Abstract: A method for maintaining a first electrical component includes the following: Temperature measurement values recorded at the first electrical component are stored as a first set of measurement data, and temperature measurement values recorded at least at one second and one third electrical component are stored as second and third sets of measurement data. Taking into account the three sets of measurement data, a verification is carried out to determine whether a maintenance operation is necessary at the first component. There is also described a data-processing system for carrying out the method.

Abstract: A method for monitoring an electrical device connected to an electrical transmission network includes providing measured operating state data of a first electrical device, providing measured operating state data of further electrical devices of the same type as the first electrical device being connected to the transmission network, comparing the operating state data or at least one variable derived therefrom with at least one predetermined data pattern, the operating state data of the first and all further electrical devices being included in the comparison, and providing information about control measures and/or maintenance measures that are to be carried out and are assigned to the data pattern, if the result of the comparison is a match with the data pattern. A data processing device for performing the method is also provided.

Abstract: A device for grounding electrical components arranged in a chain has a grounding point at ground potential and an actuation device connected to the grounding point for connecting the electrical components to the grounding point. In order to provide such a device, with which a simple, safe, and durable grounding is obtained, the actuation device is constructed as a moving part extending in a longitudinal direction and movable in a longitudinal direction. The moving part has an electrically conducting grounding section connected to the grounding point and an electrically nonconducting insulating section arranged on the end of the moving part facing away from the grounding point.

Abstract: A device for grounding electrical components arranged in a chain has a grounding point at ground potential and an actuation device connected to the grounding point for connecting the electrical components to the grounding point. In order to provide such a device, with which a simple, safe, and durable grounding is obtained, the actuation device is constructed as a moving part extending in a longitudinal direction and movable in a longitudinal direction. The moving part has an electrically conducting grounding section connected to the grounding point and an electrically nonconducting insulating section arranged on the end of the moving part facing away from the grounding point.