运行变压器、电抗器振动噪声及局部放电超声波信号的频谱分析

Analysis of the Frequency Spectra of Acoustic Signals in On line Power Transformer and Reactor

本文研究了现场变压器、电抗器的噪声及局部放电超声信号的频谱特性及其区别,文中列举了有关现场实测并给出了有关频谱图,本文表明局部放电超声波信号与变压器电抗器运行的噪声频率分布有明显的区别。

This paper presents the acoustic frequency spectra of PD sources and disturbance sources in on-line transformer and reactor. It is shown that the spectra of the PD signals and disturbance signals are obviously different.