One of the important elements within an electrical system is the electrical substation since it is the sub-system that produces, transforms, regulates and distributes power. Ensuring that this process works properly is key in everything related to the energy industry; this document is an analysis and meticulous study that focuses on comparing the calculation of the reliability of a typical electrical substation, with and without implementing the IEC61850 (GOOSE) standard. The results suggest that when implementing the IEC61850 standard, system reliability is increased by 15%.