Device for testing insulating characteristic of oilpaper

The invention relates to a device for testing an insulating characteristic of oilpaper. The device comprises an oil storage barrel, a cover and a box body; wherein the oil storage barrel, the cover and the box body are successively arranged. The box body is provided with a fixing member, a detachable electrode which is vertical with the fixing member and an adjusting member; wherein the fixing member, the detachable electrode and the adjusting member are arranged from inside to outside. The device well simulates a plurality of insulation faults which may occur in actual operation of a transformer, The device can be directly applied for guiding construction of an ultra-high-voltage power transmission system.