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High Voltage, 2018 Due to excellent anti-pollution flashover performance, a composite insulator has become the most frequently and widely used insulator product in transmission lines.
Sida Zhang, Ruijin Liao, Lijun Yang
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Installing insulation jacket to improve outdoor insulation performance of composite insulator
IEEE Transactions on Dielectrics and Electrical Insulation, 2011In the paper, a new approach is proposed to improve the outdoor insulation properties of transmission lines. It is achieved by installing the insulation jackets and additional grading rings onto transmission line conductors. The impact of insulation jacket parameters on the electrical field distribution along a 220 kV composite insulator was simulated ...
Hongwei Mei +5 more
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Polyphenylsulfone-hBN Composite Insulation
2020 IEEE 3rd International Conference on Dielectrics (ICD), 2020The goal of this work was to develop and characterize high-temperature, thermally conductive electrical insulation to improve thermal management in high power density electric motors. Polyphenylsulfone (PPSU) films were extruded with up to approximately 24 wt% of either micro-sized hexagonal boron nitride (hBN) or a mixture of micro-and nano-sized hBN ...
Tiffany Williams +2 more
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Swedish research on the application of composite insulators in outdoor insulation
IEEE Electrical Insulation Magazine, 1995Swedish research on the use of composite insulators in outdoor insulation focuses on investigations in natural and artificial conditions, new diagnostic test methods, and the effects of ageing and hydrophobicity variations. Basic flashover phenomena on hydrophobic surfaces also are being studied. >
S. Gubanski, R. Hartings
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Hydrophobicity and insulated resistance of composite insulators with biological contamination
2016 IEEE International Conference on High Voltage Engineering and Application (ICHVE), 2016Biological growth has been observed on insulators installed all over the world. However its impact on the electrical performance is not well known. This paper described the investigations on the performance of post insulators with biological growth at a converter station. Both the ceramic and composite insulators were investigated.
Gulin Xia +4 more
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Epoxy composites for insulating properties
2015 IEEE Electrical Insulation Conference (EIC), 2015Among materials used for electrical insulation in power electronics systems like IGBT, silicone elastomers used are considered as good candidates but are limited to 180–200°C. In this work, new thermoset/thermoplastic composites are investigated. The addition of some thermoplastics to epoxy amine systems can lead to system exhibiting phase separation ...
N. Halawani +3 more
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2013
In contrast to composite long rods, composite post insulators are subjected mainly to loads which act perpendicular to the longitudinal axis of the insulator and thus produce bending stresses over the cross-section of the insulator. As a result of this bending load, composite post insulators use FRP rods of substantially greater diameter compared to ...
Konstantin Papailiou, Frank Schmuck
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In contrast to composite long rods, composite post insulators are subjected mainly to loads which act perpendicular to the longitudinal axis of the insulator and thus produce bending stresses over the cross-section of the insulator. As a result of this bending load, composite post insulators use FRP rods of substantially greater diameter compared to ...
Konstantin Papailiou, Frank Schmuck
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2023
An electrically insulating gas composition comprises C3F7CN, in an amount between 22% and 70% by volume and one or more inert gas selected from the list consisting of nitrogen, carbon dioxide (CO2), air and argon.
Chen, Tony +3 more
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An electrically insulating gas composition comprises C3F7CN, in an amount between 22% and 70% by volume and one or more inert gas selected from the list consisting of nitrogen, carbon dioxide (CO2), air and argon.
Chen, Tony +3 more
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Characteristics of Composite Insulation: Liquid-Impregnated Insulation
IEEE Transactions on Electrical Insulation, 1986A description is given of composite insulation, i. e. swelling of polymers by oil, oil streaming electrification of solid dielectrics , and V-t characteristics of LN2-impregnated insulation due to partial discharge. Swelling can be accelerated by ultrasonic wave irradiation. This reduces the saturation time.
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Development of composite insulators in China
IEEE Transactions on Dielectrics and Electrical Insulation, 1999The development of composite insulators in China dates back to the early 1970's. In the 1990's they have become widely used in China. At present, up to 600000 composite insulators are operating on 35 to 500 kV ac overhead transmission lines. They are to be introduced into the 500 KV HVDC transmission schemes.
null Liang Xidong +3 more
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