Method and system for detecting and digitally transmitting analog output measured quantities of a number of transducers

摘要

Method and arrangement for sensing and digitally transmitting analog output measurement variables of a plurality of transformers;The invention relates to a method and an arrangement for sensing and digitally transmitting analog output measurement variables of a plurality of transformers to a protective unit or panel unit in which digital measurement variables corresponding to the output measurement variables are transmitted to a data concentrator in which a telegram is formed with the digital measurement variables and a predetermined minimum sampling rate.;So that analog output measurement variables of transformers can be acquired, collected and transmitted to protective units or panel units at high speed and in synchronism with one another, the analog output measurement variables are converted into the digital measurement variables (Md) and transmitted with a sampling rate which is higher than the minimum sampling rate by a factor (m). Data is transferred, with the clock of a clock generator of the data concentrator (26), from buffers (Buf1) assigned to each transformer (ECT1 . . EVTBB) in the data concentrator (26) into buffers (Buf2) assigned upstream of the FIR filters (FIR). The telegram is composed, by means of a multiplexer (27), from output buffers (Buf3) assigned downstream of the FIR filters (FIR).