Optical fiber sensor for electrification measurement in power transformers

Static electrification and partial discharges caused by oil flow in power transformers lead to many accidents. This paper introduces an optical fiber sensor which can be directly mounted inside high-voltage electric devices for electrification measurement in power transformers. Unlike the existing normal electrification measurement method which only be used in static oil, the new one take optical fiber as its probe and measures the electrification in flowing oil by detecting luminous flux, and is available for on-line monitoring.© (2000) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.