NDLI: Equipment for Power Outage in Operation of Driven-Mode NMR Magnet

Content Provider	IEEE Xplore Digital Library
Author	Matsumoto, S. Kiyoshi, T. Nishijima, G. Hashi, K. Takahashi, M. Noguchi, T. Ohki, S. Maeda, H. Shimizu, T.
Copyright Year	2002
Description	A 1.02-GHz nuclear magnetic resonance (NMR) system was successfully operated in a driven-mode over a half year. A main coil of the 1.02-GHz NMR magnet consists of a Bi-2223 high-temperature superconducting (HTS) innermost coil and low-temperature s-uperconducting outer coils. The magnet including the HTS coil was designed to operate in the driven mode using highly stabilized dc power supply. The power supply should be operated continuously without interruption. Failure in the power supply due to a power outage is unacceptable. The equipment for a power outage, which consists of an emergency generator, a momentary voltage drop compensator, and a safety switch, was prepared. A malfunction of overcurrent occurred in the momentary voltage drop compensator at the power outage. Due to the equipment for the power outage, the dc power supply was successfully recovered without a quenching of the magnet.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	1
Ending Page	4
Page Count	4
File Size	575228
File Format	PDF
ISSN	10518223
Volume Number	26
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2016-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power system faults Power system restoration Superconducting magnets Nuclear magnetic resonance Safety Generators upgrade from 920 MHz to 1.02 GHz NMR system Bi-2223 HTS innermost coil driven-mode equipment for power outage HTS/LTS NMR magnet
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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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
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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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