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Measurement of magnetic fields in the direct proximity of power line conductors

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2 Author(s)
Mamishev, A.V. ; Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA ; Russell, B.D.

Modeling and managing of power frequency magnetic fields requires verification of theory with actual measurements. Measurements only at ground level are not always sufficient for comprehensive studies. The technique and the results of three-dimensional mapping of the power frequency magnetic fields high above ground level are presented in this paper. Comparative calculations illustrate relevance and approximations of the existing theoretical approach to field modeling. The influence of harmonics on the elliptical rotation of the magnetic field vector is illustrated. The possibility of use of the magnetic fields for the power line proximity detection is discussed

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Power Delivery, IEEE Transactions on  (Volume:10 ,  Issue: 3 )