Ground grid grounding impedance measuring device and use method thereof

The invention relates to the technical field of electric power engineering, and discloses an earth screen grounding impedance measuring device and a use method thereof, and the earth screen grounding impedance measuring device comprises a host, a distance measuring instrument, an angle adjusting assembly, an angle detection member, a calculation module and a display module. The host is used for measuring the grounding impedance of a to-be-measured ground screen, and the distance measuring instrument is arranged on the host in a rotation angle adjustable manner. The angle adjusting assembly is used for adjusting the rotation angle of the distance measuring instrument. The angle detecting piece is used for detecting the rotation angle of the distance measuring instrument. The calculation module can calculate the vertical distance between the position of the distance measuring instrument and the target position, and the display module is used for displaying the vertical distance. The earth screen grounding imped