Aspects Regarding the Loads Patterns Determination from the Internal Services of the Power Substations

Abstract

The paper presents a possibility of monitoring the operating regimes for the different electrical loads by the analysis of the harmonic components extracted from alternating currents and also by establishing the phase shift between the voltage and current waveforms. With this method is determined the electrical load character (inductive, capacitive, resistive, resistive – inductive), and is established the electric pattern of the loads from the electrical network analyzed.