Studies On Substation Comprehensive Monitoring System Based On Fiber Grating

The fiber grating is one of the faster no fountain of fiber apparatus. And the technique of fiber grating has s lot of own merits. Since 1978, the first fiber grating was firstly made by K. O. Hill etc in the way of standing wave in the fiber that was mixed into germanium, the technique of fiber was widened for the emergence of fiber grating, the application of achievement was increased more and more. The fiber grating sensor, which use fiber to sense and transmit signals, has the advantages of resistance to high voltage, to electromagnetic interference, and that of slightness, lightweight, low loss, etc, so the technologies of fiber grating is widely used in the electric power industry.Outward department hot breakdown(main the nudity deal with contact because of press to connect bad etc. reason, deal with contact temperature to go up under the big electric current function, get in touch with electric resistance aggrandizement), the inner part hot to break down(main the breakdown order to seal completely in insulate the material or the metals outer shell, having fever time long and more stable, order surroundings conductor with breakdown or insulate the material occurrence calories to deliver, make the partial temperature go up), the electric cable leads the part of the hot breakdown check etc. the problem contain obvious function.This article to some questions which appears in the application process like (light signal weakens, between switch electronic contact and sensor insulation strength reduced) has carried on the principle analysis, and corresponding proposed the correction plan, to corrected after the effect to carry on the science proof.