Journal of System Simulation
Abstract
Abstract: A 3D finite element model for contact system of circuit breaker with oil dashpot is established. Two electrodynamic repulsion forces, the Holm force between contacts and the Lorentz force between the conductor arms, are analyzed. The current density distribution, magnetic intensity distribution and the forces of the contact and contact arm are obtained. Compared with the theoretical value, it shows that it is feasible to use this method to solve electrodynamic repulsion force. The main factors that influence the Holm force are analyzed. The simulation results show the changes of Holm force with different surface contact coefficient, contact pressure and material hardness. The structure of the contact system is optimized through ANSYS. More electrodynamic repulsion force can be got in short-circuit condition, thus assisting circuit breaker with oil dashpot for breaking.
Recommended Citation
Qiao, Yanhua; Su, Xiuping; and Dong, Tianying
(2018)
"Simulation and Optimization on Electrodynamic Repulsion Force of Contact System in Circuit Breaker with Oil Dashpot,"
Journal of System Simulation: Vol. 30:
Iss.
6, Article 22.
DOI: 10.16182/j.issn1004731x.joss.201806022
Available at:
https://dc-china-simulation.researchcommons.org/journal/vol30/iss6/22
First Page
2175
Revised Date
2016-11-28
DOI Link
https://doi.org/10.16182/j.issn1004731x.joss.201806022
Last Page
2182
CLC
TP391.9
Recommended Citation
Qiao Yanhua, Su Xiuping, Dong Tianying. Simulation and Optimization on Electrodynamic Repulsion Force of Contact System in Circuit Breaker with Oil Dashpot[J]. Journal of System Simulation, 2018, 30(6): 2175-2182.
DOI
10.16182/j.issn1004731x.joss.201806022
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