NDLI: Characteristic of large current making switch to verify making performance of high voltage switchgear

Content Provider	IEEE Xplore Digital Library
Author	Suzuki, K. Nishiwaki, S. Kawano, H. Kudo, K. Miyazaki, K. Miyake, N. Ikeda, H.
Copyright Year	2008
Description	Author affiliation: Kyushu Inst. of Technol., Japan (Ikeda, H.) \|\| Toshiba Corp., Kawasaki, Japan (Suzuki, K.; Nishiwaki, S.; Kawano, H.; Kudo, K.; Miyazaki, K.; Miyake, N.)
Abstract	The test to verify the making performance of high voltage switchgear is required and the standard also requires the making test. We have developed a large current making switch (rated voltage of 180 kV, trigger energy of 5.5 kJ) to mainly apply to making tests of high voltage switchgears, such as short-circuit making and out-of-phase. In this kind of test is important that the gap withstand high voltage before trigger and ignite with small time delay. Our development targets for a making switch were set up (1) Making current to be made : 63 kA. (2) Minimum voltage to make triggering possible : 2 kV. (3) Time delay : 200 microsecond or less. We investigated the performance of gas gap switches with Sulfur Hexafluoride $(SF_{6})$ gas as an insulation medium to find the most suitable conditions for the purpose. It was confirmed that the large current making switch almost achieved the target time delay of 200 ms when the gap length 30 mm, $SF_{6}$ gas pressure is 0.4 MPa and trigger energy is 5.5 kJ and withstand AC200 kV at a voltage enduarance test. It was applied to a short circuit making test of 420 kV GCB and the test result satisfied the standard.
Starting Page	541
Ending Page	544
File Size	4342439
Page Count	4
File Format	PDF
ISBN	9780955805202
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-09-07
Publisher Place	UK
Access Restriction	Subscribed
Rights Holder	GD2008 Local Organizing Committee
Subject Keyword	Switchgear Circuit breakers Delay effects Sulfur hexafluoride Laboratories Switches Voltage Gas insulation Circuit testing Switching circuits
Content Type	Text
Resource Type	Article

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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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