First results from an electro-magnetic (EM) drive high acceleration of a circuit breaker contact for a hybrid switch

Author

Roodenburg, Bart ; Kaanders, Marcel A M ; Huijser, Timo

Author_Institution

Delft Univ. of Technol.

fYear

2005

fDate

11-14 Sept. 2005

Abstract

The force acting on a workpiece by magnetic fields gained more interest due to new applications. These techniques are used for decades to accelerate or move objects, for instance for fast opening circuit breakers. This contribution describes an electro-magnetic drive system, which accelerates a circuit breaker contact for a DC hybrid switch. During the opening movement an average acceleration of ~19,000 mmiddots^-2 has been realised and the first 4 mm of contact separation is reached after ~422 mus, which is enough to withstand the rated switch voltage of 3 kV

Keywords

circuit breakers; electric drives; electrical contacts; magnetic fields; 3 kV; DC hybrid switch; EM drive; circuit breaker contact; contact separation; electro-magnetic drive; high acceleration; magnetic fields; Acceleration; Circuit breakers; Contacts; Fault currents; Magnetic field measurement; Power semiconductor switches; Switching circuits; Topology; Zero current switching; Zero voltage switching; Linear drive; Magnetic device; Measurement; Mechatonics;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Applications, 2005 European Conference on

Conference_Location

Dresden

Print_ISBN

90-75815-09-3

Type

conf

DOI

10.1109/EPE.2005.219704

Filename

1665894