Overheating and discharge fault identification for novel three-element mixed oil–paper insulation system based on new characteristic gas combination parameters
Sign Up to like & getrecommendations! Published in 2021 at "Electrical Engineering"
DOI: 10.1007/s00202-020-01211-3
Abstract: To support the safe operation of the novel three-element mixed insulation oil (TEMO) transformer, gas generation behaviors of the TEMO oil–paper insulation system under overheating faults and discharge faults were investigated. Results show that that… read more here.
Keywords: paper; paper insulation; oil; insulation ... See more keywords
Partial discharge damage mechanisms in laminated oil-paper insulation
Sign Up to like & getrecommendations! Published in 2019 at "Cellulose"
DOI: 10.1007/s10570-019-02470-5
Abstract: The insulation of oil-immersed paper bushing in a transformer bushing is mainly made of multi-layer paper insulation. This work investigates the whole process from discharge initiation to breakdown of an oil-paper insulation model. On the… read more here.
Keywords: paper insulation; paper; insulation; partial discharge ... See more keywords
Effect of magnetic field on partial discharge parameters in power cables and on the breakdown characteristics of impregnated paper insulation
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Electrostatics"
DOI: 10.1016/j.elstat.2018.11.001
Abstract: Abstract This article demonstrates that parameters of partial discharges in power cables and impregnated paper insulation breakdown characteristics vary in presence of grid-frequency alternating magnetic field. Experimental and theoretical demonstrations confirm that magnetic field affects… read more here.
Keywords: power cables; impregnated paper; field; paper insulation ... See more keywords
Assessment on Oil-Paper Insulation Aging of Transformer Based on Dielectric Response Model
Sign Up to like & getrecommendations! Published in 2019 at "Electric Power Components and Systems"
DOI: 10.1080/15325008.2019.1663454
Abstract: Abstract For nondestructive assessment of insulation aging in power transformer, dielectric response technology is usually used to evaluate the oil-paper insulation aging. In this paper, a quantitative evaluation method of insulation aging based on Davidson-Cole… read more here.
Keywords: oil paper; paper; paper insulation; insulation ... See more keywords
Recognition of Aging Stage of Oil–Paper Insulation Based on Surface Enhanced Raman Scattering and Kernel Entropy Component Analysis
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Access"
DOI: 10.1109/access.2019.2937912
Abstract: This study explores the method of applying surface enhanced Raman scattering (SERS) in diagnosing the aging stage of oil–paper insulation equipment in the power system, which provides access to the on-line mornitoring of electrical equipment.… read more here.
Keywords: oil paper; paper insulation; aging stage; oil ... See more keywords
Effect of cumulative moisture content on degradation of transformer paper insulation
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Dielectrics and Electrical Insulation"
DOI: 10.1109/tdei.2016.006006
Abstract: Nowadays, reliability of power system is of great importance. Therefore, the condition of transformers as the expensive and critical components of a power system should be monitored and assessed. The dominant factor that causes limitation… read more here.
Keywords: insulation; moisture content; paper insulation; paper ... See more keywords
Characterization of water-participant hydrogen bonds in oil-paper insulation investigated with terahertz dielectric spectroscopy
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Dielectrics and Electrical Insulation"
DOI: 10.1109/tdei.2019.008460
Abstract: In this study, aiming to characterize the dynamic polarization behavior of water molecules affected by hydrogen bonding with oil-paper insulation, we performed dielectric spectroscopy on oil-paper insulation with moisture contents of 0.4–4.7% in the terahertz… read more here.
Keywords: spectroscopy; insulation; paper insulation; oil paper ... See more keywords
Research on Time Saving and Accurate Testing Techniques for Frequency Domain Spectroscopy of Transformer Oil–Paper Insulation
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2022.3196448
Abstract: Frequency domain spectroscopy (FDS) is a nondestructive insulation test method that has been widely applied to the insulation evaluation of power transformers. However, a major shortcoming of conventional FDS is the long test duration. Existing… read more here.
Keywords: frequency domain; oil paper; spectroscopy; paper insulation ... See more keywords
Partial Discharge of Needle-Plane Defect in Oil-Paper Insulation under AC and DC Combined Voltages: Developing Processes and Characteristics
Sign Up to like & getrecommendations! Published in 2017 at "Energies"
DOI: 10.3390/en10111759
Abstract: Partial discharge (PD) behaviors of oil-paper insulation is distinctive in AC and DC combined electric fields in converter transformers from PD behaviors in pure AC or DC electric fields. The present study focuses on the… read more here.
Keywords: needle plane; oil paper; paper insulation;
A Non-Destructive Optical Method for the DP Measurement of Paper Insulation Based on the Free Fibers in Transformer Oil
Sign Up to like & getrecommendations! Published in 2018 at "Energies"
DOI: 10.3390/en11040716
Abstract: In order to explore a non-destructive method for measuring the polymerization degree (DP) of paper insulation in transformer, a new method that based on the optical properties of free fiber particles in transformer oil was… read more here.
Keywords: paper insulation; transformer oil; method; non destructive ... See more keywords