The aging of transformer oil–paper insulation (OPI) contributes significantly to transformer
failure and reduced service life. Therefore, reliable and precise evaluation of the aging …

Oil-impregnated paper is usually the preferred choice of insulation in power transformers.
The working life of any transformer depends on its insulation condition. The paper …

Debye and its modified models are widely used to explain the relaxation polarization
process in dielectrics at present. However, such models require prior knowledge of the …

The a ging of oil-impregnated paper insulation under high thermal stresses leads to
cellulose chain scissions. These chain scission reactions produce organic acids …

Accurate identification of the aging state of insulation is crucial for preventing potentially
catastrophic failures in transformers. Dielectric frequency domain spectroscopy (FDS) has …

Power outages can cause harm to both society and individual health. Among the crucial
elements of power systems, power transformers play a vital role, and their failures can lead …

The frequency‐domain dielectric spectroscopy (FDS) of humid insulating paper has been
measured at different temperatures. The data show three independent dielectric processes …

Oil-paper insulation is the “heart” of power transformer, and frequency domain spectroscopy
(FDS) is an efficient method to evaluate the insulation state of it. Nevertheless, traditional …

Frequency domain dielectric spectroscopy is widely used in the moisture assessment of
transformer oil-paper insulation. However, the dielectric mechanism of oil-paper insulation …

Frequency-domain spectroscopy (FDS)-based methods are rarely reported for aging
evaluation of nonuniform aged transformer insulation, in part due to the unavailability of the …