ABSTRACT
Aiming at the question of selecting fault line when single-phase grounded in neutral "point" ineffective ground system, according to resistive current, a criterion of line selection is proposed, and its feasibility is analyzed in depth. When the system detects zero-sequence voltage, the medium resistance is put into the neutral point of the system, and the resistive currents on each line are extracted, which is used as the criterion for malfunction line selection of the system. This paper analyses the influence of different resistance, ground resistance and capacitive current on the criterion of fault line selection. At the same time, PSCAD/EMTDC platform is used to simulate and verify the reliability of malfunction line selection, and the algorithm is analyzed with MATLAB. And results show that the criterion has a high reliability coefficient, and can accurately select fault lines under different conditions of ground resistance and capacitive current.
- G. Eason, B. Noble, and I. N. Sneddon, "On certain integrals of Lipschitz-Hankel type involving products of Bessel functions," Phil. Trans. Roy. Soc. London, vol. A247, pp. 529--551, April 1955. (references)Google ScholarCross Ref
- J. Clerk Maxwell, A Treatise on Electricity and Magnetism, 3rd ed., vol. 2. Oxford: Clarendon, 1892, pp.68--73.Google Scholar
- S. Jacobs and C. P. Bean, "Fine particles, thin films and exchange anisotropy," in Magnetism, vol. III, G. T. Rado and H. Suhl, Eds. New York: Academic, 1963, pp. 271--350.Google Scholar
- K. Elissa, "Title of paper if known," unpublished.Google Scholar
- R. Nicole, "Title of paper with only first word capitalized," J. Name Stand. Abbrev., in press.Google Scholar
- Y. Yorozu, M. Hirano, K. Oka, and Y. Tagawa, "Electron spectroscopy studies on magneto-optical media and plastic substrate interface," IEEE Transl. J. Magn. Japan, vol. 2, pp. 740--741, August 1987 [Digests 9th Annual Conf. Magnetics Japan, p. 301, 1982].Google ScholarCross Ref
- M. Young, The Technical Writer's Handbook. Mill Valley, CA: University Science, 1989.Google Scholar
Recommendations
Based on FTU with Wavelet Decomposition Waveform Adaptive Area Calculation for Single-phase Ground Fault Line Selection in Distribution Network
ICMTMA '10: Proceedings of the 2010 International Conference on Measuring Technology and Mechatronics Automation - Volume 01Using wavelet to achieve fault line selection, many traditional methods used single module extreme point to describe the amount of transient current mutation. However, influenced by the diversity of fault modes and the complexity of transient frequency ...
Fault Line Selection Method for Single Phase Earth Fault Based on Transient Signals in the Frequency Band
ISDEA '10: Proceedings of the 2010 International Conference on Intelligent System Design and Engineering Application - Volume 01A novel approach in distribution protection technique of fault line selection is presented based on transient signals detected with the wavelet transform maximal module in this paper. The characteristic frequency band of each line, in which the maximal ...
Single-phase Grounding Fault Line Selection Method of Ring Distribution Network Based on Classification Method
AIAM2021: 2021 3rd International Conference on Artificial Intelligence and Advanced ManufactureConsidering the reliability of the distribution network, China's low- and medium-voltage distribution network adopt low-current grounding methods. Single-phase grounding faults frequently occur in small-current grounded distribution networks, and the ...
Comments