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http://dx.doi.org/10.5370/KIEE.2015.64.3.485

Performance verification and improvement of the frequency analysis unit for GIS Preventive & Diagnostic Monitoring System  

Kim, Won-Gyu (Dept. of Electronics and Electrical Engineering, Kyungpook National University)
Kim, Min-Soo (Hyosung Corporation Power System Performance Unit)
Baek, Young-Sik (Dept. of Electronics and Electrical Engineering, Kyungpook National University)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.64, no.3, 2015 , pp. 485-491 More about this Journal
Abstract
This paper shows the design improvement and test model of FAU (Frequency Analysis Unit) in PDD (Partial Discharge Diagnosis system) for 800kV GIS (Gas Insulated Switchgear). We found some problems during operation of previous FAU, such as the aging of fiber-optic converter that can cause communication error, the malfunction of signal analysis circuit etc. And then we solved those problems by design improvement and verified the performance through type test. To monitor partial discharge, the performance of UHF sensor is important but the performance of frequency analysis unit is also very important. So we solved communication error, the malfunction of signal analysis circuit and then increased the operation reliability of FAU by improving fiber-optic converter and signal analysis circuit. Accredited testing laboratory carried out the performance verification test according to performance test criteria and procedure of reliability test standards, IEC-60225, 61000 and 60068 etc. We confirmed the test results which correspond with the performance test criteria.
Keywords
GIS; PDMS; PD; UHF (Ultra High Frequency); FAU (Frequency analysis Unit);
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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