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Calculation of VFTO and VFTC in the 550 kV GIS with Mitigation Techniques

  • M. Naga Jyothi
  • C. V. K. Bhanu
  • CH. RamyaEmail author
Conference paper
  • 26 Downloads
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 626)

Abstract

The 550 kV gas-insulated substation is designed in the electromagnetic transient program (EMTP-RV) which simulated the design when the disconnector switch is operated. The operation of disconnector switch induces the VFTOs within a few nanoseconds, and the currents associated with VFTOs produce the electromagnetic fields. To reduce the very fast transients in the system, the mitigation techniques are to be implemented. In this paper, to reduce very fast transients in the system, the ferrite rings are installed at the disconnector switch. And it also have the impact on spark resistance and transformer entrance capacitance which will reduce the overvoltages.

Keywords

VFTO VFTC Spark resistance Ferrite rings Transformer entrance capacitance EMTP 

References

  1. 1.
    V. Himasaila, M. Nagajyothi, T. Nireekshana, Review on analysis of very fast transient overvoltage in gas insulated substation. Int. J. Sci. Res. Eng. Technol. (IJSRET) 6(7) (2017). ISSN 2278–0882Google Scholar
  2. 2.
    L. Tiechen, Z. Bo, Calculation of very fast transient overvoltages in GIS, in IEEE Transmission and Distribution Conference & Exhibition (2005)Google Scholar
  3. 3.
    A. Tavakoli, A. Gholami, H. Nouri, Comparision between suppressing approaches of very fast transients in gas-insulated substations (GIS). IEEE Trans. Power Deliv. 28(1) (2013)Google Scholar
  4. 4.
    V.V. Kumar, M.J. Thomas, M.S. Naidu, VFTO computation in a 420 kV GIS, in High Voltage Engineering Symposium (1999), pp. 22–27Google Scholar
  5. 5.
    P. RamaKrishna Reddy, J. Amarnath, Nanocrystalline to suppress VFTO and VFTC of 245 kV gas insulated substation. Int. J. Comput. Appl. 70(13), 0975–8887 (2013)Google Scholar
  6. 6.
    M.A. Abd-Allah, A. Said, E.A. Badran, New techniques for mitigation in GIS. J. Electr. Eng. (2014)Google Scholar
  7. 7.
    M. Mohana Rao, M.J. Thomas, B.P. Singh, frequency characteristics of very fast transient currents in a 245-kV GIS. IEEE Trans. Power Deliv. 20(4) (2005)Google Scholar
  8. 8.
    J.V.G. Rama Rao, J. Amarnath, S. Kamakhaiah, Simulation and experimental method for the suppressing of very fast transient overvoltages in a 245 kV GIS using ferrite rings, in IEEE Conference on High Voltage Engineering and Application (ICHVE) (2010)Google Scholar
  9. 9.
    J. Lijunl, Z. Yuanbing, P. Ge, Y. Zheng, Z. Xianggong Estimating the size of ferrite rings for suppressing VFTO in GIS, in 8th IEEE Conference on Properties and Applications of Dielectric Materials (2016)Google Scholar
  10. 10.
    Y. Guan, G. Yue, W. Chen, Z. Li, W. Liu, Experimental research on suppressing VFTO in GIS by magnetic rings. IEEE Trans. Power Deliv. 28(4) (2013)Google Scholar
  11. 11.
    N. Pathak, Prof. T.S. Bhatti, Prof. J.M. Ibraheem, Study of very fast transient overvoltages and mitigation techniques of a gas insulated substation, in International Conference on Circuit, Power and Computing Technologies [ICCPCT] (2015)Google Scholar
  12. 12.
    M.A. Haseeb, M.J. Thomas, Disconnector switching induced transient voltage radiated fields in a 1100 kV gas insulated substation. Elsevier J. Electr. Power System Res. 161 (2018)Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.Department of EEEVNR VJIETHyderabadIndia
  2. 2.GVPCEVizagIndia

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