| 摘要 |
Method for reveal of defects in insulation of high-voltage oil-filled equipment by results of chromatographic analysis of gases dissolved in oil at which one determines presence of systematic increase of concentrations of gases dissolved in oil compared to results of several previous analyses, with determination of presence of simultaneous growth of concentrations of gases hydrocarbon line and hydrogen (CH, CH, CH, CHand H) in object being diagnosed, with determination of presence of such increase in next object, decision on presence of defect is made in case if there is found substantial, simultaneous, systematic increase of concentrations of gases dissolved in oil in the object being diagnosed without presence of such increase in the next one irrespectively of the fact if there is excess over limiting values of concentrations of gases of not. |
