NDLI: Design of a sensor to predict arcing faults in nuclear switchgear

Content Provider	IEEE Xplore Digital Library
Author	Land III, H.B. Eddins, C.L. Gauthier Jr., L.R. Klimek, J.M.
Copyright Year	2003
Description	Author affiliation: Appl. Phys. Lab., Johns Hopkins Univ., Laurel, MD, USA (Land, H.B., III; Eddins, C.L.; Gauthier, L.R., Jr.; Klimek, J.M.)
Abstract	The US Navy made a major step forward in the protection of switchgear from arcing faults with the installation of Arc Fault Detection Systems beginning in 1990. These systems have a proven history of responding to arcs quickly enough to minimize damage and have reliability high enough to be certified for use in nuclear reactor power systems. However, all damage is not eliminated and loss of power never occurs at a convenient time. The predominant cause of arcing failures in Navy switchboards has been identified. Test data that confirms how these failures develop will be discussed. A low cost sensor has been designed that will allow the detection of the majority of impending arcing failures by performing Continuous Thermal Monitoring of the switchboard. A single detector can determine if a connection within the switchboard has exceeded 300/spl deg/C, which is well below the 1083/spl deg/C needed to melt copper. The operator is notified upon the detection of an impending failure and corrective action can be taken before arcing occurs. Details of the development of the sensor will be discussed.
Starting Page	1919
Ending Page	1923
File Size	459317
Page Count	5
File Format	PDF
ISBN	0780376366
DOI	10.1109/NSSMIC.2002.1239701
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-11-10
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Switchgear Power system reliability Power system protection Electrical fault detection History Fission reactors Power system faults Testing Costs Thermal sensors
Content Type	Text
Resource Type	Article

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