Publication detail

Low-Voltage Circuit-Breaker Behavior under Overload Conditions

DOSTÁL, L. VALENTA, J. ŠIMEK, D.

Original Title

Low-Voltage Circuit-Breaker Behavior under Overload Conditions

Type

journal article in Scopus

Language

English

Original Abstract

This article deals with temperature-rise of current path of modern low-voltage circuitbreaker with rotary contact system at overloads and subsequent experimental verification of selected model. The first part describes optimal setting of input conditions of simulation and mainly transient phenomena at contacts causing dynamic change of contact resistances due to change of total contact force, a new challenge to be solved in this contribution. The second part devotes laboratory measurement on prepared sample of the breaker for verification of transient simulation. These simulations are not only important for understanding of rotary system behavior under overloads, but forms an essential part of R & D process due to the speed-up of optimal current path design. In the end, both the financial costs and time effort could be decreased.

Keywords

low-voltage circuit-breaker, overload, Holm force, thermal losses, SolidWorks Flow Simulation

Authors

DOSTÁL, L.; VALENTA, J.; ŠIMEK, D.

Released

1. 6. 2018

Publisher

Department of Physics, FEE CTU in Prague

Location

Prague

ISBN

2336-2626

Periodical

Plasma Physics and Technology

Year of study

5

Number

1

State

Czech Republic

Pages from

1

Pages to

4

Pages count

4

URL

https://ppt.fel.cvut.cz

BibTex

@article{BUT150380,
  author="Lukáš {Dostál} and Jiří {Valenta} and David {Šimek}",
  title="Low-Voltage Circuit-Breaker Behavior under Overload Conditions",
  journal="Plasma Physics and Technology",
  year="2018",
  volume="5",
  number="1",
  pages="1--4",
  doi="10.14311/ppt.2018.1.1",
  issn="2336-2626",
  url="https://ppt.fel.cvut.cz"
}