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http://dx.doi.org/10.5207/JIEIE.2009.23.5.110

Calculation of Magnetic Fields under 3 Phase Power Lines with Branch Lines  

Kang, Dae-Ho (부경대학교 전기제어공학부)
Lee, Yong-Sik (부경대학교 대학원 전기공학과)
Kim, Bu-Gyu (부경대학교 대학원 전기공학과)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.23, no.5, 2009 , pp. 110-119 More about this Journal
Abstract
In this study magnetic fields near electric power lines with branch lines which have a arbitrary angle were derived and formulated by dipole antenna theory and could be calculated easily using the formula. It seems that those formula could be applicable to the consideration of magnetic fields during the design of distribution lines with branch lines. As an example those formulated equations on elements of magnetic fields were applied to a model of 3 phase distribution lines with branch lines and calculated by Matlab programs and the results were presented The analyzed results are follows. The resultant magnetic field is dominated by the componant By all over y-axis in the case of the smaller branched angle $\alpha$ and the lower observed point z. In case of ${\alpha}=\frac{\pi}{2}$[rad], the resultant field is affected by the componant Bx. The resultant field is dominated by the componant Bz at the vicinity of the power lines and it shows very large value at the branch line position of y-axis in case of ${\alpha}>\frac{\pi}{2}$.
Keywords
Magnetic Fields; Electric Power Lines; Dipole Antenna Theory; Branch Lines;
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Times Cited By KSCI : 1  (Citation Analysis)
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