Title :
AC contactor motion computed with coupled electromagnetic and structural finite elements
Author :
Juds, Mark A. ; Brauer, John R.
Author_Institution :
Eaton Corp., Milwaukee, WI, USA
fDate :
11/1/1995 12:00:00 AM
Abstract :
An alternating current relay contactor is analyzed using coupled electromagnetic and structural finite elements, The structural finite elements include a nonlinear spring for the relay contact arms. The electromagnetic finite elements include 2D nonlinear elements for the steel laminations and aluminum shading ring, as well as 1D and 0D elements for the voltage-driven coil windings and end-turn inductance. The computed current and motion of the actuator are in good agreement with measurements
Keywords :
contactors; finite element analysis; magnetic devices; relays; stators; 2D nonlinear elements; AC contactor motion; Al shading ring; alternating current relay contactor; aluminum shading ring; coupled electromagnetic and structural finite elements; electromagnetic finite elements; end-turn inductance; nonlinear spring; steel laminations; voltage-driven coil windings; Aluminum; Arm; Electromagnetic analysis; Electromagnetic coupling; Electromagnetic induction; Finite element methods; Lamination; Relays; Springs; Steel;
Journal_Title :
Magnetics, IEEE Transactions on
