ABOUT THE EFFICIENCY OF THE REACTIVE POWER COMPENSATION IN NETWORKS THAT OPERATE IN NONSYMMETRICAL STATES

Abstract- In a ramified three phase network exist, in general, many kinds of consumers. In the paper it is considered that they can be replaced through two equivalent impedances disposed in parallel, a symmetrical one and a nonsymmetrical one, having a certain low of variation of the loads on the three phases. Regarding the nonsymmetrical receiver, the symmetrical one can have a much less, comparable or greater apparent power. Considering that on the bars of one of the two equivalent receivers there is a capacitors bank connected to improve the power factor, the reactive load can be thus modified in steps. In the hypothesis that the energy is supplied from bars where the voltage is symmetrical through a symmetrical line, it is studied the active and reactive powers ’ flow on symmetrical components between the elements of the circuit, in different energetic situations, how the active and reactive charges can influence the flow of the active and reactive powers on symmetrical components and where, from an economically point of view, it is better to install the capacitors banks, on the bars of the symmetrical receiver, or on the bars of the other one