Results 71 to 80 of about 560,992 (202)

Monitoring insulator contamination level under dry condition with a microwave reflectometer [PDF]

, 2015
Build-up of surface contamination on high voltage insulators can lead to an increase in leakage current and partial discharge, which may eventually develop into flashover.
McMeekin, Scott, Wilson, A., Yan Jiang, Wilson, Alan, Judd, M., Azam Nekahi, Reid, Alistair, Judd, Martin, Martin D. Judd, Jiang, Y., Alan Wilson, Nakahi, A., Scott G. McMeekin, Nekahi, Azam, Jiang, Yan, Alistair J. Reid, McMeekin, S.   +16 more
core   +1 more source

Enhanced High-Voltage Power Line Insulator and Contamination Classification using Score-Level Fusion [PDF]

High-voltage (HV) power line insulators are critical for grid reliability, but their performance degrades due to contamination (e.g., salt, soot, excrement). Traditional visual inspection methods are subjective, risky, and time-consuming.
Bhusari, Balu, Balkhande, Balasaheb, Jadhav, Akshay   +2 more
core  

Electrical and magnetic properties of n-Cd(_1-x)Mn(_x) Te close to the metal-insulator transition [PDF]

, 2001
Electrical transport and magnetic measurements have been made on n-Cd(_1-x)Mn(_x) Te (0.047 50 mT) Efros-Shklovskii variable range hopping is observed in the insulating phase.
Read, D.E., Read, Daniel Edward
core  

Preservation of pristine Bi2Te3 thin film topological insulator surface after ex situ mechanical removal of Te capping layer

APL Materials, 2016
Ex situ analyses on topological insulator films require protection against surface contamination during air exposure. This work reports on a technique that combines deposition of protective capping just after epitaxial growth and its mechanical removal ...
C. I. Fornari, P. H. O. Rappl, S. L. Morelhão, T. R. F. Peixoto, H. Bentmann, F. Reinert, E. Abramof   +6 more
doaj   +1 more source

Contamination Assessment and Reduction Project (CARP), Summary of Accomplishments and Findings

, 2007
The document was created for the Contamination Assessment and Reduction Project (CARP) November 2007 Conference and provides background information about the project and a summary of its accomplishments and findings.

core   +1 more source

Thermal image, partial discharge and leakage current correlation of ceramic insulator under different contamination level [PDF]

, 2017
This paper reports correlation on leakage current and thermograph infrared (IR) images of the ceramic outdoor insulator for the condition based monitoring purposes.
Abral, H., Ahmad, M. H., Arief, S., Darwison, Darwison, Hazmi, A., Aulia, Aulia   +5 more
core  

Hierarchical Deep Feature Fusion for High-Voltage Insulator Contamination Diagnosis

IEEE Access
The image-based identification of surface contamination on high-voltage insulators may support preventive inspection and maintenance. Existing deep learning approaches frequently employ single-stage classification, which can make it difficult to ...
Ahmet Cifci, Gurkan Bilgin
doaj   +1 more source

Development of mathematical relation between ESDD and wind velocity for a contaminated insulator in Malaysia [PDF]

, 2000
Insulator contamination has been identified as the most important design parameter for external insulation of the high voltage network systems. Wind and electrostatic field plays an important role in transporting and depositing of that contamination over
Buntat, Z, Budin, Razali, Ahmad, H, Tamsir, T, Abdus Salam, M., Piah, M.A.M, Ahmad, A.S, Saadom, Z, Abdul Salam, M, Fuad, S.A, Saadom, Zulkiply, Budin, R   +11 more
core  

Contamination effects on charge distribution measurement of high voltage glass insulator string

, 2017
It is certain that accumulated charge greatly enhances the local electric field distribution of insulator and may lead to breakdown even under nominal voltage.
Z. Adzis, Piah, M. A. M., M.A.M. Piah, Othman, N. A., Adzis, Z., N.A. Othman   +5 more
core   +1 more source

High voltage insulator contamination level online monitoring with conventional and novel methods

, 2016
Conventional online monitoring techniques used for monitoring the levels of contamination on high voltage insulators, such as leakage current and partial discharge, are not effective in dry conditions since they require the surface of the insulator to be
Jiang, Y., Wilson, A., Nakahi, A., Judd, M., Reid, Alistair, McMeekin, S., Judd, Martin D., Yan Jiang, Wilson, Alan, Azam Nekahi, Martin D. Judd, Alan Wilson, Scott G. McMeekin, McMeekin, Scott G., Reid, Alistair J., Nekahi, Azam, Alistair J. Reid, Jiang, Yan   +17 more
core   +1 more source