Title :
Laser triggered high voltage air gap investigation at intermediary pressures
Author :
Mendonca, E. ; Pignolet, Pascal
Author_Institution :
Lab. de Genie Electr., Pau Univ., France
Abstract :
Nd:YAG laser triggered centimetric air gap in a homogeneous electric field and for pressures ranged between 0.5 and 5 bar is studied. The laser intensity threshold dependance is investigated and the influence of optically enhanced collisional processes is pointed out. The initial electron density threshold necessary to initiate the gap breakdown is evaluated. Breakdown transient voltage and current are measured and the formative time lag dependance on reduced field and laser intensity is analyzed
Keywords :
air gaps; 0.5 to 5 bar; Nd:YAG laser triggered centimetric air gap; breakdown transient voltage measurement; formative time lag dependance; gap breakdown initiation; high voltage air gap; homogeneous electric field; initial electron density threshold; intermediary pressures; laser intensity threshold; optically enhanced collisional processes; reduced field intensity; reduced laser intensity;
Conference_Titel :
High Voltage Engineering, 1999. Eleventh International Symposium on (Conf. Publ. No. 467)
Conference_Location :
London
Print_ISBN :
0-85296-719-5
DOI :
10.1049/cp:19990729
