Mitigation of Transmission Line Magnetic Field by Installation of Passive Shield-Loop.

수동루프 설치에 의한 송전선로 자계 저감

  • Published : 2006.02.01

Abstract

In our country most of transmission lines are double-circuit lines. In these lines, the combining method of increasing conductor height and installation of passive shield-loop to mitigate magnetic field near a transmission line, is a good and feasible method. The basic principle of passive shield loop is that the field from the current induced in the shield loop conductors counteracts the field from the phase conductors. This method applied to domestic transmission lines to meet the magnetic field level, 100, 30, 10 and 4 mG, respectively. In each magnetic field level, the minimum conductor height and passive loop height are presented for the implementation of the practical design.

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References

  1. D.I.Lee, K.Y.Shin, J.B.Kim, 'Health Assessment of Electric and Magnetic Fields from Transmission Lines(1)', KEPRI Technical Report, TR. 96EJ29. J 1999. 243, pp.18-32,1999
  2. L. Jonsson.et al, 'Optimized Reduction of the Magnetic Field near Swedish 400 kV Lines by Advanced Control of Shield Wire Currents. Test Results and Economic Evaluation.' IEEE Trans. Power Deliverly, Vol.9, No.2, April 1994 https://doi.org/10.1109/61.296279
  3. R. A. Walling, J. J. Paserba, and C.W. Bums, 'Seriescapacitor compensated shield scheme for enhanced mitigation of transmission line magnetic field', IEEE Trans. Power Delivery, Vol. 8, pp. 461-469, Jan. 1993 https://doi.org/10.1109/61.180369
  4. P. Cruz, C. Izquierdo, and M. Burgos, 'Optimum passive shield for mitigation of power line magnetic field', IEEE Trans. Power Delivery, Vol. 18, pp, No. 4, pp.1357-1362, Oct. 2003 https://doi.org/10.1109/TPWRD.2003.817754