Grounding current monitoring device for transformer iron core and clamp

The utility model discloses a grounding current monitoring device for a transformer iron core and a clamping piece. Wherein the straight-through current transmitter I (1) is used for picking up a grounding current signal of a clamping piece of the transformer, the straight-through current transmitter II (2) is used for picking up a grounding current signal of an iron core of the transformer, and the data processing device is arranged to be connected with the straight-through current transmitter I (1) and the straight-through current transmitter II (2). A straight-through current transmitter I (1) is used; a grounding current signal of a clamping piece of the transformer is picked up; grounding current signals of an iron core of the transformer are picked up through the straight-through current transmitter II (2), signal analysis and calculation are carried out through the data processing device, grounding current monitoring is not carried out on the iron core and a clamping piece through two sets of systems a