Analysis of the electrical variables through recorded data in the network analyzer, among them: steady-state voltage in magnitude and frequency, voltage events, currents, imbalances, reactive power, power factor, harmonic distortion of voltage and current, flickers. According to the customer’s request, either to find the root of a problem in the installation, to avoid penalties of the network operator, or to normalize the facility power quality, the analysis of the different electrical variables is made having in mind the regulations and reference standards, to finally generate the pertinent recommendations.