title: Investigations of the contact bounce behaviors and relative dynamic welding phenomena for electromechanical relay.
abstract: Dynamic welding, being the principal mechanism of sticking failure, correlates closely with the contact bounce of electromechanical relay. The typical waveforms of dynamic contact force and contact voltage at making and breaking process are obtained with the use of a new designed test rig. The variations in bounce time, bounce numbers, last bounce duration, and relevant welding force are investigated in the electrical endurance test. It is determined that the welding strength and the welding probability are increased with the reduced stationary force. The degradation physical mechanism is present to better understand the relationship between dynamic welding and operation characteristics of electromechanical relay.
authors.affiliation: School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China.
authors.forename: Wanbin
authors.initials: W
authors.lastname: Ren
authors.affiliation: Department of Electronic and Information Engineering, Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: He
authors.affiliation: School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China.
authors.forename: Jianbing
authors.initials: J
authors.lastname: Jin
authors.affiliation: State Grid Material Co. Ltd, Beijing, China.
authors.forename: Sida
authors.initials: S
authors.lastname: Man