Browse > Article
http://dx.doi.org/10.4313/JKEM.2010.23.5.413

Monitoring Technique and Device of Surface Contamination for Line-Post Insulator  

Kil, Gyung-Suk (Division of Electrical and Electronics Engineering, Korea Maritime University)
Park, Dae-Won (Division of Electrical and Electronics Engineering, Korea Maritime University)
Jung, Kwang-Seok (Division of Electrical and Electronics Engineering, Korea Maritime University)
Kim, Sun-Jae (Division of Electrical and Electronics Engineering, Korea Maritime University)
Seo, Dong-Hoan (Division of Electrical and Electronics Engineering, Korea Maritime University)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.23, no.5, 2010 , pp. 413-417 More about this Journal
Abstract
Line to ground faults by deterioration of insulators has frequently occurred in power system, and the main cause is surface contamination of the insulators. The contamination of insulator is analyzed by monitoring the surface leakage current flowing them. The suspension insulator is monitored by installation of a zero-phase current sensor(ZCT), but the line-post insulator is impossible to apply the same method because of its large diameter structure. This paper proposed a detection method of surface leakage current for a line-post insulator, and it can easily be applied to new and/or built insulators. The leakage current is indirectly calculated from the potential difference between the metal electrode attached on the surface of insulator and the ground connector. To evaluate the performance of the proposed method, the leakage current is compared as a function of contamination condition controlled by the density of NaCl solution. The leakage current is proportioned to the density of NaCl solution, and the voltage detected by the electrode showed the same trend. From the experimental results, we designed and fabricated a monitoring device which is composed of a detection electrode, signal converter, microprocessor, and ZigBee, and its measurement range is $10{\mu}A{\sim}5mA$.
Keywords
Line-post insulator; Contamination; Surface leakage current; Detection electrode; Potential difference; Monitoring device;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 J. W. Chang and R. S. Gorur, IEEE Trans. Dielectr. Electr. Insul., 1, 1039 (1994).   DOI
2 H.-H. Lee, J.-S. Lim, S.-Y. So, and J. Lee, J. KIEEME 20, 188 (2007).
3 S. Kumagai and N. Yoshimura, IEEE Trans. Dielectr. Electr. Insul. 11, 681 (2004).   DOI
4 R. S. Gorur, J. Montesinos, L. Varadadesikan, S. Simmons, and M. Shah, IEEE Trans. Dielectr. Electr. Insul. 4, 767 (1997).   DOI
5 M. Otsubo, T. Hashiguchi, C. Honda, O. Takenouchi, T. Sakoda, and Y. Hashimoto, IEEE Trans. Dielectr. Electr. Insul. 10, 1053 (2003).   DOI
6 A. Cavallini, S. Chandrasekar, and G. C. Montanari,IEEE Trans. Dielectr. Electr. Insul. 14, 23 (2007).   DOI
7 H.-G. Cho, D.-H. You, U.-Y. Lee, and H.-N. Kim,J . KIEEME 20, 273 (2007).
8 G. Montoya, I. Ramirez, and J. I. Montoya, Proc. IEE Generation, Transmission and Distribution 151,334 (2004).   DOI
9 S. Chandrasekar, C. Kalaivanan, A. Cavallini, and G.Montanari, IEEE Trans. Dielectr. Electr. Insul. 16,574 (2009).   DOI
10 R. Sarathi and S. Chandrasekar, Electr. Power Syst.68, 137 (2004).   DOI
11 B.-W. Min and H.-C. Myoung, Korea Patent, 1009310210000 (2009).
12 A. E. Vlastos and T. Orbeck, IEEE Trans. PD, 11,1066 (1996).
13 T. Suda, IEEE Trans. Dielectr. Electr. Insul. 8, 705(2001).   DOI
14 IEEE Std. C62.42, IEEE Guide for the application of gas tube arrester low-voltage surge-protective devices p. 23, 1992.