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Numerical Investigation on Mechanical-Electrical-Thermal Characteristics of Contact Pairs with Rough Surface

  • School of Electrical Engineering and Automation, Harbin Institute of Technology
  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Contact resistance and contact spot temperature rise directly determine the electrical contact reliability of electrical switches. This paper establishes an electrical contact simulation model which can take into account the surface morphology of contacts. The real contact spot morphology, contact spot temperature rise, and possible melting area are calculated and extracted using commercial software COMSOL Multiphysics. And the evolution of real contact area in the mechanical loading process is given in detail. Through simulation, the relationships between contact force, peak value of inrush current, and the temperature rise in the contact area were established. The experimental results demonstrate the feasibility of the proposed simulation method.

Original languageEnglish
Title of host publicationThe Proceedings of 2024 International Conference of Electrical, Electronic and Networked Energy Systems
EditorsLimin Jia, Yanling Lv, Qiang Yang, Liansong Xiong, Dongyang Sun, Yonghui Liu
PublisherSpringer Science and Business Media Deutschland GmbH
Pages111-119
Number of pages9
ISBN (Print)9789819620494
DOIs
StatePublished - 2025
Externally publishedYes
EventInternational Conference of Electrical, Electronic and Networked Energy Systems, EENES 2024 - Xi'an, China
Duration: 18 Oct 202420 Oct 2024

Publication series

NameLecture Notes in Electrical Engineering
Volume1319 LNEE
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

ConferenceInternational Conference of Electrical, Electronic and Networked Energy Systems, EENES 2024
Country/TerritoryChina
CityXi'an
Period18/10/2420/10/24

Keywords

  • Contact resistance
  • Inrush Current
  • Melting area
  • Real contact area
  • Rough Surface

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