ETRI-Knowledge Sharing Plaform

ENGLISH

성과물

논문 검색
구분 SCI
연도 ~ 키워드

상세정보

학술지 Thermal analysis of 22.9-kV crosslinked polyethylene cable joint based on partial discharge using fiber Bragg grating sensors
Cited 2 time in scopus Download 4 time Share share facebook twitter linkedin kakaostory
저자
김현진, 박시웅, 여찬일, 강현서, 박형준
발행일
202103
출처
Optical Engineering, v.60 no.3, pp.1-8
ISSN
0091-3286
출판사
SPIE
DOI
https://dx.doi.org/10.1117/1.OE.60.3.034101
협약과제
21ZK1100, 호남권 지역산업 기반 ICT 융합기술 고도화 지원사업, 이길행
초록
Thermal effects of power cables are critical factors for determining the remaining lifetime and efficiency of power grids. Herein, we propose a fiber Bragg grating (FBG) sensor package with high-Temperature sensitivity. Using polyacetal, which has a higher coefficient of thermal expansion than typical optical fibers, we constructed the proposed sensor structure. The developed sensor exhibited about 14.1 times higher temperature sensitivity than a typical bare FBG sensor. To measure the temperature variation of power cable joints caused by partial discharge, we constructed a mock system similar to a manhole, and we installed the developed sensor at a 22.9-kV crosslinked polyethylene cable joint. The experimental result reveals that even a slight temperature difference of 0.2°C can be measured using PD (300 pC at 20 kV).
키워드
fiber Bragg grating, monitoring, partial discharge, temperature, underground distribution network
KSP 제안 키워드
Bare FBG, Coefficient of thermal expansion, Critical factors, Crosslinked polyethylene(XLPE), Crosslinked polyethylene cable, Distribution network(DN), Experimental Result, Fiber Bragg grating sensors, Fiber bragg grating (FBG) sensor, High Temperature, Optical fiber