When lightning strikes the substation grounding grid, there will be a great transient ground potential difference between the two grounding points of the shielded cable with two terminal grounding. It will be coupled to the cable core line and affects the normal operation of second order system devices and even jeopardize the safe operation of the whole system. Therefore, it is of great significance to study the lightning characteristics of the relevant components when lightning strikes the grounding grid of smart substations. This paper mainly...
