Analysis of transverse magnetic field in the vacuum interrupter based on orthogonal design

Author

Yu, Li ; Yuan, Shun ; Wang, Yan-jie ; Li, Feng

Author_Institution

Sch. of Electr. Eng., Shenyang Univ. of Technol., Shenyang

fYear

2008

Firstpage

1

Lastpage

5

Abstract

Five structural parameters of contrate contact, such as number and inclination of slot, contact diameter, the depth and thickness of contact cup, are arranged orthogonally to study magnetic characteristics. Experiments based on orthogonal design are analyzed by three dimensions finite element method. The regression equations of the relationship between structural parameters of contact and Lorentz force acting on the arc are given. In addition, the relationship between arc speed of the constricted arc and Lorentz force is investigated with the help of one-dimensional thermodynamic model of arc. The maximum rated short-circuit current varies as 0.4 power of the contact diameter.

Keywords

finite element analysis; magnetic fields; regression analysis; short-circuit currents; vacuum interrupters; 1D thermodynamic model; 3D finite element method; Lorentz force; contact structural parameters; orthogonal design; regression equations; short-circuit current; transverse magnetic field; vacuum interrupter; Conductors; Equations; Interrupters; Lorentz covariance; Magnetic analysis; Magnetic fields; Magnetic flux; Structural engineering; Thermodynamics; Vacuum arcs;

fLanguage

English

Publisher

ieee

Conference_Titel

Automation Congress, 2008. WAC 2008. World

Print_ISBN

978-1-889335-38-4

Electronic_ISBN

978-1-889335-37-7

Type

conf

Filename

4699097