Space charge evolution in oil-paper insulation for DC cables application

Ciobanu, Romeo Cristian; Schreiner, Cristina; Pfeiffer, Wolfgang; Baraboi, B.

doi:10.1109/icdl.2002.1022759

Cited by 22 publications

(12 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Morshuis and Jeroense [9] made some important space charge tests and discussions on oil-impregnated insulation paper. Ciobanu in 2002 suggested that the evolution of PEA derived parameters, such as charge density, apparent trap-controlled mobility and variation of trap depth distribution, can be successfully used for promoting criteria for the best choice of oil-paper insulation technology for DC cable applications [10]. Since 2008, much more research on space charge behaviors in oil-paper insulation has been reported.…”

Section: Research Progressmentioning

confidence: 99%

See 1 more Smart Citation

Progress of Space Charge Research on Oil-Paper Insulation Using Pulsed Electroacoustic Techniques

et al. 2016

View full text Add to dashboard Cite

This paper focuses on the space charge behavior in oil-paper insulation systems used in power transformers. It begins with the importance of understanding the space charge behavior in oil-paper insulation systems, followed by the introduction of the pulsed electrostatic technique (PEA). After that, the research progress on the space charge behavior of oil-paper insulation during the recent twenty years is critically reviewed. Some important aspects such as the environmental conditions and the acoustic wave recovery need to be addressed to acquire more accurate space charge measurement results. Some breakthroughs on the space charge behavior of oil-paper insulation materials by the research team at the University of Southampton are presented. Finally, future work on space charge measurement of oil-paper insulation materials is proposed.

show abstract

Section: Research Progressmentioning

confidence: 99%

“…A xˆT ABˆe´α B xˆT BCˆe´α C xˆT CD (10) where, α A is the attenuation factor of layer A, α B is the attenuation factor of layer B, α C is the attenuation factor of layer C. If the dispassion factor is taken into consideration, the final pressure wave P 1 2 can be calculated as follows:…”

Section: Sound Wave Propagation In Multi-layer Oil-papermentioning

confidence: 99%

Progress of Space Charge Research on Oil-Paper Insulation Using Pulsed Electroacoustic Techniques

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Ciobanu et al, analyzed the space charge evolution in oil-paper insulation, and associated the mobility phenomena with the mineral content of cable paper. They concluded that the charges parameters derived from the PEA measurements, such as, charge density, apparent trapcontrolled mobility and variation of trap depth distribution, can be successfully used towards promoting criteria for the best choice of oil-paper insulation technology for dc cables application [6].…”

Section: Introductionmentioning

confidence: 99%

Space charge behavior in multi-layer oil-paper insulation under different DC voltages and temperatures

Tang

Chen

et al. 2010

IEEE Trans. Dielect. Electr. Insul.

153

View full text Add to dashboard Cite

Oil-paper as a reliable insulation system is widely used in power transformers and cables. The dielectric properties of oil-paper insulation play an important role in the reliable operation of power equipment. However, the formation and dynamics of space charge can affect the performance of insulation material. In this paper, space charge in oil-paper insulation system has been investigated using the pulsed electroacoustic (PEA) technique. A series of measurements were carried out when the insulation system was subjected to different applied voltages at different temperatures. Charge behavior in the insulation system has been analyzed and the influence of temperature on charge dynamics was discussed. The test results show that homocharge injection takes place under all the test conditions, the applied dc voltage mainly effect the amount of space charge, while the temperature has greater influence on the distribution and mobility of space charge inside oil-paper samples.

show abstract

“…A very simple but highly approximate expression for mobility, which is extensively described in [5], is given below:…”

Section: Trap Control Mobilitymentioning

confidence: 99%

Modification of space charge pattern and charge mobility of Low Density Polyethylene (LDPE) in the presence of crosslinking byproducts

Hussin

2009

2009 IEEE 9th International Conference on the Properties and Applications of Dielectric Materials

View full text Add to dashboard Cite

Abstract:The formation of space charge in Crosslinked Polyethylene (XLPE) cable has always been related to the byproducts such as acetophenone, α-methylstyrene and cumyl alcohol. In this paper, the argument is to be justified. Space charge formation in cumyl alcohol soaked Low Density Polyethylene (LDPE) is presented and compared with that of acetophenone and α-methylstyrene soaked LDPE. Cumyl alcohol causes charge accumulation of both charge polarities with heterocharges appeared when the sample is stressed at low voltage. The total charge accumulated as well as the charge decay in the clean LDPE sample are then compared to that of the chemicals soaked LDPE films. Charge mobility values in all samples were calculated from the decay characteristics and the results reveal that the byproduct chemicals accelerate the decay process in LDPE film, due to their high charge mobility. Since the byproduct chemicals change the space charge decay behavior of LDPE, it is suggested that the chemicals modify the trapping characteristics of LDPE. This is possible either by superseding the deep traps in insulator with shallow traps from the chemicals, or simply adding up the number of shallow traps in the insulator.

show abstract

Space charge evolution in oil-paper insulation for DC cables application

Cited by 22 publications

References 5 publications

Progress of Space Charge Research on Oil-Paper Insulation Using Pulsed Electroacoustic Techniques

Progress of Space Charge Research on Oil-Paper Insulation Using Pulsed Electroacoustic Techniques

Space charge behavior in multi-layer oil-paper insulation under different DC voltages and temperatures

Modification of space charge pattern and charge mobility of Low Density Polyethylene (LDPE) in the presence of crosslinking byproducts

Contact Info

Product

Resources

About