| 摘要 |
Method for diagnostics of insulation of electric equipment in which before determination of deflection of generalized measure of quality of insulation from norm of insulation condition noise voltage obtained undergoes high-frequency filtration in turns with noise sample resistive measure in frequency band of spectrum of heat noise with low frequency of repetition, one determines high-frequency spectral components that correspond to high-frequency noise voltage, this is amplified, modulated by amplitude and detected with squaring, with separation of low-frequency voltage of envelope of modulated voltage, this is amplified with synchronous detecting, one obtains rectified voltage from which one separates its direct component, by this one determines deflection of generalized measure of quality of insulation from norm. |
