method of diagnostics of point switches

摘要

A method of diagnostics of point switches, at which the time dependence of the current flowing through the electric drive of a point switch is measured during its transfer in positive and negative position, the dependence is analyzed in time and frequency domain and defects of a point switch are determined according to known amplitude and frequency characteristics. The time dependence of the current after analog-digital conversion is subject to wavelet analysis, based on which diagnostics of the point switch is performed.