Device and system for simulating ground low-energy discharge defect of transformer winding

The invention provides a transformer winding ground low-energy discharge defect simulation device and system, and belongs to the field of transformer fault simulation. The device comprises a power taking device, a high-impedance transformer, an insulating conduit, a low-energy discharge defect model and a wire, the power taking device is connected with the head end of a low-voltage winding of the high-impedance transformer and is arranged at a preset distance away from the head end of the low-voltage winding; the insulating conduit is fixed on the power taking device; and the low-energy discharge defect model arranged in the insulating conduit is in contact with the power taking device, is led out of the insulating conduit through a lead and is grounded. Through the electricity taking device connected with the head end of the low-voltage winding of the high-impedance transformer and the low-energy discharge defect model, the ground low-energy discharge defect of the winding coil can be simulated on the premis