Results of modern pilot schemes tests for general electric line protection devices

The paper presents some results of modern pilot schemes tests and the testing methods description. Distance protection coordination functions have been tested for GE Multilin UR-series devices. Every type of available pilot scheme has been checked in synthetic test and during the real coordination between D60 and D90Plus devices. For POTT scheme, coordination between two L90 protections has been realized through the different communication link types, for comparison reasons.