The high voltage power transformer is the critical element of the power system, which
requires continuous monitoring to prevent sudden catastrophic failures and to ensure an …

This manuscript presents a comprehensive literature review with the aim to provide readers
a reference document with up-to-date information on the field of methanol use as a chemical …

The paper used to insulate the windings of power transformers is mostly made from wood
pulp, a cellulosic material. Over decades the paper is slowly attacked by water, oxygen, oil …

Frequency domain dielectric response technology is widely used to detect the major
insulation status of transformers. The influence of the test excitation amplitude on the …

This paper presents a study on the characterization of aging of transformer oil–pressboard
insulation. Traditional and modern diagnostic tools and techniques were used to investigate …

A post mortem analysis of scrapped transformers provides an opportunity to directly
measure the properties of in-service aged paper insulation. Investigations on 10 scrapped …

One of the cellulose insulation in high voltage power transformers is paper, and it is widely
used in transformers due to low cost and excellent physical/electrical properties. However …

In this work we present two new models based on Evolving Multivariable Gaussian
approach and on the Set-Membership/Enhanced Set-Membership adaptive filtering …

Measuring the furan concentration in transformer oil is one of the most common methods of
monitoring and evaluating insulation paper and estimating its degree of polymerization (DP) …

The stable operation of transformers is an important guarantee of power system security.
The temperature distribution of main insulation is different in long‐term operation. The …