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The increase in companies and the incessant productive growth of the different economic sectors have increased programs that contribute to the sustainable consumption of electrical energy, all in order to foster a culture of savings. The use of standardized and calibrated tools is essential, with a constant monitoring of the various electrical parameters of the industry can be done. The prototype has a STM32F7 as a microcontroller system for digital signal processing in real time, as well as the choice of voltage and current sensors for its correct functionality. The prototype can rival with commercials meters since its range error in tests is minimal, being thus an error of 4.73, 8.82 and 3.08 % in active power of 2.05, 0.97 and 1.79% in apparent power and 7.69, 5.85 and 14.29% in reactive power. With the results obtained, we conclude that the prototype is applicable, this being a viable and economical option for an energy audit, limited only by the number of prototypes that can be created for a possible solution for its application.

Validación de un Prototipo de Medidor de Energía Trifásico como Apoyo para una Auditoría Energética