Detection of water content in transformer oil using multi frequency ultrasonic with PCA-GA-BPNN

Z Yang, Q Zhou, X Wu, Z Zhao, C Tang, W Chen - Energies, 2019 - mdpi.com
The water content in oil is closely related to the deterioration performance of an insulation
system, and accurate prediction of water content in oil is important for the stability and …

Estimation of transformer parameters from nameplate data by imperialist competitive and gravitational search algorithms

HA Illias, KJ Mou, AHA Bakar - Swarm and Evolutionary Computation, 2017 - Elsevier
Accurate determination of parameters in power transformer equivalent circuit is important
because it can influence the simulation results of condition monitoring on power …

Highly sensitive thin‐film capacitive sensor for online moisture measurement in transformer oil

T Islam, Z Tehseen, L Kumar - IET Science, Measurement & …, 2020 - Wiley Online Library
This study describes a low‐cost sensor‐based scheme for online moisture measurement in
transformer oil. Considering a harsh environment, moisture measurement of oil at ppm level …

Reliability assessment of the results of periodic monitoring of the transformer oils condition

O Shutenko, S Ponomarenko - 2020 IEEE 4th International …, 2020 - ieeexplore.ieee.org
The paper presents a method to assess the reliability of the results of periodic monitoring of
transformer oils. The verification of method efficiency by analysing real operating data is …

Optical transparency of paper as a function of moisture content with applications to moisture measurement

AF Forughi, SI Green, B Stoeber - Review of Scientific Instruments, 2016 - pubs.aip.org
Accurate measurement of the moisture content of paper is essential in papermaking and is
also important in some paper-based microfluidic devices. Traditional measurement …

[HTML][HTML] Aging characterization of thermally aged transformer paper based on its reflectance

N Seifaddini, I Fofana, NR Kandala, KS Lim, CW Ooi… - Results in Optics, 2024 - Elsevier
In this contribution, a simple non-destructive characterization of aging degree of oil-paper
insulation materials based on the reflectance is proposed. Samples of cellulose Kraft paper …

Modelling of breather for transformer health assessment

S Kumar, T Islam, KK Raina - IET Science, Measurement & …, 2017 - Wiley Online Library
A mathematical model for estimating the moisture content in silica‐gel inside a breather of a
power transformer has been developed. The model equations are derived considering the …

Moisture estimation in power transformer oil using acoustic signals and spectral kurtosis

VCMN Leite, GFC Veloso, LEB da Silva… - Measurement …, 2016 - iopscience.iop.org
The aim of this paper is to present a new technique for estimating the contamination by
moisture in power transformer insulating oil based on the spectral kurtosis analysis of the …

Paper drying: experimental studies on the influence of dryer fabric

AF Forughi - 2018 - open.library.ubc.ca
This research is an experimental investigation on paper drying that primarily focuses on the
effects of the dryer fabric on the drying process of paper. A novel method for moisture …

Novel Method Using Transformer Moisture Equilibrium for Removal of Absorbed Moisture from Cellulose Paper Insulation in Power Transformers

K Swamynathan, N Sthalasayanam, M Sridevi… - Journal of The Institution …, 2024 - Springer
Moisture's effect on the ageing of Kraft insulation paper is well established theory. The
removal of moisture from transformer paper insulation is a time-consuming task. Although …