The objective of this work is to develop the process about automation of an electrical substation using the IEC 61850 communication standard, as well as modern tools and communication equipment for an effective and reliable integration of the different devices into the system. The question is: how to automate an electrical substation? The answer is technology, now thanks to the evolution on the integrated systems (relays based on microprocessors) as well as the digitized systems and data networks, the control systems of the substations have achieved substantial improvements with respect to traditional equipment. To automate an electrical substation, a series of steps must be followed. First, the development and engineering of the communication architecture, define equipment, specify the way how they will be connected and the type of cable to be used. Once all the relays (protection and m...