Theoretical Basis of Determination of Corona Discharge Coordinates by Acoustic Radiation

The issues of developing a method for determining the coordinates of a corona discharge from its acoustic radiation are considered. Theoretical foundations for constructing a three-dimensional acoustic wave pressure field are presented. For constructing a three-dimensional acoustic field, the parameters of a corona discharge as a sound source are described, namely, the acoustic intensity curves for the “source—corona discharge” were taken, which made it possible to calculate the pressure fields of the acoustic field for an insulator (point source) and for a wire (linear source). The isolines of the acoustic field of equivalent corona discharge sources are calculated. The acoustic field is constructed for different harmonic components (50; 150; 250 Hz). The location of the source of the acoustic field is determined from the isolines of the pressure field of the acoustic wave. This allows to create a method for finding the coordinates of the corona discharge source and adapt it for diagnostic devices.