Detection of Local Softening, Welding and Formation of Metallic Bridges between the Copper Contact Pair Using Temperature Measurement

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F19%3APU132180" target="_blank" >RIV/00216305:26220/19:PU132180 - isvavai.cz</a>
Result on the web
<a href="https://ieeexplore.ieee.org/abstract/document/8778097" target="_blank" >https://ieeexplore.ieee.org/abstract/document/8778097</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/EPE.2019.8778097" target="_blank" >10.1109/EPE.2019.8778097</a>

Result language
angličtina
Original language name
Detection of Local Softening, Welding and Formation of Metallic Bridges between the Copper Contact Pair Using Temperature Measurement
Original language description
A paper is focused on the analysis of local softening, welding and formation of metallic bridges between the copper contact pair using temperature rise measurement. The contact pair is one of the most important and, at the same time, most problematic parts of the current-carrying path of electrical switching apparatuses, because of its power losses. Amount of power losses is mostly affected by a contact force and by a type of used contact material. Inappropriate choice of these parameters could lead to the extreme heating of contact pair and whole device. A material of contact is affected by a high temperature. Phenomena called local softening and welding may occur due to the high temperature. Metallic bridges create a permanent connection between the contacts. This permanent connection decreases a contact resistance, but unfortunately it disables the function of the entire switching device – the ability to break the electric circuit. The paper shows one of the possible solutions to the problem with on-line detection of phenomena between contact pair using temperature rise measurement.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the 2019 20th International Scientific Conference on Electric Power Engineering (EPE)
ISBN
978-1-7281-1333-3
ISSN
—
e-ISSN
—
Number of pages
4
Pages from-to
141-144
Publisher name
VSB – Technical University of Ostrava
Place of publication
Ostrava
Event location
Kouty nad Desnou, Jeseniky mountains, Czech Repu
Event date
May 15, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000535890900026

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