According to the application situation of distribution automation

this paper combs the application characteristics of several typical feeder automation modes

and combining with the present situation of Hunan power grid

puts forward the practical technical route of distribution automation of "main feeder automation and branch line relay protection"

the principle of configuration technology is established

and the practical application is carried out. The typical application cases show that the technical scheme can effectively support the objectives of "two reduction and one control"

that is

to reduce the power cut of 10 kV whole line

to reduce the power cut of distribution station and to control the time of distribution transformer outage. Finally

in view of the problems existing in the practical practice

the paper puts forward some suggestions for the next stage.