NDLI: Investigations on condensed metal vapour on the surface of alumina ceramics within vacuum interrupters after switching

Content Provider	IEEE Xplore Digital Library
Author	Fink, H. Gentsch, D. Heimbach, M.
Copyright Year	2000
Description	Author affiliation: ABB Calor Emag Mittelspannung GmbH, Ratingen, Germany (Fink, H.)
Abstract	Basic investigations have been carried out on the dielectric performance of the ceramic (high-purity alumina, Al/sub 2/O/sub 3/) surface in vacuum interrupters after switching. In order to examine the influence of the shielding on the protection of the ceramic surface against metal vapour condensation different types of vacuum interrupters (VIs) have been tested: VIs with and without shielding. Additionally, two contact materials CuCr 25 wt.-% and WCAg 40 wt.-% have been investigated to compare the adhension of different metal vapours to alumina ceramic surfaces. After having performed a high-voltage conditioning of the VIs, DC arcs with arbitrary arcing times were triggered between the contacts simulating the generation of metal vapour during high current interruption and load break switching. Between the arcing tests the insulation levels of all VIs have been tested by means of an AC high voltage source. Afterwards the VIs were opened and the microstructure of the metallic condendate on the inner ceramic surface was analysed by means of scanning electron microscopy (SEM). The integral chemical composition of the metallic film was investigated by inductive coupled plasma (ICP). The conductivity of the surface condensate resulting from the condensation of the metal vapour was measured in order to compare the material investigations with the electrical behaviour of the surface.
Starting Page	102
Ending Page	107
File Size	782007
Page Count	6
File Format	PDF
ISBN	0780357914
DOI	10.1109/DEIV.2000.877266
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-09-18
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ceramics Interrupters Inorganic materials Insulation testing Scanning electron microscopy Plasma measurements Dielectrics Protection DC generators Voltage
Content Type	Text
Resource Type	Article

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

Condensed metal vapor on alumina ceramic in vacuum interrupters

Surface dielectric properties of Cu-evaporated alumina insulators in vacuum and air

Influence of sintering temperature on the flashover performance of alumina insulators in vacuum

Surface flashover of alumina insulators in vacuum under impulse voltage (the influence of additives)

Flashover performance of alumina insulators in vacuum

Dielectric characterization of ceramic mate for high voltage vacuum insulation

Peculiarities of the switching performance of two 24 kV-vacuum interrupters in series

Effect of short circuit switching on dielectric properties of vacuum interrupters

Influence of switching on dielectric properties of vacuum interrupters

Investigations on condensed metal vapour on the surface of alumina ceramics within vacuum interrupters after switching

Similar Documents

Condensed metal vapor on alumina ceramic in vacuum interrupters

Surface dielectric properties of Cu-evaporated alumina insulators in vacuum and air

Influence of sintering temperature on the flashover performance of alumina insulators in vacuum

Surface flashover of alumina insulators in vacuum under impulse voltage (the influence of additives)

Flashover performance of alumina insulators in vacuum

Dielectric characterization of ceramic mate for high voltage vacuum insulation

Peculiarities of the switching performance of two 24 kV-vacuum interrupters in series

Effect of short circuit switching on dielectric properties of vacuum interrupters

Influence of switching on dielectric properties of vacuum interrupters

Investigations on condensed metal vapour on the surface of alumina ceramics within vacuum interrupters after switching