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.
关键词
绝缘拉杆/加工缺陷/力学仿真
Key words
the insulated tension pole/the machining defects/mechanical simulation
维普
万方数据