Systems and methods for dynamically defending a site from lightning strikes are provided. The systems and methods involve dynamically altering electrostatic fields above the site and/or dynamically intervening in lightning.

The present invention relates to an arrester, comprising: a rod member coupled to a ground means at one end in the longitudinal direction and charged with charges of the ground; a plurality of insulators provided to be spaced from each other in the longitudinal direction of the rod member; an charging plates provided between the neighboring insulators separately from the rod member so as to be electrically insulated and charged with a polarity opposite to that of the charges of the ground; a charging tube provided between the charging plates and the insulators, electrically connected to the charging plates, and charged with charges having a polarity opposite to that of the charges of the ground; a needle electrode member provided to the upper end of the rod member and having a needle-shaped part; and a discharge induction conductor electrode electrically connected to the charging plates between the insulators and the charging plates so as to induce discharge between the needle electrode member and the discharge induction conductor electrode and emit ion charges through the discharge, thereby forming a discharge path between a thundercloud and the needle electrode.

The lightning induction device includes a projection rod, an intermediate conductor, a lowermost conductor, and a switch unit. The projection rod, the N intermediate conductors, and the grounded lowermost conductor are coupled in an upward direction via the N+1 switch units, and all of the switch units are turned on, so that the projection rod and all of the intermediate conductors are instantaneously grounded.

The present disclosure relates to a shielding device against atmospheric discharges. The device comprises a first conductive element and a second conductive element that passes through the first conductive element, wherein both conductive elements are electrically insulated by means of a first insulating body, and a second insulating body that are connected to the ends of the first conductive element and the second conductive element. Additionally, the device comprises a third conductive element that passes through the second conductive element that is connected to a fourth conductive element. The fourth conductive element is connected to one of the ends of the first and second conductive elements, and the shape of the fourth conductive element prevents the generation of a corona effect in the presence of an electric discharge. In addition, the third conductive element allows the lightning shielding device to be connected to a grounding element, thus concentrating the electric discharge only in the lightning shielding device, acting as an electric capacitor, and producing the flow of electric charge towards the grounding element, preventing the discharge from spreading to structures or people around.