Oil-filled electrical equipment state analysis apparatus and oil-filled electrical equipment state analysis method

摘要

Provided is an apparatus for analyzing the state of oil-filled electrical devices. The apparatus simulates the state of an oil-filled electrical device (1) in which copper wire wrapped in insulating paper is immersed in insulating oil (55). The apparatus for analyzing the state of oil-filled electrical devices includes a first paper-covered copper wire (5A) and a second paper-covered copper wire (5B), which are adjacent to each other; a tank (3) which holds the first and second paper-covered copper wires (5A, 5B) as well as insulating oil (55) extracted from the oil-filled electrical device (1), thereby immersing the first and second paper-covered copper wires (5A, 5B) in the insulating oil (55); and a capacitance measurement unit (8) which measures the capacitance between the first and second paper-covered copper wires (5A, 5B). The first and second paper-covered copper wires (5A, 5B) includes copper wire and insulating paper wrapped therearound. The insulating paper wrapper around each copper wire includes the same material as the insulating paper in the oil-filled electrical device (1).