Results 21 to 30 of about 208,097 (225)
Anomalous flashovers of silicone rubber insulators under the artificial rain test [PDF]
Archives of Electrical Engineering, 2021 The wet flashover voltage of medium voltage insulators made of a silicone rubber is 8% lower than the wet flashover voltage of a porcelain insulator with an identical profile. These surprising results, obtained in 2012, were confirmed again in 2019.
Krystian Leonard Chrzan +1 more
doaj +1 more source
Analysis of Influencing Factors on Electric Field Distribution of 500 kV Porcelain Insulators
Journal of Physics: Conference Series, 2023 With the upsurge of the digital twin power grid, it is very necessary to carry out a three-dimensional model and simulation analysis of the power grid system.
Kai Dong +5 more
semanticscholar +1 more source
Measurement science and technology, 2022 In this paper, a noncontact load monitoring method based on laser-induced synchronous ultrasonic surface wave and air wave is presented to improve the accuracy of load measurement on pillar porcelain insulator. In order to eliminate the measurement error
Zhoufeng Zhao +7 more
semanticscholar +1 more source
Feasibility study on application of microwave radiometry to monitor contamination level on insulator materials [PDF]
, 2016 This paper introduces a novel method for monitoring contamination levels on high voltage insulators based on microwave radiometry. Present contamination monitoring solutions for high voltage insulators are only effective in predicting flashover risk when
Jiang, Y. +5 more
core +2 more sources
Analysis of Thermal Sensitivity by High Voltage Insulator Materials
IEEE Access, 2020 Insulators serve bi-fold objectives of holding the conductor and electrical segregation from the grounded structure. For reliable operation of utility, electrical and mechanical strength of insulators are equally significant.
Taeyong Kim +5 more
doaj +1 more source
Monitoring contamination level on insulator materials under dry condition with a microwave reflectometer [PDF]
, 2016 Current techniques used for monitoring the levels of contamination on high voltage insulators, such as leakage current and infrared, are not effective in dry conditions since they require the surface of the insulator to be wetted by fog, rain or snow. If
Jiang, Y. +5 more
core +1 more source
Production of Electrical Porcelain Insulators from Local Raw Materials: A Review
Clay and Clay Minerals [Working Title], 2021 This paper reviewed the production of electric porcelain insulators utilizing from local raw materials from developing countries. The raw materials used were feldspar, quartz/silica and kaolin. The chemical composition, mineralogy, and thermal properties
U. Ekpunobi +12 more
semanticscholar +1 more source
Influence of single and multiple dry bands on critical flashover voltage of silicone rubber outdoor insulators: simulation and experimental study [PDF]
, 2018 Dry band formation on the surface of outdoor insulators is one of the main reasons leading to flashover and power outages. In this paper, a dynamic arc model is proposed for single and multiple dry bands configuration to predict the critical flashover ...
Arshad, Arshad +4 more
core +4 more sources
Acta Mechanica Slovaca, 2021 Porcelain insulators are mostly created from the combination of the particles of Clay, Silica, Kaolin, and Feldspar. This implies that different particle sizes contribute to the insulating properties of the materials.
T. Ologunwa +6 more
semanticscholar +1 more source
High-Tension Insulator Porcelain [PDF]
Transactions of the American Institute of Electrical Engineers, 1920 Porcelain used in the manufacture of high-tensioin insulators must meet certain requirements as to mechanical strength, ability to resist, sudden changes of temperature, porosity, homogeneitv and temperature, coefficient of resistivity. A further suggestion as to the influences of the Piezo electric effect and the deterioration of seemingly perfect ...
openaire +1 more source