Influence of the Air Content in Delay Tube on the Operating Characteristics of Hydraulic Electromagnetic Circuit Breakers
During the inspection,it was found that the operation time of some oil damping circuit breakers of the same batch was quite different.Preliminary analysis shows that there is different content of air in oil cup during the assembly and sealing process of delay tube,resulting in different damping force on iron core.Through the establishment of fluid dynamics model,the damping force data of different air content are simulated and calculated,and the dynamic simulation is carried out in ADAMS.The results show that with the different air content,the size of damping force will change,and then affect the action time of circuit breaker.
万方数据
维普
