Modeling of contact bounce of AC contactor

Author

Morera, Xavier Alabern ; Espinosa, Antonio Garcia

Author_Institution

Electr. Eng. Dept., Univ. Politecnica de Catalunya, Terrassa, Spain

Volume

1

fYear

2001

fDate

2001

Firstpage

174

Abstract

A contactor is a switching device, usually operated by an electromagnet. They are widely used to operate relays that turn on electric motors and other electrical apparatus. The main components of a contactor are contacts, the springs, the magnets and a coil, so the designer of contactors needs to predict their mechanical and electrical performance. This is a coupled problem of electromagnetic fields, transient circuits and mechanical movement. This paper presents a methodology for dynamic analysis of AC cotactor, the model is based on the electro-magnetic system equations and mechanical dynamic properties of a real contactor

Keywords

contactors; electrical contacts; electromagnetic fields; electromagnets; force; AC contactor; coil; contact bounce modelling; electric motors; electrical apparatus; electrical performance; electromagnetic fields; electromagnetic system equations; magnets; mechanical movement; mechanical performance; springs; switching device; transcient circuits; Coils; Contacts; Coupling circuits; Electric motors; Electromagnetic coupling; Electromagnetic fields; Electromagnets; Magnets; Relays; Springs;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2001. ICEMS 2001. Proceedings of the Fifth International Conference on

Conference_Location

Shenyang

Print_ISBN

7-5062-5115-9

Type

conf

DOI

10.1109/ICEMS.2001.970637

Filename

970637