Abstract
An electronic voltage transducer (EVT) based on electrostatic charge escape is proposed in this paper. Its working principle is to apply the electric field (or voltage) to the electrostatic charges of the electrode, and the electrostatic charges are forced to escape directionally to form an escape current, so the voltage measurement can be achieved by detecting the escape current. Based on Gauss’s theorem and dielectric polarization principle, the mathematical models of the new EVT’s power frequency characteristics, harmonic transfer characteristics and transient response characteristics are studied. And the COMSOL multiphysics coupling simulation is employed to verify these characteristics. The simulation shows that the new EVT can linearly transform the primary voltage, realize harmonic measurement, and have satisfactory transient response. Finally, the experiment verification system is established to examine the new EVT. And the result demonstrates that the EVT has a 0.5 class accuracy, and enables to accurately reflect the characteristics of harmonics and impulse voltage.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: IEEE Transactions on Instrumentation and Measurement
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
