| 摘要 |
FIELD: measuring equipment.SUBSTANCE: periodic radiation of acoustic probe signal perpendicular to the surface of the controlled liquid in the insulated vessel is carried out. At that the period of acoustic harmonic oscillations excited by acoustic probe signal in insulated vessel with controlled liquid is preliminary calibrated in the function of the level of the controlled liquid and in the function of temperature of the controlled liquid, the forced converging acoustic harmonic oscillations are recorded by the receiving-emitting module, the temperature of the controlled liquid and the period of forced converging acoustic harmonic oscillations are measured, and according to the calibration characteristics the current value of the controlled liquid level is determined. The acoustic noise of operating power equipment is recorded by the receiving-emitting module in the time interval between the adjacent radiations of the acoustic probe signal, their spectral characteristics are analysed by the method and the technical condition of power equipment is evaluated, and also the acoustic noise arising as a result of the partial discharges is recorded by the receiving-emitting module in the time interval between the adjacent radiations of the acoustic probe signal, their intensity is analysed, and the condition of the insulation of power equipment is assessed.EFFECT: providing the accuracy and reliability of diagnostics of the technical condition of power equipment due to more complete control of the diagnostic parameters.3 cl, 1 dwg |
