상세정보
학술지
Thermal analysis of 22.9-kV crosslinked polyethylene cable joint based on partial discharge using fiber Bragg grating sensors
- 발행일
- 202103
- 출처
- Optical Engineering, v.60 no.3, pp.1-8
- ISSN
- 0091-3286
- 출판사
- SPIE
- 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).
- KSP 제안 키워드
- Bare FBG, Coefficient of thermal expansion, Critical factors, Crosslinked polyethylene(XLPE), Crosslinked polyethylene cable, Experimental Result, Fiber Bragg grating sensors, Fiber bragg grating (FBG) sensor, High Temperature, Optical fiber, Partial Discharge(PD)