Accurate sensing of power transformer faults from dissolved gas data using random forest classifier aided by data clustering method

N Haque, A Jamshed, K Chatterjee… - IEEE Sensors …, 2022 - ieeexplore.ieee.org
In this paper, a novel approach for accurate sensing of incipient faults occurring in power
transformers is proposed using dissolved gas analysis (DGA) technique. The Duval …

Reliable assessment of oil-paper insulation used in power transformer using concise dielectric response measurement

D Mishra, A Baral, S Chakravorti - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
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 …

A transformer condition recognition method based on dissolved gas analysis features selection and multiple models fusion

X Han, S Huang, X Zhang, Y Zhu, G An, Z Du - Engineering Applications of …, 2023 - Elsevier
Intelligent condition identification is the development trend of transformer condition
recognition, However, the existing intelligent condition recognition has the disadvantage of …

Evaluating the effects of temperature on moisture dynamics and relaxation mechanism in transformer oil-paper insulation

SK Ojha, P Purkait, S Chakravorti - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
The a ging of paper insulation in a transformer produces molecules, which ultimately gets
released into the oil. Reduced dielectric strength and increased conductivity are the …

Effects of temperature gradient induced aging and moisture distribution on dielectric response measurement for transformer insulation

J Liu, Q Wang, X Fan, Y Zhang… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Internal temperature distribution of an oil-immersed transformer is not uniform, resulting in
an axial moisture gradient. Thus, the internal insulating paper ages unevenly with the …

Influence of de-trapped charge polarity in sensing health of power transformer insulation

CM Banerjee, A Baral, S Chakravorti - IEEE Sensors Journal, 2022 - ieeexplore.ieee.org
Assessment of insulation condition by sensing and subsequent analysis of oil-impregnated
paper response at periodic intervals is necessary for reliable operation of transformers …

Estimation of moisture content in XLPE cable insulation using electric modulus

AK Das, S Chatterjee, AK Pradhan… - … on Dielectrics and …, 2022 - ieeexplore.ieee.org
In this article, a novel approach is proposed for accurate moisture content (MC) estimation of
cross-linked polyethylene (XLPE) insulation employing electric modulus. Additionally, the …

Sensing the thermal aging of epoxy alumina nano-composites using electric modulus

S Maur, S Chatterjee, N Haque, P Preetha… - IEEE Sensors …, 2021 - ieeexplore.ieee.org
In this contribution, a novel technique to accurately sense the thermal aging of the epoxy
alumina nano-composites employing complex electric modulus is proposed. To sense the …

Health assessment of oil-paper insulation using short duration frequency domain response

S Mishra, A Baral, S Chakravorti - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Cellulosic paper moisture is widely considered an important factor for assessing the
condition of transformer insulation. An increase in paper moisture accelerates the aging of …

Thermal Aging Characteristics of New Insulating Oil-Bamboo Paper Composite Material

Q Wang, R Wang, T Xu, S Tian, D Wei… - … on Dielectrics and …, 2024 - ieeexplore.ieee.org
Bamboo grows rapidly and can be continuously recycled, which is beneficial for
environmental protection. What's more, bamboo exhibits good pul** performance second …