Title :
Domain Coupling of Multi-Physical Parameters for EHV SF6 Circuit Breaker
Author :
Cao, Yundong ; Liu, Xiaoming ; Liu, Yanju
Author_Institution :
Sch. of Electr. Eng., Shenyang Univ. of Technol., Shenyang, China
Abstract :
Coupling of multi physical parameters in extra high voltage SF6 circuit breaker (EHV SF6 CB) has been investigated. A 2D combined mathematical model of electric field, flow field and k - ¿ turbulent flow was developed, and the coupling condition of multi physical field of CB was established. And the computation has been carried out for a 500 kV 1-break SF6 CB. The multi physical parameters and the electrical characteristics varying with the interrupting course have been investigated. In addition, the dielectric recovery characteristics (DRC) of the 500 kV 1-break SF6 CB has been obtained, and the visualization of the breaking course has been realized.
Keywords :
SF6 insulation; circuit breakers; high-voltage techniques; numerical analysis; 2D combined mathematical model; dielectric recovery characteristics; domain coupling; extra high voltage SF6 circuit breaker; multiphysical parameters; numerical simulation; voltage 500 kV; Aerodynamics; Circuit breakers; Coupling circuits; Dielectrics; Electric variables; Mathematical model; Navier-Stokes equations; Physics computing; Sulfur hexafluoride; Voltage;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4812-8
Electronic_ISBN :
978-1-4244-4813-5
DOI :
10.1109/APPEEC.2010.5449006
