Electric Field Optimization Analysis for Live Opera-Tion of UHV Transmission Line

At present, China's economy is in a period of rapid development, and the pace of urbanization construction is constantly accelerating, followed by the soaring demand for electricity. Especially in densely populated areas where construction land is scarce, it is difficult to balance transmission capacity with the increasing demand for electricity. The problem of insufficient conveying capacity is solved well by the double-return conveying scheme of the same tower and frame. In the process of transmission line operation, it needs to be repaired and maintained, and a considerable part of the work needs to be live. Therefore, this paper studies the surface electric field changes of UHV live line workers, in order to reduce the operating risk of operators, and then make theoretical and practical contributions to ensure the safe and effective implementation of live line work and improve the operation quality and standardization degree. In this paper, SolidWorks modeling software is used to model a 500KV transmission line, and a human body model is placed in the model. The finite element simulation software COMSOL is used to calculate the surface electric field when the personnel are located at the typical position of the line, and its influencing factors are analyzed.