System and method for the data transmission of digital transmission data

摘要

The invention relates to a system for the data transmission of digital transmission data ( 17, 18 ) between a first digital protective device ( 1 ) and a second digital protective device ( 9 ) on a section (A) of an energy supply line ( 2 ) in a transmission direction ( 15 ) and in a reception direction ( 16 ). The first digital protective device ( 1 ) is connected to an end ( 6 ) of an electrical data transmission line ( 7 ) via a first coupling device ( 5 ). The second digital protective device ( 9 ) is connected to the other end ( 12 ) of the electrical data transmission line ( 7 ) via a second coupling device ( 11 ). In order to establish data transmission with little complication, the data transmission line ( 7 ) is one-paired, and both coupling devices ( 5, 11 ) are adapted to enable transmission of digital transmission data in the transmission and reception direction ( 15 or 16 ) on the one-paired data transmission line ( 7 ) in the manner of a digital telecommunication transmission. The invention further relates to a method for transmitting data.