Distance protections coordination using the exchange of binary signals in the IEC61850 protocol

The paper presents results of tests investigating the subject of distance protection coordination by exchanging binary signals between substations with IEC61850 protocol. The testing stand, testing methods and devices have also been described. For comparison reasons, the results of the same kind of tests where the SDH network has been used to exchange the information have been described. The paper has arisen on the base of tests performed by Institute of Power Engineering of Warsaw University of Technology on behalf of PSE Operator.