Analysis of a circuit breaker solenoid actuator system using the decoupled CAD-FE-integral technique

Author

Li, Edward ; McEwan, P.M.

Author_Institution

Sch. of Eng. Inf. Technol., Sheffield City Polytech., UK

Volume

28

Issue

2

fYear

1992

fDate

3/1/1992 12:00:00 AM

Firstpage

1279

Lastpage

1282

Abstract

A decoupled three-dimensional CAD (computer-aided-design) finite-element-integral method, combined with the Runge-Kutta method, is offered to determine the dynamic characteristics and design requirements of a circuit breaker solenoid actuator, when energized from a DC supply. The model couples the electric, magnetic, and mechanical systems of the device. The presented solution takes account of the nonlinear magnetic material properties, the dimensions of the magnetic circuit, the coil parameters, and load of the trip mechanism system. The predicted dynamic characteristics from the analysis correlate closely with the results from the test performed on the actuator and demonstrate the applicability of the proposed techniques to the optimization of circuit breaker actuator performance and electromagnetic solenoid design

Keywords

circuit breakers; electric actuators; finite element analysis; power engineering computing; solenoids; 3D CAD finite-element-integral method; DC supply; Runge-Kutta method; circuit breaker solenoid actuator system; coil parameters; decoupled CAD-FE-integral technique; design requirements; dynamic characteristics; electromagnetic solenoid design; load; magnetic circuit dimensions; nonlinear magnetic material properties; optimization; trip mechanism; Actuators; Circuit analysis; Circuit breakers; Circuit testing; Coupling circuits; Design automation; Finite element methods; Magnetic analysis; Nonlinear dynamical systems; Solenoids;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.123923

Filename

123923