• Title/Summary/Keyword: HUM

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Electrical and Mechanical Noise Study of the 765kV Transmission Line (765kV 송전선로의 전기적 및 기계적 소음고찰)

  • Lee,
    • Journal of KSNVE
    • /
    • v.6 no.1
    • /
    • pp.89-95
    • /
    • 1996

  • If the transmission line voltage is greater than 500kV, audible noise (AN) and hum noise (HN) due to corona discharges on the conductor would be an important design factor for the conductor selection of transmission line. Also there is an aeolian noise: wind noise(WN) from the tower and the conductor due to wind. This paper presents the results of a statistical analysis of audible noise, hum noise, aeolian noise of 6-480mm$^{2}$ conductor bundle in KEPRI 765kV Test Transmission Line which was constructed to develop 765kV double circuit AC transmission line for the first time in the world. The result of the analysis shows that 6-480mm$^{2}$ conductor bundle and tower satisfy configuration the audible noise design criterion of 50dB(A).

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