The CIM profile CGMES is a quite complex profile, where not all is available within each software. Therefore it could happen that some data within the CGMES models are slightly wrong or incomplete. Depending on the use case this mostly does not have a direct impact on load flow calculations, but will be improved after the PowerFactory export.

Furthermore, CGMES includes a huge number of mandatory and optional parameters. Dependent on the tool used for the export, these parameters might be exported or not. However, some of these optional parameters, like the length of a line, are mandatory in PowerFactory. Therefore these parameters will be set so that the default value defined by CGMES is used or at least the electrical behavior is not changed. In some cases these newly set parameters could be exported by PowerFactory and lead to changes in the CGMES model. However, this should not impact the electrical behavior of the model.