input current can be truly restored. The coil has the characteristics of real-time current measurement, fast response speed, no saturation, suitable for AC, especially high frequency current measurement.
