Title :
Experimental investigation on high-current vacuum arc characteristics
Author_Institution :
Inst. of Electr. Power Eng., Poznan Tech. Univ., Poland
Abstract :
The experiments for high-current vacuum arcs were carried out in a vacuum chamber with contact material CuCr25 at different gap distance varied from 3 mm to 15 mm. In this paper, the voltage-current characteristics and influence of shield potential on the arc voltage and also the ion current characteristics are presented at arc current range from 0.6 kA to 7 kA. All results are related to the arc mode when no magnetic field (B=0) and axial magnetic field (B=const) is applied.
Keywords :
chromium alloys; copper alloys; electrical contacts; magnetic fields; vacuum arcs; 0.6 to 7 kA; 3 to 15 mm; CuCr; CuCr25 contact material; axial magnetic field; gap distance; high-current vacuum arcs; ion current characteristics; magnetic field; shield potential; vacuum chamber; Circuit testing; Contacts; Electrodes; Magnetic fields; Magnetic shielding; Magnets; Vacuum arcs; Vacuum systems; Vacuum technology; Voltage;
Conference_Titel :
Discharges and Electrical Insulation in Vacuum, 2002. 20th International Symposium on
Print_ISBN :
0-7803-7394-4
DOI :
10.1109/ISDEIV.2002.1027456
