Experimental Investigation Using Accelerated Aging Factors on Dielectric Properties of Transformer Insulating Oil

This article deals with the experimental analysis to measure the influence of temperature and accelerated aging factors, such as accelerated thermal aging factor and accelerated electrical aging factor, on dielectric properties, such as resistivity and dielectric dissipation factor or tan delta, of transformer oil. A number of vital decisions, such as oil reconditioning, oil replacement, etc., are based on these parameters. These parameters were determined experimentally for a fresh oil sample and for samples subjected to accelerated aging.