Results 181 to 190 of about 1,315 (207)
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Electrical Engineering (Archiv fur Elektrotechnik), 2001
This paper describes results of laboratory accelerated aging test and the influence of different aging conditions on non-electrical properties of cross-linked polyethylene insulation (XLPE). Accelerated aging has been carried out on a cable model with different electrical and thermal stresses, and with thermal stresses in air or water as surrounding ...
D. Andjelkovic, N. Rajakovic
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This paper describes results of laboratory accelerated aging test and the influence of different aging conditions on non-electrical properties of cross-linked polyethylene insulation (XLPE). Accelerated aging has been carried out on a cable model with different electrical and thermal stresses, and with thermal stresses in air or water as surrounding ...
D. Andjelkovic, N. Rajakovic
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Dielectric behaviours of cross-linked polyethylene (XLPE) impregnation with compressed SF/sub 6/
Proceedings of 1994 4th International Conference on Properties and Applications of Dielectric Materials (ICPADM), 2002Through comparative tests, the problem of vacuum-impregnation for a length of cable could be overcome by initial granular polyethylene being vacuum-impregnated and cable conductor being filled by compressed SF/sub 6/ after manufacture. For this purpose, the affects of pressure, temperature, voltage wave form and simulation of production process on the ...
null Tu De-Min +2 more
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2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM), 2021
In general, High Voltage Direct Current (HVDC) transmission is primarily used for submarine applications, including to integrate offshore wind farms to land or to transmit large electrical power over long distances across the sea. Typical insulation used within HVDC cables is either Cross-Linked Polyethylene (XLPE) or Low-Density Polyethylene (LDPE ...
N. H. Nik Ali +5 more
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In general, High Voltage Direct Current (HVDC) transmission is primarily used for submarine applications, including to integrate offshore wind farms to land or to transmit large electrical power over long distances across the sea. Typical insulation used within HVDC cables is either Cross-Linked Polyethylene (XLPE) or Low-Density Polyethylene (LDPE ...
N. H. Nik Ali +5 more
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2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM), 2021
Titanium element has been used in different applications such as aerospace and electronics. However, the potential benefits of this element in the electrical application are yet to be explored. Thus, this paper is interested to study the potential of Titanium for insulating materials in terms of dielectric strength enhancement.
A. B. Abd Rahman +7 more
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Titanium element has been used in different applications such as aerospace and electronics. However, the potential benefits of this element in the electrical application are yet to be explored. Thus, this paper is interested to study the potential of Titanium for insulating materials in terms of dielectric strength enhancement.
A. B. Abd Rahman +7 more
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Power Technology and Engineering, 2020
The problem of ensuring the electromagnetic safety of service personnel manifests itself the most seriously in cable tunnels, where the distances between cables with high current loads and the human being is minimal. A computation technique by means of which the magnetic fields of a large number of single-phase cables may be calculated with one- and ...
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The problem of ensuring the electromagnetic safety of service personnel manifests itself the most seriously in cable tunnels, where the distances between cables with high current loads and the human being is minimal. A computation technique by means of which the magnetic fields of a large number of single-phase cables may be calculated with one- and ...
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[Proceedings] 1992 Annual Report: Conference on Electrical Insulation and Dielectric Phenomena, 2003
The authors report the results of TSDC (thermally stimulated discharge current) and TTC measurements of XLPE (cross-linked polyethylene) cables AC aged in water for a period up to 4000 h. Absorption and resorption current measurements were also performed during the aging to get more information about the penetration of water and ions into the cable ...
A. Svatik +3 more
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The authors report the results of TSDC (thermally stimulated discharge current) and TTC measurements of XLPE (cross-linked polyethylene) cables AC aged in water for a period up to 4000 h. Absorption and resorption current measurements were also performed during the aging to get more information about the penetration of water and ions into the cable ...
A. Svatik +3 more
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2018 IEEE 2nd International Conference on Dielectrics (ICD), 2018
This work seeks dielectric indicators of the aged state of cross-linked polyethylene (XLPE) that has been simultaneously irradiated and thermally aged. The XLPE samples studied here were of the same material formulation as XLPE insulation found in RSCC I46-0021 instrumentation cable, formed into tapes with dimensions approximately 20 × 0.7 × 100 mm3 ...
Zhihui Shao +5 more
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This work seeks dielectric indicators of the aged state of cross-linked polyethylene (XLPE) that has been simultaneously irradiated and thermally aged. The XLPE samples studied here were of the same material formulation as XLPE insulation found in RSCC I46-0021 instrumentation cable, formed into tapes with dimensions approximately 20 × 0.7 × 100 mm3 ...
Zhihui Shao +5 more
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1980 IEEE International Conference on Electrical Insulation, 1980
This paper describes fundamental studies into the effects of 1) the thermal properties, and 2) the solid state structure of cross-linked polyethylene on its impulse voltage breakdown stress, as determined by the use of miniaturized cable models. Nine grades of high pressure polyethylene, clarified by molecular structure, are used in the studies.
Teruo Fukuda +5 more
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This paper describes fundamental studies into the effects of 1) the thermal properties, and 2) the solid state structure of cross-linked polyethylene on its impulse voltage breakdown stress, as determined by the use of miniaturized cable models. Nine grades of high pressure polyethylene, clarified by molecular structure, are used in the studies.
Teruo Fukuda +5 more
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2018 IEEE/PES Transmission and Distribution Conference and Exposition (T&D), 2018
High-pressure fluid-filled (HPFF) pipe type cables make up the bulk of the underground transmission lines in North America. These cable systems started to enter commercial operation in the early 1930s and many are now beyond their design life. Although HPFF cables have provided excellent reliability, some now suffer from corrosion, leaks, and failures.
Vincent Curci +2 more
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High-pressure fluid-filled (HPFF) pipe type cables make up the bulk of the underground transmission lines in North America. These cable systems started to enter commercial operation in the early 1930s and many are now beyond their design life. Although HPFF cables have provided excellent reliability, some now suffer from corrosion, leaks, and failures.
Vincent Curci +2 more
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[1991] Proceedings of the 3rd International Conference on Properties and Applications of Dielectric Materials, 2002
The electrical aging behavior of XLPE power distribution cables has been investigated after AC (6 kV/mm) aging in water at room temperature by several techniques, including thermally stimulated discharge current (TSDC) and thermal transient current (TTC), which appear to provide acceptable information on the polarization of the insulator.
D.K. Das-Gupta, A. Svatik, D.E. Cooper
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The electrical aging behavior of XLPE power distribution cables has been investigated after AC (6 kV/mm) aging in water at room temperature by several techniques, including thermally stimulated discharge current (TSDC) and thermal transient current (TTC), which appear to provide acceptable information on the polarization of the insulator.
D.K. Das-Gupta, A. Svatik, D.E. Cooper
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