Insulation deterioration detection system, insulation deterioration detection detection method, and insulation deterioration detection sensor

摘要

[Object] Cost-effective detection of insulation deterioration of an electrical device. [Solvent] The insulation deterioration detection system includes a sensor part 1 having a first optical fiber sensor 10 mounted on an electric device 4 via an elastic wave attenuation component 12 for damping elastic waves, and a second optical fiber sensor 11, mounted on the electrical apparatus in the vicinity of the first optical fiber sensor, light transmission parts, which are light transmission parts 22, 27A to 27D, optically connected to the sensor part, the light from a light source 21 to the first optical fiber sensor supplying the reflected light inside the first optical waveguide sensor from the light from the light source as reference light to the second optical waveguide sensor, and the light reflected from the second optical waveguide sensor light from the reference light as a detection light, and an analysis part 26, the a Isolationsverschlec Detection of the electrical device detected by analyzing the detected by the light transmission part detection light analyzed has.