Simulation of body electric field distribution and equipotential entry path of live working
Live working is a common method for on-line maintenance and testing of high-voltage electrical equipment.Different operation modes need to be considered for different tower types.For a typical 500 kV transmission line,the existence of lightning arrester changes the gap structure,so analyzing the surface electric field of operators in this case is of great significance for selecting live working methods and ensuring the safety of operators.Taking a 500 kV transmission line with lightning arrester as an example,this paper selects a typical tower gap structure to establish the corresponding finite element calculation model,analyzes the influencing factors of live working safety distance and space electric field,calculates the electric field intensity of operators in different positions of towers under different live working modes,and gives the relative safe path to enter the equal potential,which provides technical reference for intelligent monitoring and risk early warning of live working of transmission lines.
live workinghuman electric fieldfinite element calculationrisk early warning
NETL
NSTL
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