Electrical corona in liquid nitrogen
- Resource Type
- Conference
- Authors
- Takahashi, Yuzo
- Source
- Conference on Electrical Insulation & Dielectric Phenomena - Annual Report 1974 Electrical Insulation & Dielectric Phenomena - Annual Report 1974, Conference on. :577-584 Oct, 1974
- Subject
- Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Power, Energy and Industry Applications
Corona
Liquids
Electrodes
Nitrogen
Discharges (electric)
Luminescence
Needles
- Language
Liquified gases have simpler molecular structure than hydrocarbon liquids. Corona discharge in liquid dielectrics is often accompanied by bubbling. The bubbles in liquified gas may be formed by vaporization of the liquid, while those in hydrocarbon liquid are formed by rupture of the molecular bonds. Therefore, characteristics of corona discharge in liquified gases are expected to be less complex than those in hydrocarbon liquids. The characteristics would give instructive suggestions for the study of corona discharge and breakdown in insulating oils. In the present investigation we observed ac (50 Hz) and dc corona and bubbling in liquid nitrogen, and a luminescence in the liquid after flashover across the gap.