Bipolar HVDC Transmission System Study Between ±600 kV and ±1200 kV:Insulation Studies

摘要

In the last 20 years, a considerable amount of work has been devoted to investigating the air insulation of EHV and UHV alternating current (ac) systems whereas direct current (dc) systems have received very little attention. In an attempt to rectify this situation, EPRI has sponsored an extensive research program conducted at IREQ's high-voltage laboratory under contracts RP430-1 and RP430-2 for studying air insulation, corona, and electric field problems related to EHV and UHV dc transmission. The present report deals only with the part of this program concerning air insulation.