Analysis of the Cause of Breakage Fault in a 220 kV Transmission Line Conductor
A breakage fault occurred in the conductor of a 220 kV transmission line during operation,which seriously affected the safety and stability of the power grid.In this paper,the tensile strength and e-longation rate indicators of the 220 kV transmission line conductor are analyzed through visual inspection and mechanical performance test,and X-ray flaw detection is conducted.Based on the above results,the cause of the wire breakage is identified.In response to the problems exposed by this fault,preventive ideas and countermeasures are proposed to ensure the safe and stable operation of the power grid.