Results 21 to 30 of about 917 (210)

Performance enhancing of porcelain insulators using low cost micro additives

Ain Shams Engineering Journal
Porcelain have been widely utilized in electrical power system. The enhancement of its properties has positively influenced its behavior thence on overall power system.
Hesham S. Karaman, Sherif M.M. Sherif, S.M.A. El-Gamal, Naser Abdel-Rahim, M.A. Abd-Allah   +4 more
doaj   +2 more sources

Designation of an Indicator for flashover prediction of porcelain and glass insulators based on experimental tests. [PDF]

Journal of Operation and Automation in Power Engineering, 2015
Flashover of polluted insulators in contaminated areas is one of the most important factors influencing the operation of transmission and distribution lines and finally line outages.
Mousalreza faramarzi palangar, mohammad mirzaie   +1 more
doaj   +1 more source

Insulator fault feature extraction system of substation equipment based on machine vision

IET Networks, EarlyView., 2022
Abstract The artificial intelligence technology and intelligent automation are more and more widely used, the insulators play a supporting and insulating role in the operation of the grid. The use of machine vision inspection technology to detect insulator faults has become an inevitable trend of the times.
Keruo Jiang, Qiaoqun Xia, Lijun Ma, Xin Xu, Zhipeng Shao   +4 more
wiley   +1 more source

Research on Leakage Current Waveform Spectrum Characteristics of Artificial Pollution Porcelain Insulator

Frontiers in Energy Research, 2021
The surface discharge development processes of polluted porcelain insulators for power transmission lines are tightly related with the development of leakage current (LC), the characteristics of LC, the insulating condition, and discharge intensity of ...
Chunhua Fang, Yuning Tao, Jianguo Wang, Haixin You, Yan Cui, Mi Zhou   +5 more
doaj   +1 more source

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, Henryk Marek Brzeziński   +1 more
doaj   +1 more source

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, Simpy Sanyal, Ja-Bin Koo, Ju-Am Son, In-Hyuk Choi, Junsin Yi   +5 more
doaj   +1 more source

Comprehensive simulation of snow crystal deposition and electric field characteristics of composite sheath improved porcelain cantilever insulator in a wind and snow environment

Journal of Measurement Science and Instrumentation, 2022
The installed porcelain insulators on existing railway lines in China are prone to "snow flash" in winter. In order to prevent the occurrence of "snow flash" and improve the reliability of the insulators, a composite-porcelain insulator is designed.
SHENG Wangqun, LI Gang, LI Yanzhe, LI Baoxue, ZHAO Shanpeng   +4 more
doaj  

Prediction of pollution flashover voltages of ceramic string insulators under uniform and non-uniform pollution conditions

Journal of Electrical Systems and Information Technology, 2016
Present paper emphasizes on the development of a new mathematical model to estimate the contamination flashover voltages of ceramic string insulators under varying uniform and non-uniform pollution conditions subjected to AC voltages.
Chandrashekhar Badachi, Pradipkumar Dixit   +1 more
doaj   +1 more source

Leakage currents on naturally contaminated porcelain and silicone insulators. [PDF]

, 2012
The leakage current measurements on standard post insulators and on rod insulators without sheds were carried out. The porcelain and silicone rubber insulators were tested at Glogow station under the voltage of 75 kV.
Chrzan, K L
core   +1 more source

‘Reuse of high-alumina C130-type porcelain waste’

Open Ceramics, 2022
The paper presents the technology for reusing high-alumina porcelain waste (HAPW, C130-type) incoming during the production of high-voltage insulators. This waste includes defective products after firing and dismantled old and worn insulators, replaced ...
Jarosław Michałek, Janusz Partyka, Katarzyna Pasiut, Karolina Kaczmarczyk   +3 more
doaj   +1 more source