Insulation cellulose paper is a basic measure for a power transformer's remaining useful life,
and its advantageous low cost, electrical, and mechanical properties have made it an …

Polychlorinated biphenyls (PCBs) are industrial chemicals that are designated as persistent
organic pollutants. They were used for the production of multifarious products but their …

The aging of power transformers causes several defects and damages in the insulating
system, especially in the insulating paper. The degradation of the insulating paper …

Capturing dibutyl phthalate (DBP) impurities from transformer oils and purifying them is
crucial for maintaining long-term sustainable transformer operation. Furthermore, this …

Investigating and enhancing the accuracy of widespread dissolved gas analysis (DGA)
techniques based on IEC-TC10 and related databases was implemented. The current work …

The results of analysis of transformer oils ageing under long-term operation conditions for
231 transformers of 110 kV voltage are presented. The procedure of statistical processing of …

The continuity of transformer operation is very necessary for utilities to maintain a continuity
of power flow in networks and achieve a desired revenue. Most failures in a transformer are …

A multiple linear regression model is proposed for early detection of transformers with
accelerated oil aging. The model has been trained and its relevance has been proved. The …

The dielectric loss factor is an essential electrical parameter used to evaluate the quality of
transformer oil and judge the operation status of transformers. In this work, a new …

Introduction. Ensuring the operational reliability of power transformers is an urgent task for
the power industry in Ukraine and for most foreign countries. One of the ways to solve this …