Title :
Breaking performance of a circuit breaker influenced by a permanent magnetic field at DC voltages up to 450 V
Author :
Schrank, Thorsten ; Wilkening, Ernst-Dieter ; Kurrat, Michael ; Gerdinand, Frank ; Meckler, Peter
Author_Institution :
Inst. of High Voltage Technol. & Electr. Power Syst., Tech. Univ. Braunschweig, Braunschweig, Germany
Abstract :
Circuit breakers have been equipped with external permanent magnets to investigate their breaking behavior at DC voltage. The breaking operations were conducted at voltages up to 450 VDC and prospective currents from 10 A to 5000 A. The time constants 0 ms, 1 ms and 3 ms were adjusted. In comparison, breaking operations without permanent magnet were conducted to analyze the influence of the permanent magnetic field. Additionally, the arcing behavior was observed with a high-speed camera.
Keywords :
circuit breakers; circuit-breaking arcs; permanent magnets; arcing behavior; breaking performance; circuit breakers; current 10 A to 5000 A; high speed camera; permanent magnetic field; time 1 ms; time 3 ms; voltage 450 V; DC voltage; circuit breaker; high-speed camera; permanent magnet;
Conference_Titel :
Electrical Contacts (ICEC 2012), 26th International Conference on
Conference_Location :
Beijing
Electronic_ISBN :
978-1-84919-508-9
DOI :
10.1049/cp.2012.0618
