Apparatus and method for analyzing the state of oil-filled electrical devices

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 in which copper wire wrapped in insulating paper is immersed in insulating oil. The apparatus for analyzing the state of oil-filled electrical devices includes a first paper-covered copper wire and a second paper-covered copper wire, which are adjacent to each other; a tank which holds the first and second paper-covered copper wires as well as insulating oil extracted from the oil-filled electrical device, thereby immersing the first and second paper-covered copper wires in the insulating oil; and a capacitance measurement unit which measures the capacitance between the first and second paper-covered copper wires. The first and second paper-covered copper wires 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.

主权项

1. An apparatus for analyzing a state of an oil-filled electrical device, simulating a state of an oil-filled electrical device having a copper wire wrapped with insulating paper immersed in insulating oil, comprising:
a first paper-covered copper wire including a first copper wire and first insulating paper wrapped around said first copper wire, said first insulating paper being formed of the same material as the insulating paper held in said oil-filled electrical device; an electrode arranged adjacent to said first paper-covered copper wire; a tank containing said first paper-covered copper wire, said electrode and insulating oil extracted from said oil-filled electrical device, so that said first paper-covered copper wire and said electrode are immersed in said insulating oil extracted from said oil-filled electrical device; and a capacitance measuring unit for measuring electrostatic capacitance between said first paper-covered copper wire and said electrode.