Induced voltage suppression device and system for power transmission line

The utility model discloses a power transmission line induced voltage suppression device and system, the power transmission line induced voltage suppression device comprises an induced voltage suppression module and an on-off control module which are arranged in a shell, the shell is provided with a wiring terminal, the wiring terminal comprises a first connecting part and a second connecting part, and the first connecting part is connected with the second connecting part. The first connecting part and the second connecting part are detachably connected, the high-voltage test wire is used for being connected with a tested circuit, and the end part of the high-voltage test wire is clamped in a gap between the first connecting part and the second connecting part. The input end of the induced voltage suppression module and the input end of the on-off control module are electrically connected with the high-voltage test wire through a second connecting part, and the output end of the induced voltage suppression mo