| Title |
Design of UHF Sensor for Partial Discharge Detection |
| DOI |
http://doi.org/10.5207/JIEIE.2024.38.6.512 |
| Keywords |
Breakdown characteristics; UHF sensor; Partial discharge (PD); Preventive diagnosis |
| Abstract |
Despite extensive research and practical applications in fault prevention diagnostics for power facilities, issues arising from environmental factors and subjective judgment errors persist. Particularly, the diagnosis of distribution-level facilities employs multiple methods, revealing limitations in terms of cost-effectiveness and reliability. Power facilities, operating under high-voltage and high-current conditions, are prone to degradation. To address these challenges, this study proposes a diagnostic sensor that measures electromagnetic waves emitted during partial discharge (PD). This paper presents the design of a high-sensitivity, reliable sensor. to minimize environmental influences and accurately detect PD signals for early diagnosis of insulation defects. The proposed cone-shaped sensor adopts a triangular short-circuit plate structure, achieving compactness and cost-efficiency while maintaining stable performance under various environmental conditions. Simulation analysis of reflection loss characteristics confirms that this sensor can serve as a diagnostic tool that meets the reliability and cost-efficiency requirements for power facilities. |