Results 171 to 180 of about 208,097 (225)

Defect Detection and Localization Method for Porcelain Insulators Based on Ultrasonic Guided Waves

2024 3rd Asia Power and Electrical Technology Conference (APET)
Porcelain insulators, as external insulating materials, are widely used in high-voltage transmission lines. Therefore, it is of great significance to carry out the research on the nondestructive testing technology of porcelain insulators.
Bingyan Jin, Shengwen Shu, Weiming Chen, Lingfei Li   +3 more
semanticscholar   +1 more source

Anticipating Cleaning Schedules for 22 KV Porcelain Insulators through Leakage Current Analysis with Machine Learning

International Conference on Electrical Engineering and Information Communication Technology
In 22 KV Electricity Distribution networks, the Pin insulators are susceptible to flashovers due to contamination layers formed on the surfaces in industrial and coastal areas.
Devendra Shantaram Patole, B. S
semanticscholar   +1 more source

Porcelain Insulator Inspection Using Infrared Thermography

Sensor Letters, 2020
Inspection with thermography is a non-invasive, non-destructive process used in Power Systems facilities. Most temperature signatures that are not in the visible light range can be measured using thermal cameras, thus enabling the search of thermal behavior of porcelain insulators.
P. I. Lerantzis, P. T. Tsarabaris, N. J. Theodorou   +2 more
openaire   +1 more source

Porcelain for High Voltage Insulators

Transactions of the American Institute of Electrical Engineers, 1936
In this paper the mechanical failure of porcelain is discussed with special reference to 3 seldom recognized characteristics: the effect of the porcelain surface on the strength, the apparent anomalous distribution of individual mechanical test values, and the effect of time on mechanical strength.
openaire   +1 more source

A new porcelain post insulator

Electrical Engineering, 1934
A new porcelain post insulator for transmission lines, which is free from radio effect at its operating voltage, is described in this paper. Capacitance measurements are utilized to determine and rate the radio characteristics. Other points of design are described, such as improved leakage path to resist arcing in contaminated atmosphere, greater ...
openaire   +1 more source

Vacuum Evaporation of Porcelain Mixture in Production of Porcelain Insulators

Glass and Ceramics, 2005
The process of vacuum evaporation of porcelain mixtures on vacuum presses and the ways for improving the production of porcelain insulators are considered. A calculation of unit molding pressure is proposed; the pressure distribution along the press and depending on the moisture of the mixture is indicated.
V. F. Gaivoronskii, A. I. Postoronko
openaire   +1 more source

Mechanical Properties Analysis of Domestic Large Tonnage Porcelain Insulators Based on Operating Load Conditions

2020 IEEE 4th Information Technology, Networking, Electronic and Automation Control Conference (ITNEC), 2020
Porcelain insulators are basic and important insulation components in UHV transmission lines, in which mechanical property deterioration poses serious threat to the operational stability of the power grid. In this paper, the mechanical characteristics of
Song Gao, Yang Liu, Qiang Huang, Yongqiang Wang, Jungang Yin, A. Xu   +5 more
semanticscholar   +1 more source

Investigation of Porcelain Insulators at High Altitudes

Transactions of the American Institute of Electrical Engineers, 1946
The use of high voltage apparatus in military aircraft made it necessary to obtain flashover data on capacitor bushings at altitudes up to 50,000 feet. Some of the more pertinent data are presented in this paper which gives a-c and d-c flashover voltages for porcelain bushings having spacings of 5/8 inch to 2 7/8 inches from cap to ring. The tests were
C. V. Fields, C. L. Cadwell
openaire   +1 more source

Machine molding of porcelain pin insulators

Glass and Ceramics, 1999
A new method for molding porcelain pin insulators used as insulation for cables of low-voltage power lines is suggested. A machine for molding TF-20 inslators is described. A set of technological equipment for mini-production units of low and medium capacity is presented. The technical parameters of the set of machinery are given.
V. A. Aleko, M. V. Popov
openaire   +1 more source

A solution of the porcelain insulator problem

Journal of the American Institute of Electrical Engineers, 1921
MANY YEARS ago porcelain insulators on transmission lines began to crack in great numbers. In the earlier cases a few disks in many strings had cracked before the transmission engineers had discovered the condition. Indeed, there was at that time no reason to believe that insulators would deteriorate in any way.
E. E. F. Creighton, F. L. Hunt
openaire   +1 more source