Abstract: The reverse gate operation is one of the most common and heavy and difficult work of the substation, the correct operation of the reverse gate plays a vital role in the safe and stable operation of the power grid, and the smooth operation of the reverse gate will also have the length of time, I have based on many years of practical work experience in the substation, for the 110Kv substation The reasons for the long operation time of the reverse gate were briefly analyzed and discussed, and the reasons for the long operation time of the reverse gate were found out and the corresponding measures. For the reference of relevant substation operation and maintenance personnel.