Large ground grid tester and ground resistance value safety potential parameter test
Large ground grid tester, commonly known as large ground grid ground resistance tester or variable frequency anti-interference ground grid ground impedance tester, is a precision instrument specifically used to measure the grounding characteristics of large grounding devices (such as power plants, substation ground grids).
Unlike ordinary hand-cranked or simple digital ground resistance testers, it can solve the problem of accurately measuring large-area, low-resistance ground grids under strong electromagnetic interference environments (such as in operating substations).
