In this paper

using ATP-Draw transient simulation software

basing on the accident

establishes the model

simulates and analyzes one point earthing and multipoint earthing of the equipotential bonding copper cable in Qujiang 500 kV Substation

and verifies the simulation results through experiments.The disadvantage of the earthing way of the cable has been analysis.The method of multipoint earthing of the equipotential bonding copper cable is presented.