Detail publikačního výsledku

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

ŠIMEK, D.; DOSTÁL, L.; VALENTA, J.

Originální název

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

Anglický název

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

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

electrical switching devices, electrical contact, local softening, metallic bridge

Klíčová slova v angličtině

electrical switching devices, electrical contact, local softening, metallic bridge

Autoři

ŠIMEK, D.; DOSTÁL, L.; VALENTA, J.

Rok RIV

2019

Vydáno

15.05.2019

Nakladatel

VSB – Technical University of Ostrava

Místo

Ostrava

ISBN

978-1-7281-1333-3

Kniha

Proceedings of the 2019 20th International Scientific Conference on Electric Power Engineering (EPE)

Edice

first

Strany od

141

Strany do

144

Strany počet

4

URL

https://ieeexplore.ieee.org/abstract/document/8778097

BibTex

@inproceedings{BUT157061,
  author="David {Šimek} and Lukáš {Dostál} and Jiří {Valenta}",
  title="Detection of Local Softening, Welding and Formation of Metallic Bridges between the Copper Contact Pair Using Temperature Measurement",
  booktitle="Proceedings of the 2019 20th International Scientific Conference on Electric Power Engineering (EPE)",
  year="2019",
  series="first",
  pages="141--144",
  publisher="VSB – Technical University of Ostrava",
  address="Ostrava",
  doi="10.1109/EPE.2019.8778097",
  isbn="978-1-7281-1333-3",
  url="https://ieeexplore.ieee.org/abstract/document/8778097"
}