Results 91 to 100 of about 139,328 (210)

Electrical treeing in XLPE insulation in frequency range between 20 and 500 Hz

open access: yes, 2005
Electrical tree is one of the main reasons for long term degradation of polymeric materials used in high voltage ac applications. In this paper we report an investigation of electrical tree growth characteristics in XLPE samples from a commercial XLPE ...
Tham, C H, Chen, G
core   +1 more source

ESTIMATION OF INDUCED CURRENTS IN THE SHIELDS OF ELECTRICAL POWER CABLES WITH XLPE INSULATION

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2015
Electrical power cables with Cross-Linked Polyethylene Insulation (XLPE-insulation) are currently utilized in projects of the electric-power supply systems of modern facilities.
I. V. Oleksyuk
doaj  

Numerical Modeling of the Electric Field and the Potential Distributions in Heterogeneous Cavities inside XLPE Power Cable Insulation [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2016
The XLPE power cable is easily affected by heterogeneous cavities: air void cavity, vented and bow-tie water trees. In this paper, we present a numerical modeling of this cable.
KHOUILDI Emna   +2 more
doaj  

Assessing moisture content in XLPE power cables using frequency-dependent tangent delta measurements

open access: yesMaterials Research Express
The reliability of cross-linked polyethylene (XLPE)-insulated power cables, mostly used for electricity distribution and transmission in urban areas, is often compromised due to the lack of effective condition-based monitoring systems.
Babu Naik Gugulothu   +4 more
doaj   +1 more source

Analysis of Deterioration Characteristics of Service-Aged XLPE Cables According to Installation Location of Combined Heat and Power Plant

open access: yesEnergies
The number of XLPE cables being used near or beyond their design life is increasing. The importance of timely cable replacement is necessary. Therefore, research is actively being conducted using VLF Tan δ diagnostic technology to assess the insulation ...
Ho-Seung Kim, Jiho Jung, Bang-Wook Lee
doaj   +1 more source

Treeing phenomenon of thermoplastic polyethylene blends for recyclable cable insulation materials

open access: yesAIP Advances, 2017
Owing to its good recyclability and low processing energy consumption, non-crosslinked polyethylene blends (e.g. LLDPE-HDPE blends) are considered as one of potential environmental-friendly substitutions for crosslinked polyethylene (XLPE) as cable ...
Lunzhi Li   +6 more
doaj   +1 more source

“Mirror Image Effect” Space Charge Distribution in XLPE Power Cable under Opposite Stressing Voltage Polarity

open access: yes, 2005
The paper presents space charge distributions under opposite voltage polarities in full size cross-linked polyethylene power cables using the pulsed electro-acoustic technique.
Fothergill, J C, Fu, M, Chen, G
core   +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

Effect of Cross-Linking on the Electrical Properties of LDPE and its Lightning Impulse Ageing Characteristics

open access: yes, 2011
Cross-linked polyethylene (XLPE) is commonly used within high voltage cable insulation. It has improved thermal and mechanical resistance compared to normal low density polyethylene (LDPE).
Dao, N L, Swingler, S G, Lewin, P L
core   +1 more source

Electric field determination of polymeric dc power cable in the presence of space charge

open access: yes, 2007
Space charge in polymeric power cables has been previously measured by the pulsed electroacoustic (PEA) technique and its influence on electric field distribution has been estimated assuming that the conductivity is independent of electric field. In this
Choo, W, Fu, M, Chen, G
core   +1 more source

Home - About - Disclaimer - Privacy