DIANQI YU NENGXIAO GUANLI JISHU ›› 2020, Vol. 591 ›› Issue (6): 5-9.doi: 10.16628/j.cnki.2095-8188.2020.06.002

• Research & Analysis • Previous Articles     Next Articles

Experimental Investigation of Contact Bounce Phenomena Occurred in Electromagnetic Relay

FANG Yaqi1, REN Wanbin2   

  1. 1. School of Electrical Information and Engineering,Northeast Petroleum University,Daqing 163318,China;
    2. School of Electrical Engineering and Automation,Harbin Institute of Technology,Harbin 150001,China
  • Received:2020-02-18 Online:2020-06-15 Published:2020-07-07

Abstract: The behavior of contact closure bounce is directly related to the dynamic response characteristics and electrical life of the electromagnetic relay.In this article,the physical model of the contact closure bounce behavior is introduced firstly.Secondly,the effects of magnetic gap,contact gap and load voltage on bounce duration,bounce height and bounce times are investigated experimentally.The conclusions can provide reference for the optimization design of electromagnetic relay and the failure analysis of dynamic contact welding.

Key words: electromagnetic relay, contacts, bounce, bounce height, magnetic gap, contact gap

CLC Number: