Results 81 to 90 of about 827 (204)

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

open access: yesJournal 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   +1 more
doaj   +1 more source

DC Flashover Performance of Various Types of Ice-Covered Insulator Strings under Low Air Pressure

open access: yesEnergies, 2012
In this study, icing flashover performance tests of typical DC porcelain, glass, and composite insulators are systematically carried out in a multifunction artificial climate chamber.
Lichun Shu   +5 more
doaj   +1 more source

BERYL AS A CONSTITUENT IN HIGH TENSION INSULATOR PORCELAIN [PDF]

open access: yesJournal of the American Ceramic Society, 1922
ABSTRACT Two series, one of 9 bodies and one of 6, were prepared, in which flint and feldspar were partially replaced, weight for weight, by beryl. Bars and discs were fired to cone 8 3/4, to 10, or to 10 3/4 and tested for shrinkage, transverse strength, impact strength, heat resistance ...
openaire   +2 more sources

Comparison on space charge and voltage distribution of high voltage insulator subjected to different contamination levels [PDF]

open access: yes, 2019
This paper presents the study of space charge distribution on high voltage (HV) insulators under different levels of contamination. Two types of HV insulators were used in this work particularly glass and porcelain insulators.
N. A. Samuri   +11 more
core   +1 more source

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

open access: yes, 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

Structural Performance of Porcelain Insulators in Overhead Railway Power Systems: Experimental Evaluations and Findings

open access: yesInfrastructures
This paper addresses the critical knowledge gap in the structural performance of porcelain insulators in overhead railway power systems through experimental evaluations. The focus is on porcelain insulators as part of a contact wire registration assembly
Pablo Agüero-Barrantes, Alexandra Hain
doaj   +1 more source

Insulator Detection in Aerial Images for Transmission Line Inspection Using Single Shot Multibox Detector

open access: yesIEEE Access, 2019
The detection of insulators with cluttered backgrounds in aerial images is a challenging task for an automatic transmission line inspection system. In this paper, we propose an effective and reliable insulator detection method based on a deep learning ...
Xiren Miao   +5 more
doaj   +1 more source

AC flashover performance of different shed configurations of composite insulators under fan-shaped non-uniform pollution

open access: yesHigh Voltage, 2018
Currently, it is founded that under unidirectional wind and certain landform, composite insulators are always fan-shaped non-uniformly polluted. In this paper, artificial pollution tests on three types of composite insulators with different shed ...
Zhijin Zhang   +5 more
doaj   +1 more source

Microstructural analysis and of mechanical and durability properties of mortars and concretes with porcelain electric insulator [PDF]

open access: yes, 2018
Orientador: Vladimir Antonio PaulonTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Civil, Arquitetura e UrbanismoResumo: Pesquisas para utilização de materiais reciclados e/ou inservíveis da construção civil em seus insumos,
Campos, Marco Antonio
core  

EXPERIMENTAL STUDY FOR PERFORMANCE EVALUATION OF INSULATOR USING VARIOUS COATING MATERIALS UNDER DIFFERENT ATMOSPHERIC CONDITIONS

open access: yes, 2017
In this study, we have an insulator is subjected to high voltage under various atmospheric condition. Without porcelain and asbestos coatings to judge the performance and with porcelain and asbestos coatings to judge the performance of electrical ...
Akshay Singh Thakur, Prof. Arun Pachori
core   +1 more source

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