METHOD FOR SYNCHRONIZED CAPTURE OF MEASUREMENT DATA REQUIRED FOR CONTROLLING DIFFERENTIAL PROTECTION DEVICES OF ELECTRICAL POWER LINES

摘要

it is a method for synchronized recording of control differentialschutzeinrichtungen electric power (1) required measurement data is described, which summed up to packets by packet switched networks (7) between two network elements (2, 3) to be transmitted, the on the basis of the measured and watches broadcasting and reception hours (ts1, ts2, te1,te2) between the network elements (2, 3) over the packet switched network (7) are carried synchronisiernachrichten synchronized.in order to ensure the synchronisierbedingungen, it is proposed that the transmission and reception hours (ts1, ts2, te1, te2) consecutive synchronisiernachrichten there u0394ts, u0394te), on the one hand, between the time (ts1, ts2) and on the other hand, between the empfangszeit en (te1, te2) and from the transmitter and empfangszeitspannen u0394ts,u0394te) and the difference (u0394t) were determined, and the synchronization of the clocks only those synchronisiernachrichten are used in which the absolute value of the difference (u0394t) between the transmitter and empfangszeitspannen u0394ts, u0394te) under a predetermined threshold (s).