Simulation Analysis of Crimping Defects and Temperature Distribution of Multi-physics Coupling Single-core Cable Joints
In order to study the effect of contact resistance-induced crimping defects on temperature distribution of cable joints,three-dimensional multi-physics coupling simulation on the joint of a 110 kV cable was carried out using the finite element software COMSOL,and the equivalent contact resistance model was established based on the equivalent conduc-tivity.The influences of ambient temperature,load current,and crimping defect severity on the temperature of the cable joint were analyzed,and the quantitative relationships between the joint core temperature and each aforementioned factor were obtained by multivariate function fitting.The simulation was expected to provide useful information for joint core temperature calculation of cables encountering crimping defects.
cable jointcrimping defectfinite element simulationmultiple physical fieldsfunction fitting
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