METHOD FOR REMOTE MONITORING OF TECHNICAL CONDITION OF ELECTRIC POWER FACILITIES Russian patent published in 2019 - IPC G01R31/00 G01R23/16 

FIELD: defectoscopy.

SUBSTANCE: invention relates to remote methods of noise and quasi-noise diagnostics of electric power (EP) defects and is intended for construction of industrial information and measuring systems for monitoring of technical state of such objects. In the method of remote monitoring of technical condition of EP objects first in equivalent operating conditions and using standard industrial equipment, measuring the radiation spectra of horizontal polarization radiation of a controlled and same type reference object of the same type at frequencies of combined action of flicker noise, white noise and quasi-harmonic components with frequencies of supply industrial circuit, its upper harmonics and resonant frequencies of sound oscillating circuits of equipment of said objects. Then, components of flicker and white noise are picked up in measured spectra and frequencies of separation of areas of dominating action of said noise components in spectra for reference and monitored objects are determined. Finally, the flicker noise intensity on the maximum frequency of the dominant action of the flicker noise component in the spectrum for the monitored object and the comparison of fixed flicker noise in the spectra for the reference and monitored objects is determined in said spectra to determine the complete defectiveness of the monitored object.

EFFECT: technical result consists in increase of sensitivity and reliability of diagnostics of complete defects of EP objects (and first of all objects with large occupied area).

1 cl, 2 dwg