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
Parameters Identification and Application of Equivalent Circuit at Low Frequency of Oil-Paper Insulation in Transformer
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Access"
DOI: 10.1109/access.2020.2992681
Abstract: The low frequency section of frequency domain spectroscopy (FDS) of oil-paper insu- lation system can effectively reflect the ageing state and moisture of the oil-immersed paper. Meanwhile, steady-state insulation resistance is the one of indexes… read more here.
Keywords: oil paper; paper; low frequency; frequency ... See more keywords
Effect of Electric-Field Components on the Flashover Characteristics of Oil-Paper Insulation Under Combined AC-DC Voltage
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Access"
DOI: 10.1109/access.2022.3233082
Abstract: Flashover characteristics are closely related to the electrical field distribution on the surface of oil-paper insulation. In this study, the effects of electrical field and DC voltage components on the creepage flashover characteristics of oil-paper… read more here.
Keywords: electric field; oil paper; component; voltage ... 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
Raman spectrum characteristics and aging diagnosis of oil-paper insulation with different oil-paper ratios
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Dielectrics and Electrical Insulation"
DOI: 10.1109/tdei.2020.008938
Abstract: In this paper, a method of aging diagnosis under different oil-paper ratios is proposed by investigating the accelerated thermal aging data with different oil-paper ratios. Aged oil-paper insulation samples with oil-paper ratios of 10:1, 15:1… read more here.
Keywords: oil paper; paper; different oil; oil ... See more keywords
Space Charge Characteristics of Electrothermally Aged Oil-Paper Insulation Under Slightly Nonuniform Electric Field
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Dielectrics and Electrical Insulation"
DOI: 10.1109/tdei.2023.3266317
Abstract: To study the change characteristics of space charge in oil-paper insulation under a slightly nonuniform electric field and a uniform electric field, the existing space charge measuring device was improved, and sphere- and column-plate electrode… read more here.
Keywords: electric field; oil paper; space charge; charge ... 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;