With the increasing adoption of the communication structure referenced in the IEC 61850 standard, the protection and the control of electrical systems use the horizontal exchange of information between intelligent devices (IEDs); for this purpose GOOSE (Generic Object Oriented Substation Event) protocol is used. It considerably reduces the need for electrical interconnection among IEDs in order to share information. As the previous electrical interconnection was described in detail in

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... diagrams, it was possible, by consulting these diagrams, usually available in printed form, to track the entire path for the electrical signal for corrective maintenance. GOOSE communication configuration is expressed in IEC 61850 files in the XML (eXtensible Markup Language) format. Although IED configuration files are standardized by IEC 61850, their information is not easily understood by the human reader, because they were designed to be imported by a software. This research proposes a methodology for GOOSE messages documentation, based in the information available in the IEDs configuration files, aiming to make them friendly for the operators and mainteners of the substations. The information is present in Autocad DWG format, which is currently used in the substation projects. The final format of this documentation is integrated in usual project, such as .DWG files.