Pub Date : 2024-10-11DOI: 10.1109/TDEI.2024.3465313
{"title":"IEEE Transactions on Dielectrics and Electrical Insulation Information for Authors","authors":"","doi":"10.1109/TDEI.2024.3465313","DOIUrl":"https://doi.org/10.1109/TDEI.2024.3465313","url":null,"abstract":"","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"31 5","pages":"C4-C4"},"PeriodicalIF":2.9,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10714497","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142408933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H2S and CO2 are the SF6 decomposition components indicative of severe partial discharge (PD) faults and decomposition of organic insulation materials in partial over thermal (POT) faults, and their detection requires methods with high sensitivity and the capability for long-term online monitoring. In this article, wavelength division multiplexing (WDM) and cavity ring-down spectroscopy (CRDS) were combined to achieve the synchronous and accurate detection of H2S/CO2, which was executed by multiplexing the optical paths of two distributed feedback (DFB) lasers in the 1578/1600 nm wavelength band. To avoid instrument redundancy, a self-developed high-precision laser diode controller (LDC) board was implemented for the current and temperature modulation of dual-laser. By combining the CO2/H $_{mathbf {2}}$