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Fiber Bragg grating monitors for thermal and stress of the composite insulators in transmission lines

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<mark>Journal publication date</mark>08/2018
<mark>Journal</mark>Global Energy Interconnection
Issue number3
Volume1
Number of pages9
Pages (from-to)382-390
Publication StatusPublished
<mark>Original language</mark>English

Abstract

Running composite insulators are prone to failure due to their harsh surrounding work environment, which directly affects the safe operation of transmission lines. This paper puts forward the method of using fiber Bragg grating (FBG) as the monitors to parameters correlated with thermal and stress of the composite insulators in transmission lines at working status. Firstly, monitoring points are found out by the mechanical test on composite insulator samples. Secondly, based on the monitoring theory, this paper introduces the feasibility design frame of the composite insulator with FBG implanted in the rod and the online monitor system. At last, it describes applications of this monitor system in the field of transmission lines.