Analysis and research on capacitor breakdown faults in metro trains
The trains operating on Xiamen metro line 1 have encountered various capacitor breakdown failures,posing significant risks to both normal traction operations of the trains and potentially resulting in the overheating and exploding of capacitors within traction boxes,leading to fire hazards and seriously impacting the safety of train operations.This article conducts an in-depth analysis of the capacitive breakdown failures experienced on Xiamen metro line 1,investigating and testing various factors that may contribute to the breakdown of three-phase AC filter capacitors.Meanwhile,according to the various causes of failures,a complete set of capacitive design optimizations,capacitor fault predictions,preventive maintenance and quality controls,and other comprehensive improvement programs are established.Following a thorough evaluation,the optimization program demonstrates notable effectiveness in enhancing the reliability of capacitors while also improving the convenience of capacitor maintenance.This research holds significant reference value for the design and selection,fault analysis,technical transformation,and preventive maintenance of train filter capacitors in metro operating units.
万方数据
维普
