| 摘要 |
The invention relates to a method for producing a frequency measurement value that indicates a frequency of an electrical network quantity, which frequency is present at a measurement point (11) in a power supply network, wherein a signal that characterizes the network quantity is sampled by means of a measuring apparatus (14) and the frequency measurement value is determined from the sample values. In order to further develop such a method in such a way that a frequency measurement value that is as exact as possible can be produced with comparatively little measurement complexity, the phase angle between two consecutive sample values of the network quantity is determined according to the invention and the frequency measurement value is calculated on the basis of the determined phase angle. The invention further relates to a correspondingly designed measuring device (12). |
