“…In addition, some industries integrate vibration sensors in order to analyze and predict possible equipment malfunctions, which increase their energy consumption. From these sensors is possible monitoring the phase-phase voltage, phase to neutral voltage, phase current, frequency, active power, reactive power, apparent power, active energy, reactive energy, power factor, instantaneous demand amps, instantaneous demand active power, instantaneous demand apparent power, maximum demand active power and maximum demand apparent power [120,121].…”