Electric field and right-of-way analysis of Kuwait high-voltage transmission systems

This paper presents an intensive analysis of the electric field resulting f rom the realistic high voltage ac systems existing in Kuwait. Two HV ac sys tems are modeled and analyzed. One is a 3-phase, double circuit, bundle con ductor operating at 300 kV and the other system with an operating voltage o f 132 kV. The electric field is calculated at the ground level to standardi ze the right-of-way (R.O.W) limits for those systems according to the maxim um allowable electric held strength at the edge of R.O.W imposed by the sta ff regulatory. The analysis of two 3-phase, 300 kV, double circuit, bundle conductors transmission lines adjacent to each other and running in paralle l is also conducted. The effect of the spacing between the two lines on the maximum gradient at ground level is evaluated to set values to the R.O.W l imits for this realistic system. Graphs are presented for a simple evaluati on of the R.O.W for any value of the maximum allowable electric field at th e ground level. The charge simulation method (CSM), with complex charges an d complex boundary conditions, is used to model the above mentioned systems with a great accuracy. (C) 1999 Elsevier Science S.A. All rights reserved.