Title :
Pressurised-helium breakdown at very low temperatures
Author_Institution :
CEGB, Central Electricity Research Laboratories, Leatherhead, UK
fDate :
6/1/1972 12:00:00 AM
Abstract :
An extensive investigation of the electrical-breakdown behaviour of helium at very low temperatures has been carried out to assist the design and development of superconducting power cables. At very high densities, both liquid and gaseous helium showed an encouraging enhancement in electric strength when pressurised to a few atmospheres; conditioned values of breakdown fields then varied between 30 and 45 MV/m. Breakdown processes occurring over a wide range of helium densitites are briefly discussed.
Keywords :
electric breakdown; electric breakdown of gases; electric breakdown of liquids; electric strength; helium gas; liquid helium; power cables; superconducting devices; breakdown; design; electric strength; gaseous helium; helium; pressurised; superconducting power cables; very low temperatures;
Journal_Title :
Electrical Engineers, Proceedings of the Institution of
DOI :
10.1049/piee.1972.0158
