DOI QR코드

DOI QR Code

Experimental Studies on the Motion and Discharge Behavior of Free Conducting Wire Particle in DC GIL

  • Wang, Jian (State Key Lab of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University) ;
  • Wang, Zhiyuan (State Key Lab of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University) ;
  • Ni, Xiaoru (State Key Lab of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University) ;
  • Liu, Sihua (State Key Lab of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University)
  • Received : 2016.09.26
  • Accepted : 2016.12.03
  • Published : 2017.03.01

Abstract

This study aims to restrain free conducting wire-type particles which are commonly and dangerously existing within DC gas-insulated transmission lines. A realistic platform of a coaxial cylindrical electrode was established by using a high-speed camera and a partial discharge (PD) monitor to observe the motion, PD, and breakdown of these particles. The probabilities of standing or bouncing, which can be affected by the length of the particles, were also quantitatively examined. The corona images of the particles were recorded, and particle-triggered PD signals were monitored and extracted. Breakdown images were also obtained. The air-gap breakdown with the particles was subjected to mechanism analysis on the basis of stream theory. Results reveal that the lifting voltage of the wire particles is almost irrelevant to their length but is proportional to the square root of their radius. Short particles correspond to high bouncing probability. The intensity and frequency of PD and the micro-discharge gap increase as the length of the particles increases. The breakdown voltage decreases as the length of the particles decreases.

Keywords

DC GIL;Free conducting wire particle;Motion patterns;PD features;Micro-discharge gap

References

  1. H. Koch,V. Minisandram and A. Ficheux, Gas Insulated Substations, John Wiley, Chichester, UK, 2014, p. 10-25.
  2. R. Sarathi, A. V. Giridhar, A. Maniand and K. Sethupathi, "Investigation of partial discharge activity of conducting particles in liquid nitrogen under DC voltages using UHF technique," IEEE Trans. Dielectrics and Electrical Insulation, vol. 15, no. 1, pp. 655-662, Jun. 2008. https://doi.org/10.1109/TDEI.2008.4543101
  3. Masanori Hara, Junya Suehiro, Hajime Maeda, Hideyuki Nakashima, "DC pre-breakdown phenomena and breakdown characteristics in the presence of conducting particles in liquid nitrogen," IEEE Trans. Dielectrics and Electrical Insulation, vol. 9, no. 1, pp. 23-30, Feb. 2002. https://doi.org/10.1109/94.983880
  4. J. R. Laghari and A.H. Qureshi, "A review of particlecontaminated gas breakdown," IEEE Trans. Electrical Insulation, vol. EI-16, no. 5, pp. 388-398, Oct. 1981. https://doi.org/10.1109/TEI.1981.298434
  5. Alan H. Cookson, Owen Farish and George M. L. Sommerman, "Effect of conducting particles on ac corona and breakdown in compressed $SF_6$," IEEE Trans. Power Apparatus and Systems, vol. PAS-91, no. 4, pp. 1329-1338, Jul. 1972. https://doi.org/10.1109/TPAS.1972.293262
  6. Alan H. Cookson and Owen Farish, "Particle-initiated breakdown between coaxial electrodes in compressed $SF_6$," IEEE Trans. Power Apparatus and Systems, vol. PAS-92, no. 3, pp. 871-876, Jun. 1973. https://doi.org/10.1109/TPAS.1973.293651
  7. M. M. Morcos, H. Anis and K. D. Srivastava, "Particle-initiated corona and breakdown in GITL systems," IEEE Trans. Dielectrics and Electrical Insulation, vol. 24, no. 4, pp. 561-571, Aug. 1989. https://doi.org/10.1109/14.34190
  8. Koh-ichi Sakai, Dan Labrado Abella, Yasin Khan, Junya Suehiro and Masanori Hara, "Theoretical and experimental studies for spherical free conducting particle behavior between non-parallel plane electrodes with ac voltages in air," IEEE Trans. Dielectrics and Electrical Insulation, vol. 10, no. 3, pp. 404-417, Jun. 2003. https://doi.org/10.1109/TDEI.2003.1207466
  9. Yasin Khan, Koh-ichi Sakai, Eun-Kyung Lee, Junya Suehiro and Masanori Hara, "Motion behavior and deactivation method of free-conducting particle around spacer between diverging conducting plates under DC voltage in atmospheric air," IEEE Trans. Dielectrics and Electrical Insulation, vol. 10, no. 3, pp. 444-457, Jun. 2003. https://doi.org/10.1109/TDEI.2003.1207471
  10. Bo Qi, Chengrong Li, Zhaoliang Xing and Zhen Wei, "Partial discharge initiated by free moving metallic particles on GIS insulator surface: severity diagnosis and assessment," IEEE Trans. Dielectrics and Electrical Insulation, vol. 21, no. 2, pp. 766-774, Apr. 2014. https://doi.org/10.1109/TDEI.2013.003585
  11. Alan H. Cookson, "Electrical breakdown for uniform fields in compressed gases," Proceedings of the Institution of Electrical Engineers, vol. 117, no. 1, pp. 269-280, Jan. 1970. https://doi.org/10.1049/piee.1970.0058
  12. A. H. Prakash, K. D. Srivastava and M. M. Morcos, "Movement of particles in compressed SF6 GIS with dielectric coated enclosure," IEEE Trans. Dielectrics and Electrical Insulation, vol. 4, no. 3, pp. 344-347, Jul. 1997. https://doi.org/10.1109/94.598292
  13. R. M. Radwan, R. Morsi and M. A. Abd-Allah, "Motion of free conducting particles in SF6 insulated systems under dc switching voltages," IEEE Trans. Dielectrics and Electrical Insulation, vol. 1, no. 1, pp. 25-30, Feb. 1994. https://doi.org/10.1109/94.300229
  14. Bo Qi, Cheng Rong Li, Zhen Hao and Bi Bo Geng, "Surface discharge initiated by immo-bilized metallic particles attached to gas insulated substation insulators: process and features," IEEE Trans. Dielectrics and Electrical Insulation, vol. 18, no. 3, pp. 792-800, Jun. 2011. https://doi.org/10.1109/TDEI.2011.5931067
  15. Koh-ichi Sakai, Shin-Ichiro Tsuru, Dan Labrado Abella and Masanori Hara, "Conducting particle motion and particle-initiated breakdown in dc electric field between diverging conducting plates in atmospheric air," IEEE Trans. Dielectrics and Electrical Insulation, vol. 6, no. 1, pp. 122-130, Feb. 1999. https://doi.org/10.1109/94.752020
  16. Jiangbo Jia, Fengbo Tao, Lanjun Yang and Qiaogen Zhang, "Motion analysis of spherical free conducting particle in non-uniform electric field of GIS under DC voltage," Proceedings of the CSEE, vol. 26, no. 8, pp. 106-111, Apr. 2006.
  17. N. N. Lebedev, I. P. Skalskaya, "Forces acting on a conducting sphere in field of a parallel plate condenser," Soviet Physics-Technical Physics, vol. 7, no. 3, pp. 268-270, Mar. 1962.
  18. M. Morcos, S. Zhang, K. Srivastava and S. M. Gubanski, "Dynamics of metallic particle contaminants in GIS with dielectric-coated electrodes," IEEE Trans. Power Delivery, vol. 15, no. 2, pp. 455-460, Apr. 2000.
  19. Kazutoshi Asano, Ryohei Hishinuma, Kyoko Yatsuzuka, "Bipolar DC corona discharge from a floating filamentary metal particle," IEEE Trans. Industry Applications, vol. 38, no. 1, pp. 57-63, Jan/Feb. 2002. https://doi.org/10.1109/28.980349