Title :
Measurement of ion parameters during a forced switching-off of current in vacuum
Author :
Klajn, Antoni ; Datczuk, Artur ; Wróblewski, Zbigniew
Author_Institution :
Inst. of Electrical Power Eng., Tech. Univ. Wroclaw, Poland
Abstract :
The paper presents the results of ion parameters measurement during a forced current commutation of diffuse vacuum arc. A sinusoidal half-wave current was interrupted near its amplitude of 400 A with a counterpulse of rise velocities 2.4 A/μs and 32 A/μs. In this way, a forced switching-off of DC current was modelled. A retarding field analyser was used for ion parameter measurement of the forced commutation process. Ion potentials up to 100 V were measured at the current zero moment and the average decay times of ions after current zero were in the range from a few microseconds up to 30 μs, as a function of observed ion potential
Keywords :
charge measurement; circuit-breaking arcs; commutation; electric breakdown; switchgear testing; switching; vacuum arcs; vacuum breakdown; vacuum insulation; vacuum interrupters; 100 V; 400 A; DC current; counterpulse; current zero moment; diffuse vacuum arc; forced current commutation; ion decay times; ion parameters measurement; retarding field analyser; sinusoidal half-wave current interruption; switching-off; Circuits; Contacts; Current measurement; Electric breakdown; Force measurement; Switches; Vacuum arcs; Vacuum breakdown; Vacuum systems; Voltage;
Conference_Titel :
Discharges and Electrical Insulation in Vacuum, 1996. Proceedings. ISDEIV., XVIIth International Symposium on
Conference_Location :
Berkeley, CA
Print_ISBN :
0-7803-2906-6
DOI :
10.1109/DEIV.1996.545364
