Polytechnic and design, Vol. 3 No. 3, 2015.
Original scientific paper
https://doi.org/10.19279/TVZ.PD.2015-3-3-01
CABLE SEGMENTS IMPEDANCE IN ELECTROMAGNETIC MODEL
Zdenko Balaž
; Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, Split, Croatia
Abstract
The paper presents a part that deals with the issues analysed in the accepted and the assessed doctoral dissertation written by this author
entitled “Electromagnetic Model for Computation of Ground Fault Current Distribution”. Originally developed model is more advanced than all analytical and numerical research models that so far have been developed in this area and available to the author. Electromagnetic model calculations in which it was applied introduced a complete coupling between all components of large power systems. The complete electromagnetic coupling includes in the calculations as follows: inductive, capacitive and conductive coupling. The development model was based on the hybrid and numerical model. The combinations of Nodal analysis, transmission line model and finite element technique are applied. This paper analyses the cable lines as one of the components of every large power system. The distribution of the scalar electric potential for segments of buried cable lines is calculated in the same way as for segments of bare conductors. The allocation of resources in the nearby means is affected by cross–currents of all segments of the cable guide. Cable segments are modelled by transverse and longitudinal impedances. Own and mutual impedance of single –and three–wire cable in a homogeneous unlimited resources are analysed.
Keywords
electromagnetic; model; conductive; coupling; longitudinal; transverse; own and mutual impedance of the cable
Hrčak ID:
192316
URI
Publication date:
16.11.2015.
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