A GENERALISEDMETHODOLOGYFOR EVALUATINGVOLTAGE

VxlVi - negative sequence voltage vector at busbar x which propagates from busbar i Objectives ofthis paper are to carry out preliminary studies in order to investigate the dependency of various load types/bases on influence coefficients, and eventually to develop a methodology for the evaluation of influence coefficients for interconnected network environments, an aspect that is not been covered in IEC/TR 61000-3 -13. Consider the radial MV-LV system shown in Figure 1 where the voltages at the sending end busbar (labelled 'send') of the line is taken as unbalanced. Purpose is to assess the voltage unbalance that propagates from the sending end busbar (V-:send) to the receiving end busbar (labeled 'rec') of the MY sub-system or the influence coefficient ksend-rec between busbars sendand rec. For this, the loads and the MV line (t) are considered as balanced.