High-stability relay protection device test fixture and test method thereof

The invention discloses a high-stability relay protection device test fixture and a test method thereof, and relates to the technical field of test fixtures. The positioning device comprises a positioning middle section matching and adjusting positioning structure and a bottom end multi-direction matching and moving clamping structure, wherein the top end of the positioning middle section matching and adjusting positioning structure is fixedly connected with the bottom end multi-direction matching and moving clamping structure. According to the invention, through the cooperative design of the positioning middle section matching positioning structure and the bottom end multidirectional matching clamping structure, the device can conveniently complete the multi-section matching convenient clamping of the relay protection device needing to be detected, the stability of the multi-section clamping is greatly improved, and through the design of the bottom end multidirectional matching clamping structure, the detect