Publication result detail

Movement of the Contact in LV Circuit Breaker

VALENTA, J., VÁVRA, Z., VANĚK, J., DOHNAL, P.

Original Title

Movement of the Contact in LV Circuit Breaker

English Title

Movement of the Contact in LV Circuit Breaker

Type

Paper in proceedings (conference paper)

Original Abstract

The electrodynamic forces caused by the short-circuit currents in low voltage circuit breakers are not only used for moving the arc into the quenching chamber but they also provide a good opportunity to affect the movement of the contact in the opening phase. The first part of this contribution contains theoretical analysis that describes effects of electrodynamic forces on the parts of the current-carrying conductor. Special attention is focused on the influence of current strait between the contacts. Performed calculations of forces are analysed in the next part. The forces are calculated by the finite element method (FEM). The computer program ANSYS is used.

English abstract

The electrodynamic forces caused by the short-circuit currents in low voltage circuit breakers are not only used for moving the arc into the quenching chamber but they also provide a good opportunity to affect the movement of the contact in the opening phase. The first part of this contribution contains theoretical analysis that describes effects of electrodynamic forces on the parts of the current-carrying conductor. Special attention is focused on the influence of current strait between the contacts. Performed calculations of forces are analysed in the next part. The forces are calculated by the finite element method (FEM). The computer program ANSYS is used.

Keywords

switching arc, finite element method, electrodynamic force

Key words in English

switching arc, finite element method, electrodynamic force

Authors

VALENTA, J., VÁVRA, Z., VANĚK, J., DOHNAL, P.

Released

19.09.2005

Publisher

Politechnika Lódzka Instytut Aparatów Elektrycznych

Location

Lodz, Polsko

ISBN

83-7283-165-3

Book

Tenth International Conference on Switching Arc Phenomena

Volume

10

Pages from

17

Pages count

4

URL

Knihovna ÚVEE FEKT

BibTex

@inproceedings{BUT16704,
  author="Jiří {Valenta} and Zdeněk {Vávra} and Jaromír {Vaněk} and Petr {Dohnal}",
  title="Movement of the Contact in LV Circuit Breaker",
  booktitle="Tenth International Conference on Switching Arc Phenomena",
  year="2005",
  volume="10",
  number="1",
  pages="4",
  publisher="Politechnika Lódzka Instytut Aparatów Elektrycznych",
  address="Lodz, Polsko",
  isbn="83-7283-165-3",
  url="Knihovna ÚVEE FEKT"
}