FIELD: physics, communication.
SUBSTANCE: invention relates to data transmission in electric power systems and is intended for using packet switched communication to transmit time division multiplex data to a remote line differential protection relay. The invention discloses a method of transmitting data (28a), which comprises steps of: receiving measurement data (28a) in a first communication module (22a); time stamping the measurement data (28a) in the first module with a time tag (34); transmitting the measurement data (28a) to a second communication module (22b) via a packet switched data network (24); and outputting the transmitted measurement data (30a) after a predefined delay time (ΔtD) after the time stamping of the measurement data (28a).
EFFECT: high transmission efficiency.
13 cl, 4 dwg
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