Analysis of Fracture Reasons of Insulated Tension Pole of LW33A-126 Circuit Breaker
The author analysize insulated tension pole of LW33A-126 circuit breaker of the 110 kV transformer Substation,by measuring the macro inspection,chemical composition,fracture morphology,fracture energy spectrum analysis and mechanical simulation of the metal connecting part of insulated tension pole and the cylinder pulling of the circuit breaker.due to the machining defects of the insulated tension pole,it cause the mechanical insufficien tsafety margin of the insulated tension pole,and leads to the fracture fault.In order to avoid the occurrence of similar faults,the inspection of parts in the supervision of important equipment such as circuit breakers should be strengthened,it will prevent unqualified equipment from using in the power grid.
the insulated tension polethe machining defectsmechanical simulation
万方数据
维普
