Some Aspects of Stress Distribution and Effect of Voids Having Different Gases in MV Power Cables

Avinash, S.; Rajagopala, K.

doi:10.9790/1676-561622

Cited by 12 publications

(7 citation statements)

References 9 publications

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“…In Past studies, electric field is defined as a source of corona around conductor imperfect partial discharge and early insulation failure. by assuming there is no free surface change at the insulation surface and void boundary, Internal and External electric field of cylindrical void is calculated by following equations [26].…”

Section: Power Cable Sumilation Modelmentioning

confidence: 99%

Nanocomposites Impacts on Electrical Field Distribution Inside XLPE Power Cables

Thabet

Fouad²,

Abdel-Moamen

et al. 2021

International Journal of Applied Energy Systems

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This paper presents the electrical field stress in new cross-linked polyethylene (XLPE) nanocomposites in case of containing different partial discharges under high voltages. It has been investigated on the effect of variant nanoparticles for controlling on the electrical field distribution inside single-core power cables insulation, especially, in case of presence voids of air, water and cupper impurities with different shapes (cylinder, sphere and ellipse) inside insulation of single-core power cables. The electrical field distribution in power cable insulation and inside voids has been measured by finite element method (FEM). This research success to design different patterns of Crosslinked polyethylene insulation materials for enhancing the dielectric properties within void and inside insulator according to type and concentration of nanoparticles.

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Section: Power Cable Sumilation Modelmentioning

confidence: 99%

Nanocomposites Impacts on Electrical Field Distribution Inside XLPE Power Cables

Thabet

Fouad²,

Abdel-Moamen

et al. 2021

International Journal of Applied Energy Systems

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Section: Mathematical Modelmentioning

confidence: 99%

“…Internal and External electric field of spherical void is calculated by following equations, [5], [19], [20].…”

Section: Mathematical Modelmentioning

confidence: 99%

“…With the calculation of the magnitude of the electric field intensity and its spatial distribution within the cable, it is possible to set a limit on the voltage rating for a given insulation thickness, or alternatively [4]. The main dissolution products were found to be hydrogen, carbon monoxide, methane and carbon dioxide which are produced in a power cable when exposed to PD activity [5]. In recent years, the progress of nanotechnology science is fast for innovate new insulation materials that have advanced physical and electrical properties [6][7][8][9][10][11][12][13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

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High Performance of Power Cables Using Nanocomposites Insulation Materials

Fouad

Thabet

Ahmed

et al. 2021

IJEEI

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Partial discharges occur the biggest failure problem in power cable insulation due to distortion of electrical stress. In this paper, it has been investigated on the effect of spherical nanoparticles of Barium titanate (BaTiO3) and Clay for enhancing electrostatic field distribution in single and three-core power cables. It has been applied new strategies of nanotechnology techniques for designing innovative polyvinyl chloride insulation materials by using nanocomposites and multi-nanocomposites. Moreover, it has been studied the electrostatic field distribution within power cable nanocomposites insulation in presence of air voids, water voids and cupper impurity voids. The electrostatic field distribution in power cable insulation has been calculated by finite element method (FEM). A comparative study has been investigated on the effect of nanocomposite insulation for enhancing electric field stress in power cables.

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“…Diverse materials have been employed as insulation in high-voltage underground cables, including paper-oil insulation, cross-linked polyethylene (XLPE), and ethylene propylene rubber (EPR) [1], [2], [4], [5]. The presence of voids, bubbles, or defects in the insulating material can lead to the occurrence of partial discharge [2], [4], which in turn degrades the dielectric properties of the insulation [6]- [9]. Partial discharge (PD) significantly contributes to the breakdown of cable insulation [9], [10].…”

Section: Introductionmentioning

confidence: 99%

A Review on the Analysis of Electrostatic Stress in High Voltage Underground Cable Using Finite Element Method

2023

IRJMETS

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This study delves into the critical role of high-voltage underground cables in power transmission. These cables consist of multiple layers and conductors, typically made of copper or aluminum, and are insulated to endure various stresses. Insulation voids, bubbles, and defects within the material can cause partial discharge, impairing dielectric properties. Analyzing a cross-linked polyethylene (XLPE) high-voltage cable with copper conductor, this work employs numerical methods to investigate stress distribution. Finite Element Method (FEM) proves efficient for complex geometries, revealing how void size, location, shape, insulation properties, and operating voltage influence stress. Results show that void size affects maximum stress, while distance from conductor surface reduces stress. Cylindrical voids induce more stress than spherical or elliptical ones. Increasing insulation permittivity amplifies void stress, and higher operating voltages elevate stress, highlighting key factors for cable design and reliability assessment. The study underscores FEM's value in cable stress analysis, offering insights crucial for ensuring durable power transmission infrastructure.

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Some Aspects of Stress Distribution and Effect of Voids Having Different Gases in MV Power Cables

Cited by 12 publications

References 9 publications

Nanocomposites Impacts on Electrical Field Distribution Inside XLPE Power Cables

Nanocomposites Impacts on Electrical Field Distribution Inside XLPE Power Cables

High Performance of Power Cables Using Nanocomposites Insulation Materials

A Review on the Analysis of Electrostatic Stress in High Voltage Underground Cable Using Finite Element Method

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