NDLI: IEEE Power Engineering Review

Content Provider	IEEE Xplore Digital Library
Author	Land III, H.B.
Copyright Year	1981
Abstract	In the late 1970s, the US Navy recognized that electrical fires were becoming a major problem in submarines. Approximately three fires per year were occurring in the main electrical distribution switchboards across the submarine fleet. The Johns Hopkins University Applied Physics Laboratory (JHU/APL) worked with the Navy to design two basic arc fault detection (AFD) and continuous thermal monitoring (CTM) systems. The first systems were designed using all military-specification (Mil-Spec) hardware. At that point in time, Mil-Spec hardware greatly increased system reliability but it drove up the system cost. The most recent systems were designed using commercial-off-the-shelf (COTS) assemblies and parts and are cost effective for commercial use. These systems have proven effective in 450 V AC, 4160 V AC, and 700 V DC switchboards. The timing on the systems is adjustable to allow for optimum usage with air circuit breakers or sealed breakers. While the AFD/CTM systems have seen extensive use in military ships, they are equally suited for the protection of all types of critical switchboards. Commercial ships, power generation facilities, power distribution switchboards, hospitals, web hosting facilities, etc., could all benefit from the increase in power reliability offered by this type of technology. These systems can be included in the original design of the switchboard or installed in existing switchboards with equal ease.
Starting Page	c2
Ending Page	c2
File Size	226892
File Format	PDF
ISSN	02721724
Volume Number	22
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-04-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fires Underwater vehicles Hardware Costs Marine vehicles Physics Laboratories Electrical fault detection Monitoring Reliability
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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