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Measurement of Transient Electric Field Emission from a 245 kV Gas Insulated Substation Model during Switching

  • 발행 : 2007.09.01

초록

The transient fields generated during switching operations in a Gas Insulated Substation (GIS) are associated with high frequency components in the order of few tens of MHz. These transient fields leak into the external environment of the gas-insulated equipment and can interfere with the nearby electronics. Measurements of the transient fields are thus required to characterise the interference caused by switching phenomena in such substations. In view of the above, E-field emission measurement during a switching operation has been carried out for a 245 kV GIS model, using a resonant dipole antenna and D-dot sensor. The characteristics of the E-fields i.e., frequency spectra and their levels have been analysed and are reported in the paper. Suitability of the measurements has been confirmed by comparing frequency spectra of the measured and computed transient fields.

키워드

참고문헌

  1. M. Mohana Rao, M. Joy Thomas and B.P. Singh, 'Frequency Characteristics of Very Fast Transient Currents (VFTC) in a 245 kV GIS', IEEE Trans. Power Delivery, vol. 20, no. 4, pp. 2450-2457, Oct 2005 https://doi.org/10.1109/TPWRD.2005.852362
  2. C.M. Wiggins and S.E. Wright, 'Switching Transient Fields in Substations', IEEE Trans. Power Delivery, vol.6, no. 2, pp. 591-600, Apr 1991 https://doi.org/10.1109/61.131116
  3. C.M. Wiggins, D.E. Thomas, F.S. Nickel, T.M. Salas and S.E. Wright, 'Transient Electromagnetic Interference in Substations', IEEE Trans. Power Delivery, vol.9, no.4, pp. 1869-1883, Oct 1994 https://doi.org/10.1109/61.329520
  4. S. Nishiwaki, K. Nojima, S. Tatara, M. Kosakada, N. Tanabe and S. Yanabu, 'Electromagnetic Interference with Electronic Apparatus by Switching Surges in GIS - Cable system', IEEE Trans. Power Delivery, vol.10, no. 2, pp. 739-746, Apr 1995 https://doi.org/10.1109/61.400857
  5. M. Mohana Rao, M. Joy Thomas and B.P. Singh, 'Computation of EMI fields in a high voltage gas insulated substation during switching operations', IEEE Symposium on EMC, Boston, USA, August 2003

피인용 문헌

  1. Electric field sensor for electromagnetic pulse measurement pp.0974-5971, 2019, https://doi.org/10.1080/02564602.2018.1536527