Results 31 to 40 of about 5,527,883 (197)

Review of Edge-based Image Segmentation on Electrical Tree Classification in Cross-linked Polyethylene (XLPE) Insulation

open access: yesJournal of Physics: Conference Series, 2021
Abstract Electrical trees are the degradation events most linked with partial discharge (PD) activity in cross-linked polyethylene (XLPE) insulation of high voltage (HV) cables. To investigate tree structures and forms, study of electrical tree structures for morphological analysis often carried out using optical microscopy.
M A M Isa   +8 more
openaire   +1 more source

Effect of Graphene Coating on Space Charge Characteristic of XLPE and Semiconductive Layer at Different Temperatures

open access: yesIEEE Access, 2019
DC cross-linked polyethylene (XLPE) power cables are being used recently for HV/EHV applications, the reliability of which is claimed to be significantly affected by space charge accumulation in the insulating material.
Zhipeng Lei   +8 more
doaj   +1 more source

Analysis of Space Charge Formation in LDPE in the Presence of Crosslinking Byproducts [PDF]

open access: yes, 2012
Cross-linking byproducts are suspected to be the main contributing factor in space charge formation observed in XLPE. To investigate the mechanism behind this phenomenon, low density polyethylene was soaked into three main crosslinking byproducts ...
Hussin, Nuriziani, Chen, George
core   +1 more source

Correlation Between Thermal Parameters and Morphology of Cross-Linked Polyethylene

open access: yesIEEE Access, 2020
This paper reveals a correlation between morphology and thermal parameters on cross-linked polyethylene (XLPE) cable with different insulating states. Several cables were selected to detect the physicochemical and thermal parameters of the XLPE.
Yifeng Zhao   +9 more
doaj   +1 more source

Partial discharge measurement in solid dielectric of H.V Cross-linked polyethylene (XLPE) submarine cable

open access: yesIndonesian Journal of Electrical Engineering and Computer Science, 2020
<p>A partial discharge described as anon-linear electrical break-down even that happened in a section of insulating area between two conduct which are at different potentials the damage of the insulating material, these conductors have a different insulating material potential of damage, under AC voltage discharge interval process. In this paper,
Rasha Abdul-nafaa Mohammed   +2 more
openaire   +2 more sources

Influence of non-sinusoidal voltages on electromechanical stresses in cross-linked polyethylene insulation with micro-defects of power electrical cables

open access: yesElectrical engineering & Electromechanics
Introduction. Power cables with cross-linked polyethylene (XLPE) insulation have significant advantages over traditional oil-filled ones, which have led to their widespread use in high-power electrical networks of all developed countries.
A. A. Shcherba   +4 more
doaj   +1 more source

Research and Development of 66 kV Water Tree Retardant XLPE Light Insulated Submarine Cable

open access: yesZhongguo dianli, 2020
This paper introduces the development method of a light submarine cable with rated voltage of 66 kV and water tree retardant cross linked polyethylene insulation(XLPE).
Guo CHEN   +6 more
doaj   +1 more source

Wave‐Velocity‐Based Temperature Monitoring Applied to Underground Power Cables in Medium‐Voltage Networks—Discrimination of Individual Cable Temperatures in a Distribution Grid

open access: yesHigh Voltage, EarlyView.
ABSTRACT The thermal state of underground power cables can be monitored based on the temperature dependency of the dielectric permittivity of the insulation material. The resulting temperature‐dependent wave velocity is used as a thermometric property. To this end, the signal propagation time along a cable of an injected signal is determined.
Peter Wouters   +2 more
wiley   +1 more source

Significantly enhanced DC breakdown strength and high‐temperature resistivity of cross‐linked polyethylene through alloying polystyrene strategy

open access: yesHigh Voltage
Developing a stable insulation material stands as a crucial challenge for high‐voltage direct current (HVDC) cable insulation. This work proposes an alloying strategy to significantly enhance the breakdown strength and high‐temperature resistivity of ...
Muneeb Ahmed   +6 more
doaj   +1 more source

An Overview of High‐Temperature Superconducting Cables in DC Systems: Unlocking Potential for High‐Voltage DC Networks

open access: yesHigh Voltage, EarlyView.
ABSTRACT This paper provides an overview of high‐temperature superconducting (HTS) cables in DC systems, with a focus on their deployment in high‐voltage DC (HVDC) networks. The assessment of HTS cable properties—such as extremely low electrical resistance, high current‐carrying capacity and a compact geometry—and their comparison with those of ...
Mohammad Hossein Mousavi   +2 more
wiley   +1 more source

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