Title :
State of water vapour in SF6 and several kinds of gases and its effect on partial discharge
Author :
Watabe, T. ; Itahashi, S. ; Mitsui, H. ; Sone, K.
Author_Institution :
Dept. of Electr. & Electron. Eng., Musashi Inst. of Technol., Tokyo, Japan
Abstract :
State of water vapor in SF6 is same as that in vacuum, but state of water vapor in CO2 is quite different from in vacuum. State of water vapour in SF6 does not change even though negative DC, positive DC and AC partial discharge occurs. Water cluster which disturbs partial discharge phenomena is not formed. Comparing the relation between area intensity and partial discharge inception voltage in all cases, partial discharge inception voltage is influenced by the amount of water vapour. However, these tendencies are different from the kinds of discharge and gases
Keywords :
SF6 insulation; humidity; partial discharges; AC discharge; SF6; area intensity; inception voltage; negative DC discharge; partial discharge; positive DC discharge; water vapour; Dielectrics; Electrodes; Gas insulation; Gases; Hydrogen; Partial discharge measurement; Partial discharges; Testing; Voltage; Water;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1995. Annual Report., Conference on
Conference_Location :
Virginia Beach, VA
Print_ISBN :
0-7803-2931-7
DOI :
10.1109/CEIDP.1995.483595
