With the development of power grid,higher requirements are put forward for the automatic control of substation.In or-der to improve the efficiency of on-site inspection of anti-error lock-out in substation,an automatic on-site inspection system for anti-error lock-out of primary and secondary equipment is designed according to the actual situation of substation.The results show that under the condition of the proposed method,the actual frame number is 1 455 and the frame drop rate is 3％.The total time from issu-ing instruction to executing operation is 55 ms～140 ms,and the control error and absolute error are not more than 3％.The imple-mentation efficiency of the proposed method gradually increased with the increase of the test sample,and the implementation efficiency was the highest,with an average of 99.2％,and the improved method and the traditional method were 98.6％and 97.1％,respec-tively.The system improves the reliability of the anti-error lock device,reduces the workload of on-site manual inspection,avoids the error caused by human factors,and improves the detection efficiency and reliability of the anti-error lock of the substation's prima-ry and secondary equipment.
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