Method of selection of parameters reactive power compensation in traction ac networks

The authors show a program for calculation of normal and resonant modes with a procedure of calculation of a network with nonlinear load on the example of traction substation, which allows, on the basis of the analysis of frequency characteristics of the input resistance Z вх = f(v), to appreciate the range of currents and voltages in the network elements, and to assess the levels of active losses and overloads of compensating devices with currents of higher harmonics.