Analysis and Protection of Lightning Damage in Pumped Storage Power Station Hillside Cable

Aiming at the situation that the cable trench of the pumped storage power station is easy to be struck by lightning, using ATP-EMTP electromagnetic simulation software, established high-voltage cable and secondary cable distributed parameter model, focus on the analysis of lightning strikes the high-voltage cables in the cable trenches, the electromagnetic coupling between the high-voltage cable core and the secondary cable shield; At the same time, analyzed the influence of different grounding modes of secondary cable on electromagnetic coupling. Finally, for the influence of the additional current on the shield, propose a reasonable distance between the lightning rod and the cable trench.