| 摘要 |
The invention relates to a method for determining an input voltage of a transformer of a local network station (2), having the following steps: - measuring of an input current (I os ) of the transformer, an output current (I us ) of the transformer, an output voltage (U ?s ) of the transformer, and a phase angle between the output current (I us ) and output voltage (U us ); - determining the translation ratio (ü) and an admittance (Y) of a cross-member of a p-equivalent circuit diagram of the transformer of the local network station (2) using the measured input current (I os ), the measured output current (I us ), the measured output voltage (U u s) and the phase angle between the output current (I us ) and the output voltage (U us ); and - determining the input voltage (U Os ) of the transformer of the local network station (2) based on the determined translation ratio (ü) and the determined admittance (Y) of the cross-member of the p-equivalent circuit diagram. |
