Title :
Breakdown characteristics of hydrofluorocarbons in gas phase
Author :
Sato, Shinji ; Tsukiji, Makoto ; Kimura, Ken
Author_Institution :
Adv. Technol. R&D Center, Mitsubishi Electr. Corp., Amagasaki, Japan
Abstract :
AC breakdown voltage (BDV) measurements were carried out for four kinds of hydrofluorocarbons (HFCs), CCl2F2, CClHF 2, and nitrogen in gas phase of 5 to 200 kPa using sphere-plate and a needle-plate gaps. It was found from comparison in BDV among these gases, that all HFCs are less than 60% of CCl2F2 and less than 80% of CClHF2 under the sphere-plate gap at 100 kPa. The BDV decreases with diminution of the number of halogen atoms per molecule. The order of BDV among all gases under the needle-plate gap is the same as the order under the sphere-plate gap
Keywords :
electric breakdown; electric strength; gaseous insulation; refrigerators; spark gaps; 5 to 200 kPa; AC breakdown voltage; HFCs; breakdown characteristics; hydrofluorocarbon gases; needle-plate gap; sphere-plate gap; Atomic layer deposition; Breakdown voltage; Electric breakdown; Electrodes; Gases; Hybrid fiber coaxial cables; Insulation; Nitrogen; Phase measurement; Refrigerants;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1996., IEEE 1996 Annual Report of the Conference on
Conference_Location :
Millbrae, CA
Print_ISBN :
0-7803-3580-5
DOI :
10.1109/CEIDP.1996.564545
