A Research Concerning a Distributed Automation Scheme for 10kV Aerial Wire with Grounding Protection

Abstract

This paper puts forward a distributed automation scheme with grounding protection for 10kV aerial wire, which is based on the outgoing line and feeder circuit breaker in substation, the intelligent column circuit breaker and the intelligent load switch. Though the outgoing line and feeder circuit breaker in substation, the intelligent column circuit breaker and the load switch cooperating with each other, Which could isolate and exclude the aerial wire transient fault automatically, and isolate the permanent fault immediately. Practical application results show that the application of the scheme have reduced the hours of power failure, reduced maintenance time and improved the stability of the system.