Title :
3-D finite element analysis of operating characteristics of AC electromagnetic contactors
Author :
Kawase, Yoshihiro ; Tatsuoka, Satoshi ; Yamaguchi, Tadashi ; Ito, Shokichi
Author_Institution :
Dept. of Electron. & Comput. Eng., Gifu Univ., Japan
fDate :
9/1/1994 12:00:00 AM
Abstract :
AC electromagnets are widely used for electromagnetic devices. It is necessary to predict the dynamic behavior for the optimum design of AC electromagnets. The 3-D analysis method has been used to obtain the operating characteristics of an AC electromagnetic contactor. The electromagnet of the contactor has a complex load curve relating to the position of the armature. The time variations of the exciting current and the stroke of the electromagnetic under the load are calculated by our method. It is clarified that of the operating characteristics of the electromagnetic contactor can be accurately calculated by comparing it with the measurements
Keywords :
Maxwell equations; contactors; electromagnetic devices; electromagnets; finite element analysis; relays; 3D analysis method; 3D finite element analysis; AC electromagnetic contactors; AC electromagnets; armature; complex load curve; dynamic behavior; electromagnetic devices; exciting current; load; operating characteristics; optimum design; time variations; Coils; Contactors; Electromagnetic analysis; Electromagnetic devices; Electromagnets; Finite element methods; Magnetic analysis; Maxwell equations; Springs; Voltage;
Journal_Title :
Magnetics, IEEE Transactions on
