NDLI: Interrupting Characteristics of Puffer and Suction Type SF6 Gas Interrupter Especially in Thermal Breakdown Region

Content Provider	IEEE Xplore Digital Library
Author	Ken-ichi Natsui Kunio Hirasawa Yoshio Yoshioka Tsuneyoshi Takasuna Ichiro Nakamura Keiichi Hirata
Copyright Year	1963
Abstract	Interrupting characteristics in thermal region within the range of 30-60kA current levels have been examined with an experimental model breaker under some SF6 gas pressures of 4.5-15 bars. The interrupter tested with the breaker was designed to shorten the arcing time based on the puffer principle with the aid of a suction chamber. Arcing time was shortened with the fastly established gas-flow into the suction chamber in comparison with conventional puffer type interrupters. Interrupting characteristics in short arcing time region were much influenced by interrupter structures, interrupting currents, filling gas pressures and rates of rise of recovery voltage (rrrV). Particularly, in large current region over 50kA, the minimum arcing time was sensitively affected by moving side interrupter structures. Using a newly developed interrupter characterized by a follower type insulating nozzle, it has demonstrated a minimum arcing time of 0.37 cycles for the 63kA 90% short line fault (SLF) condition for two breaks per pole under an SF6 gas pressure of 10 bars, and also has demonstrated 0.33 cycles for the 50kA 90% SLF condition under a pressure of 6 bars.
Starting Page	803
Ending Page	810
Page Count	8
File Size	2900980
File Format	PDF
ISSN	00189510
Volume Number	PAS-103
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1984-04-01
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Sulfur hexafluoride Interrupters Electric breakdown Bars Thermal engineering Laboratories Voltage Power system reliability Power system economics Power generation economics
Content Type	Text
Resource Type	Article
Subject	Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
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