NDLI: Fiberoptic SCADA system safeguards underground distribution network

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Fiberoptic SCADA system safeguards underground distribution network

Content Provider	IEEE Xplore Digital Library
Author	Landman, R.J. Louie, B.
Copyright Year	1988
Abstract	A network improvement program for improving the safety and operation of the Pacific Gas & Electric Company (PG&E) network distribution system is described. The program had three objectives: to prevent total network shutdown from secondary fault; to prevent a catastrophic failure in a building vault; and to minimize damage to customer and PG&E facilities. The supervisory control and data acquisition (SCADA) system monitors 500 remote terminal units (RTUs) in San Francisco and 150 RTUs in Oakland. The information includes: protector status, protector heat sensor, transformer temperature, vault temperature, vault water level, three-phase secondary current, and transformer sudden pressure relay. A fiber-optic communications system was chosen because it does not require trenching, is nonconductive, and is immune to electromagnetic and radio interference. The fiber-optic equivalent of a telephone cable repeater system with a repeater placed at each RTU location was used. The fiber-optic transceiver design is described, and cable requirements and vault installation are discussed. The RTU communications scheme is identified, and operating experiences are reported.<>
Starting Page	39
Ending Page	44
Page Count	6
File Size	739758
File Format	PDF
ISSN	08950156
Volume Number	5
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1992-04-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	SCADA systems Temperature sensors Optical fiber cables Optical fiber communication Protection Optical fiber sensors Power cables Repeaters Electrical safety Water heating
Content Type	Text
Resource Type	Article
Subject	Computational Theory and Mathematics Electrical and Electronic Engineering Computer Science Applications

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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