UHV Equipment Specifications, Circuit Breakers and Interrupting Phnomena, Vacuum Switchgear at Transmission Voltages, DC Interruption and DC Switchgears, Controlled Switching

摘要

MAJOR RESULTS ON UHV INVESTIGATIONSCIGRE UHV project provided excellent opportunities for optimising both the size & cost of UHV equipment.The CIGRE UHV project has been completed in coordination by several SCs such as WG B3.22/29 on-site testing procedures (TB 400, TB562), WG C4.306 on UHV insulation coordination (TB 542) and AG D1.03 on Very Fast Transient Phenomena (TB 519) beside WG A3.22 and A3.28 on Substation equipment specifications (TB362, TB456, TB570).