Power Supply System for Line Transformer Unit Wiring Without Breakers Applied to Bus Outage
GIS bus faults result in a power outage for the entire station,which cannot be quickly repaired.Prolonged power outages will bring serious economic and social problems to society.How to ensure that repairs are necessary and ensure normal power supply for users is an urgent problem that the power grid operation and maintenance department needs to solve.This paper proposes a method to achieve GIS substation busbar power outage maintenance without affecting the operation of other equipment.This method utilizes the high voltage bushing of the main transformer and the tripping of the primary equipment of the line.At this time,there is no circuit breaker in the middle of the line transformer group,and a new wiring method is constructed.At the same time,a new type of secondary system for this method has been proposed for the first time,and this method has been implemented in multiple substations with significant results.
line transformer unit without breakerGISdevice jump through
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