Mathematical Simulation of Arc Suppression by Devices with a Liquid–Metal Contact
- Autores: Kireev K.V.1
- 
							Afiliações: 
							- Samara State Technical University
 
- Edição: Volume 89, Nº 4 (2018)
- Páginas: 261-264
- Seção: Article
- URL: https://journals.rcsi.science/1068-3712/article/view/231425
- DOI: https://doi.org/10.3103/S1068371218040089
- ID: 231425
Citar
Resumo
The problem of simulation of the arc-suppression process in the case of switching off high-current dc circuits by devices with a liquid–metal working medium is considered. Since devices with a liquid–metal contact are designed to switch specific power circuits, the possibility of joint consideration of the electrical circuit and the switch is used to optimize the shutdown process. The obtained mathematical model allows with the use of the known temperature profile of the dynamic arc to calculate the main dynamic characteristics of the arc discharge, such as current, voltage, conductivity, temperature, and the trunk conductor radius. It is shown that, if the real temperature profile of the arc is not known, calculation of such integral characteristics of the arc-suppression process as current, resistance and intensity of the arc trunk can be carried out with the use of an equivalent temperature profile. On the basis of the obtained mathematical model, a calculation methodology is developed for the process of circuitry cutout by an apparatus with liquid–metal contacts with a change in the topological structure of the circuit being switched off during the commutation process.
Palavras-chave
Sobre autores
K. Kireev
Samara State Technical University
							Autor responsável pela correspondência
							Email: journal-elektrotechnika@mail.ru
				                					                																			                												                	Rússia, 							Samara, 443100						
Arquivos suplementares
 
				
			 
						 
						 
						 
						 
					 
				 
  
  
  
  
  Enviar artigo por via de e-mail
			Enviar artigo por via de e-mail  Acesso aberto
		                                Acesso aberto Acesso está concedido
						Acesso está concedido Somente assinantes
		                                		                                        Somente assinantes
		                                					