Research on Key Indexes and Testing Method of IEC61850 Test Equipment for Relay Protection

IEC61850 test equipment for relay protection is widely used in intelligent substation. Three key indexes of the tester are proposed, the numerical computation ability, the data outputs synchronization, and the precision of time for measurement and control. Technology indexes and testing method of the tester are set in this paper. The mainstream testers are tested and the results indicate that the rationality of key indexes and the applicability of testing method, that lays the theoretical and practical foundations for the technology standard of relay protection tester of intelligent substation.