With the development of intelligent power system

the detection requirements of the operation state of key equipment in power system are increasing. Acoustic detection technology has become a research hotspot in the field of power system fault detection because of its nondestructive detection

high accuracy

wide application prospect and convenient location. Firstly

the mechanism of acoustic detection technology is described

and the application architecture of acoustic detection technology in power system is summarized. Secondly

the key problems and research status of acoustic detection technology for power equipment fault are summarized from the aspects of sound source signal acquisition

fault diagnosis

fault location and typical application scenarios. Finally

the limitations of acoustic detection technology for power equipment fault are analyzed

and four possible research directions of acoustic detection technology are extracted.