On Inductance of Buried Horizontal Bare Conductors

External inductance is one of the basic quantities in the classical approach to the surge and high-frequency analysis of buried horizontal bare conductors. However, there is no consensus, in the modern literature, on the treatment of the effects of the earth surface in the approximate expressions fo...

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Bibliographic Details
Published in:IEEE transactions on electromagnetic compatibility 2011-11, Vol.53 (4), p.1083-1087
Main Authors: Grcev, L., Markovski, B., Grceva, S.
Format: Article
Language:English
Subjects:
Applied sciences
Approximation
Approximation methods
Arcs, sparks, lightning
Circuit modeling
Conductors
Connection and protection apparatus
distributed parameter circuits
Earth
Earth surface
Electric discharges
Electrical engineering. Electrical power engineering
Electromagnetic compatibility
Errors
Exact sciences and technology
Grounding
grounding electrodes
Horizontal
Inductance
Integrated circuit modeling
lightning
Magnetic resonance imaging
Physics
Physics of gases, plasmas and electric discharges
Physics of plasmas and electric discharges
Surges
transmission line modeling
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Summary:External inductance is one of the basic quantities in the classical approach to the surge and high-frequency analysis of buried horizontal bare conductors. However, there is no consensus, in the modern literature, on the treatment of the effects of the earth surface in the approximate expressions for the inductance, and several different formulas are often used. In this paper, we derive a new expression for the external inductance of buried horizontal conductors that accurately takes into account the effects of the earth surface and compare the errors of the usual approximate formulas. We also propose new approximate formulas that lead to smaller errors for depths of burial less than or equal to 1 m.
ISSN:0018-9375
1558-187X
DOI:10.1109/TEMC.2011.2165340