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Optimization Scheme for Electrical Performance of Balanced-Force Electromagnetic Relays

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

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

Abstract

The balanced-force relay controls the closing and opening of contacts by energizing the coil to achieve power control. The actual products of relays have strict requirements for their pickup voltage and dropout voltage, so in addition to the coil voltage value, parameters such as pickup force need to be considered when designing relays. Products with poor matching of pickup and reaction forces may experience parameter deviations, asynchronous pickup and dropout, and other phenomena, resulting in a decrease in product qualification rate. This article proposes an electrical performance optimization scheme based on the simulation analysis of the electromagnetic attraction force and mechanical reaction force of the balance force relay, in response to the phenomenon of the pickup and dropout voltage parameters exceeding the tolerance. By appropriately optimizing the structure of the yoke and armature, the product qualification rate can reach over 80%.

Original languageEnglish
Title of host publicationThe Proceedings of the 20th Annual Conference of China Electrotechnical Society
EditorsQingxin Yang, Dianguo Xu, Xuerong Ye, Qiuyue Nie, Yueshi Guan
PublisherSpringer Science and Business Media Deutschland GmbH
Pages266-272
Number of pages7
ISBN (Print)9789819576517
DOIs
StatePublished - 2026
Externally publishedYes
Event20th Annual Conference of China Electrotechnical Society, ACCES 2025 - Harbin, China
Duration: 19 Sep 202521 Sep 2025

Publication series

NameLecture Notes in Electrical Engineering
Volume1581 LNEE
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

Conference20th Annual Conference of China Electrotechnical Society, ACCES 2025
Country/TerritoryChina
CityHarbin
Period19/09/2521/09/25

Keywords

  • dropout voltage
  • electrical performance
  • pickup voltage
  • simulation analysis

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