An automatic test platform for the test problems of digital protection in a smart substation is proposed. The hierarchical structure and modularization is adopted for the platform to realize highly efficient closed-loop automatic test. With an open structure

a secondary development system for protection device test template and test scheme is provided

which can cope with different kinds of protection device and facilitate the expansion of the test system. When the test is completed

the system can automatically form the standard format of the test report. With the automatic test platform

the efficiency of relay protection testing work can significantly be improved in eventually realizing normalized

standard

and highly efficient automatic test.