Title :
Audible noise performance of 6-rail conductors on a 765-kV double circuit test line
Author :
Lee, Dong Il ; Kim, Jeong Boo ; Shin, Koo Yong ; Yang, Kwang Ho ; Ahan, Hee Sung ; Koo, Ja Yoon
Author_Institution :
Korea Electr. Power Res. Inst., Taejeon, South Korea
fDate :
7/1/1997 12:00:00 AM
Abstract :
To satisfy an annual rate load growth of approximately 10% per year, Korea Electric Power Corporation (KEPCO) has been studying the use of double circuit 765-kV transmission lines. Since this would be the first application in the world for such lines, a 765-kV test line was built near the Yellow Sea to gain experience with this higher voltage. A primary corona phenomena that is important for conductor selection is audible noise (AN) due to corona. This paper presents the results of long-term measurements of AN from the 765-kV double circuit test line using a bundle of 6-483.8 mm2 conductors at Korea Electric Power Research Institute´s (KEPRI) 765-kV test station. The analysis of the data shows that the 6-rail conductor bundle satisfies the AN criterion of 50 dB(A) under rainy weather conditions
Keywords :
acoustic noise; acoustic noise measurement; corona; overhead line conductors; power overhead lines; power transmission lines; 6-rail conductors; 765 kV; Korea Electric Power Corporation; Korea Electric Power Research Institute; Yellow Sea; annual rate load growth; audible noise performance; bundle conductors; double circuit test line; long-term measurements; primary corona phenomena; rainy weather conditions; Acoustic noise; Circuit testing; Conductors; Corona; Distributed parameter circuits; Electric variables measurement; Power measurement; Power transmission lines; Sea measurements; Voltage;
Journal_Title :
Power Delivery, IEEE Transactions on
