Research of relay protection automatic testing technology for smart substation

This paper points out the problems of digital relay protection tester and the new requirements of relay protection testing in smart substation, combining the key technology of automation relay protection tester and takinG full advantage of the IEC 61850 standard, such as the unified protocol, the configurable model file, the specification of State Grid's “Six Reunification” as well. In this paper, the existing relay protection tester is improved, and an automation relay protection tester automation relay protection tester with the function of automatic test is developed, and the tester can debug protection devices quickly, generate test results automaticly.