{"title":"Examples of Application of a DTS System in a Utility Environment","authors":"S. Cherukupalli, G. Anders","doi":"10.1002/9781119487739.ch10","DOIUrl":"https://doi.org/10.1002/9781119487739.ch10","url":null,"abstract":"This chapter contains several examples of the application of a DTS system in BC Hydro. In early 1990s, the utility undertook an extensive program of monitoring some of the more heavily loaded transmission cables. This, most likely, was the first such attempt in the world and it provided a valuable experience for the future similar endeavors around the globe. The chapter shows how temperature monitoring of existing transmission corridors may be conducted by blowing fiber into spare ducts and isolating hot spots along the route. It presents two studies, one of a 230kV system and a second 69kV system, and discusses how the impact of hot spot on future performance. BC Hydro is an electrical utility that has an extensive 230kV underground system in a metropolitan area. Some of these older circuits periodically operate near their thermal limits under first contingency conditions.","PeriodicalId":288973,"journal":{"name":"Distributed Fiber Sensing and Dynamic Rating of Power Cables","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125176108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Optical Fibers, Connectors, and Cables","authors":"S. Cherukupalli, G. Anders","doi":"10.1002/9781119487739.ch4","DOIUrl":"https://doi.org/10.1002/9781119487739.ch4","url":null,"abstract":"This chapter introduces the types of fibers available in the industry for distributed temperature sensing (DTS) applications, the types of optical connectors, and their relevance in the context of distributed sensing applications. The high signal bandwidth of optical fibers provides significantly greater information‐carrying capacity. Some power cable manufacturers can provide optical fibers in metal tubes for integration into power cables during manufacturing. Multiple‐mode fiber has a bigger core than the single‐mode fiber and allows for more optical power to be launched into it, bringing higher temperature resolution. Fiber optic links require a method to connect the transmitter to the fiber optic cable and the fiber optic cable to the receiver. High‐quality optical fiber connections and fusion splices are important because they affect light attenuation and thereby the ability of DTS systems to detect faint backscattered light, which in turn affects measurement accuracy, spatial resolution, calculation time, and so on.","PeriodicalId":288973,"journal":{"name":"Distributed Fiber Sensing and Dynamic Rating of Power Cables","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131558345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}