| Title |
Electromagnetic Characteristics Analysis of Electronic Voltage and Current Sensors for Precision Measurementof High-Voltage Equipment |
| DOI |
https://doi.org/10.5370/KIEE.2025.74.10.1740 |
| Keywords |
Electronic voltage sensor; electronic current sensor; high voltage; high accuracy; shield |
| Abstract |
The control devices of high-voltage power systems are changing to intelligent digital electronic equipment due to the development of electronic and communication technologies. It is necessary to develop electronic voltage and current sensors that are more precise than existing CTs or PTs and highly adaptable to the digital environment. In this paper, a voltage sensor using the voltage division law and a current sensor using a Rogowski coil were developed and electromagnetic field analysis was performed to improve stability and efficiency. The output characteristics of each sensor and the characteristics according to the shield variables were analyzed. This measuring equipment can contribute to the optimization of the power system through high-voltage current and voltage monitoring, such as real-time power quality monitoring, fault detection, and load prediction of the smart grid. |