Isolation static contact and three-station isolation grounding switch

The invention relates to an isolation static contact and a three-station isolation grounding switch. The isolation static contact comprises a front vertical seat and a rear vertical seat which are arranged at an interval along the front-back direction, the opposite inner side walls of the two vertical seats are respectively provided with a conductive contact finger, the conductive contact fingers are used for being in conductive contact with the moving contact, the right ends of the two vertical seats are insertion ends for the moving contact to be inserted, the two vertical seats are respectively provided with an arc striking sheet at the insertion ends, and the arc striking sheets are used for being in conductive contact with the moving contact. The arc striking sheet is provided with an arc-shaped section which is bent leftwards or rightwards; and the arc-shaped section is used for being in contact with the moving contact to realize arc striking. In the bus conversion operation process, before the conducti