INVESTIGATION OF A PLASMATRON WITH AN INTERELECTRODE INSERT,
Abstract
Results are reported of an experimental investigation of a plasmatron (plasma jet) in which cold air pumped into the gap between the insert and the output electrode was used as an insulator; as the effect of a single insert was found to be inadequate, a multiple insert was tried with mica insulation. The arc current-voltage characteristics and the air-enthalpy increase curve are presented, as well as a current-voltage characteristic of the nonselfmaintaining discharge between the positive column and the 4th insert. It is found that: (1) The interelectrode insert permits considerable increase in the arc length, arc voltage drop, and gas temperature, to provide a method for obtaining an ascending characteristic and for eliminating arc shunting: (2) The inserts connected to the power supply through isolating switches provide an additional possibility of adjusting the arc operation 'on the run,' with no adjustable power supply needed; (3) Gas supply distributed along the channel may provide an additional opportunity for improving arc characteristics. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 22, 1968
- Accession Number
- AD0682770
Entities
People
- G. Yu. Dautov
- M. I. Sazonov
- Yu. S. Dudnikov
Organizations
- National Air and Space Intelligence Center