Sensing Method Using Multiple Quantities for Diagnostic of Insulators in Different Ambient Conditions.
Bystrík Dolník1, Ľuboš Šárpataky1, Iraida Kolcunová1
1Department of Electric Power Engineering, Faculty of Electrical Engineering and Informatics, Technical University of Košice, Letná 9, 04200 Košice, Slovakia.
Sensors (Basel, Switzerland)
|February 26, 2022
Summary
Diagnosing porcelain insulators using leakage current, dielectric loss, capacity, and electric charge can improve power supply reliability. These methods assess insulator performance under pollution and humidity, crucial for preventing failures.
Area of Science:
- Electrical Engineering
- Materials Science
- Power Systems
Background:
- Insulator failure in transmission and distribution lines leads to significant economic losses and widespread power outages.
- Traditional insulator diagnostics require manual inspection, posing logistical challenges and safety risks.
- Effective insulator diagnostics are vital for maintaining the reliability of electricity supply.
Purpose of the Study:
- To investigate the effectiveness of various diagnostic quantities for porcelain insulators.
- To evaluate the impact of pollution and humidity on insulator performance.
- To identify reliable methods for online insulator diagnostics.
Main Methods:
- Investigated porcelain insulators under varying pollution and humidity conditions.
- Measured leakage current, dielectric loss factor, capacity, and electric charge.
- Analyzed these quantities as indicators of insulator degradation.
Main Results:
- Leakage current, dielectric loss factor, capacity, and electric charge were found to be effective diagnostic quantities.
- Pollution and relative humidity significantly impact insulator electric strength and reliability.
- The study provides data on porcelain insulator behavior under environmental stresses.
Conclusions:
- The proposed diagnostic quantities offer a viable alternative to traditional methods for assessing insulator health.
- Understanding the influence of pollution and humidity is key to predicting and preventing insulator failures.
- Implementing these diagnostic methods can enhance the overall reliability of power transmission and distribution systems.
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