The gate of a unit in the community often jumps, how should it be repaired?

First of all, we must determine the reasons for the total trip: First, the number of total trip protection actions has passed, or the protection setting value is insufficient, so we can replace the total trip or reset the protection setting value. Second, there is a phenomenon of virtual connection of lines in the loaded unit, which shows that after the loaded operation in general time, some lines are temporarily short-circuited due to insulation aging, temperature rise and insulation failure, indicating the general protection action. The measures that can be taken are: actively check all lines, or move back and turn up the general explanation, so that the fault point can not be protected by the general explanation after short circuit, thus becoming a permanent fault point, and then find out the fault point. 3. When the user load in the load cell suddenly increases, check the total user load.