Strength Analysis of DW450-1600 Operating Mechanism at the 65 kA Short Time Withstand Current
Based on UG dynamics simulation,the simulation model of low-voltage circuit breaker is built.Then,based on Maxwell electromagnetic field simulation,the simulation model of the contact which under the closing state is built to calculate the electric repulsion force of the contact which under the 65 kA short-time withstand current.Then,the electric repulsion force data obtained by Maxwell electromagnetic field simulation is coupled to the UG dynamic simulation to calculate the stress of the DW450-1600 operating mechanism which under the 65 kA short-time withstand current.Finally,based on the UG finite element simulation,the simulation model of the DW450-1600 operating mechanism is built,and the UG calculated results is coupled to the UG for the strength analysis of the operating mechanism parts.The results show that the stress of the DW450-1600 operating mechanism which under the action of electric repulsion force of the 65 kA short-time withstand current has a significant impact.
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