NDLI: Physics of high-current interruption of vacuum circuit breakers

Content Provider	IEEE Xplore Digital Library
Author	Schade, E.
Copyright Year	1973
Abstract	The present state of knowledge concerning the physical phenomena of high-current interruption with vacuum interrupters (VI) is reviewed. Two arc control methods, application of externally applied axial magnetic field (AMF) or transverse magnetic field (TMF), are available to distribute the heat flux from arc to contacts homogeneously over contact surface, to avoid local overheating. AMF spreads the arc at fixed location. TMF moves the constricted arc over contact surface. Change from diffuse to constricted arcing mode results from superposition of two effects: "instability of anode sheath" and "influence of magneto-gas-dynamic", when no AMF component exists. Conditions of arc memory at current zero determine the process of current extinction and of recovery of breakdown strength to its ultimate value. Evaporation of metal vapor continues. Charge exchange between fast ions and slow vapor atoms increases the residual charge, left in the switching gap at current zero. Post arc current prolongs and increases consequently. Breakdown during recovery of dielectric strength occurs instantaneously or sporadically delayed. Behavior of breakdown is essentially determined by vapor density. Breakdown mechanism of delayed breakdown is still unresolved. Vapor density is too low to initiate breakdown alone. Lack of fundamental knowledge in combination with complexity hampers numerical treatment of arc behavior, as well as heat flux to contact during arcing and process of interruption presently, as needed for interpretation of experimental results and prediction purposes.
Sponsorship	IEEE Nuclear and Plasma Sciences Society
Starting Page	1564
Ending Page	1575
Page Count	12
File Size	558923
File Format	PDF
ISSN	00933813
Volume Number	33
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-10-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Physics Circuit breakers Electric breakdown Magnetic fields Dielectric breakdown Delay Interrupters Temperature control Anodes Magnetic flux vacuum interrupter Arc control high-current vacuum arc interruption of current physical phenomena recovery of breakdown strength review
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Condensed Matter Physics

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

Recovery of breakdown strength of a vacuum interrupter after extinction of high currents

Decay Modes of Anode Surface Temperature After Current Zero in Vacuum Arcs—Part II: Theoretical Study of Dielectric Recovery Strength

Dielectric strength of a vacuum interrupter contact gap after making current operations

Theoretical and Experimental Investigation of New Innovative TMF–AMF Contacts for High-Current Vacuum Arc Interruption

The duration of arcing following late breakdown in vacuum circuit breakers

Reignition phenomena after high-frequency current interruption with short vacuum gaps

Development of High-Voltage Vacuum Circuit Breakers in China

Anode Temperature and Plasma Sheath Dynamics of High Current Vacuum Arc After Current Zero

Particle detection in vacuum interrupter after current interruption

Physics of high-current interruption of vacuum circuit breakers

Similar Documents

Recovery of breakdown strength of a vacuum interrupter after extinction of high currents

Decay Modes of Anode Surface Temperature After Current Zero in Vacuum Arcs—Part II: Theoretical Study of Dielectric Recovery Strength

Dielectric strength of a vacuum interrupter contact gap after making current operations

Theoretical and Experimental Investigation of New Innovative TMF–AMF Contacts for High-Current Vacuum Arc Interruption

The duration of arcing following late breakdown in vacuum circuit breakers

Reignition phenomena after high-frequency current interruption with short vacuum gaps

Development of High-Voltage Vacuum Circuit Breakers in China

Anode Temperature and Plasma Sheath Dynamics of High Current Vacuum Arc After Current Zero

Particle detection in vacuum interrupter after current interruption

Physics of high-current interruption of vacuum circuit breakers