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Break Kinetic Energy-based Overload Dynamic Model for a Small Hermetically Sealed Relay

  • Harbin Institute of Technology
  • Shaan Xi Qunli Co., Ltd.

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

Abstract

For the circuit is getting more and more complex, the requirements for higher overload capacity of the relay is rising. The experiments for a small hermetically sealed relay (SHSR) based on IEC standard is carried out, the image of breaking arc and dynamic characteristic of the SHSR is analyzed. For the disadvantages of operating voltage rising and anti-vibration performance decreasing, traditional force-velocity design method needs to be improved. To overcome these shortcomings, a novel break kinetic energy-based method is presented in this paper to improve the overload capacity of SHSR. The break kinetic energy model (BKEM) is established. An improved structure of the spring and the contact system of the relay is introduced according to BKEM. The FEM model for electromagnetic system and the dynamic model for contact system are established. The improved design is simulated, therefore carry out the comprehensive improvement of the resisting surge capacity. Overload tests are carried out to test the BKEM based design method. The validity of the BKEM for resisting surge performance has been verified comparing with the original design of the SHSR.

Original languageEnglish
Title of host publicationElectrical Contacts 2019 - Proceedings of the 65th IEEE Holm Conference on Electrical Contacts, Holm 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages223-227
Number of pages5
ISBN (Electronic)9781728136844
DOIs
StatePublished - Sep 2019
Event65th IEEE Holm Conference on Electrical Contacts, Holm 2019 - Milwaukee, United States
Duration: 14 Sep 201918 Sep 2019

Publication series

NameElectrical Contacts, Proceedings of the Annual Holm Conference on Electrical Contacts
Volume2019-September
ISSN (Print)0361-4395

Conference

Conference65th IEEE Holm Conference on Electrical Contacts, Holm 2019
Country/TerritoryUnited States
CityMilwaukee
Period14/09/1918/09/19

Keywords

  • break kinetic energy method
  • electromagnetic relay
  • resisting surge capacity
  • simulation model

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