Study on Phase Spacing of Ultra-High Voltage AC Transmission Lines in Extra-heavy Ice Areas
This paper conducts an analysis and study on the electrical clearance and electromagnetic environment limits of ultra-high voltage alternating current (UHVAC)transmission line conductors in 40 mm and 60 mm extra-heavy ice areas. It proposes a calculation method and conclusions for the phase spacing of 1000 kV UHVAC transmission line conductors. The study shows that the phase spacing of tension towers is primarily controlled by the electromagnetic environment, which is mainly influenced by audible noise.Phase spacing (horizontal space)is more sensitive to the electromagnetic envi-ronment than ground clearance (vertical space).The calculation method and conclusion discussed can provide reference for design of UHVAC transmission lines.
万方数据
维普
