Measures to Solve the High Abnormal Rate of Disconnector Test Values

Disconnector is one of the most used high-voltage switchgear in substation, and its operation status directly affects the safety of maintenance personnel and the stable operation of the substation. Therefore, it is necessary to regularly test the disconnector. In recent years, the abnormal rate of disconnector test values is high, which includes a large number of errors, and it results in repeated maintenance and wastes of manpower and material resources. This study analyzes the parts with multiple abnormal rates during the test, determines the main reason for the high abnormal rate, and develops a degree-of-freedom manipulator equipped with high-density superimposed sawtooth. Through the actual application investigation, it is determined that the manipulator can effectively reduce the abnormal rate of the disconnector test value, which indicates that this equipment meets the design purpose and has practical application value.