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Flashovers of Suspension Insulators Due to Contamination
Transactions of the American Institute of Electrical Engineers, 1948Flashover of suspension insulators on steel tower lines, traceable to an accumulation of dirt followed by a deposit of moisture, has been the source of numerous outages of high-voltage transmission lines. The aim of the investigation described in this paper was to determine means of increasing the insulation level of existing lines under fog and dirt ...
H. A. Adler +2 more
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Wetting Processes on a Contaminated Insulator Surface
IEEE Transactions on Power Apparatus and Systems, 1982This paper presents the theoretical aspects and the experimental results of a study carried out at Ecole Polytechnique de Montrdal on wetting processes on a contaminated insulator surface. Four wetting processes for clean-fog test using the precontamination method are distinguished, namely, collision of water droplets with the insulator surface ...
M. Leclerc +3 more
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IEEE International Conference on High Voltage Engineering and Application, 2018
A large amount of CaSO4 is contained in the transmission line insulator contamination under natural conditions, and the CaSO4 in the contamination has an influence on the pollution flashover characteristics and leakage current of the insulator. The tests
Daochun Huang +4 more
semanticscholar +1 more source
A large amount of CaSO4 is contained in the transmission line insulator contamination under natural conditions, and the CaSO4 in the contamination has an influence on the pollution flashover characteristics and leakage current of the insulator. The tests
Daochun Huang +4 more
semanticscholar +1 more source
Qualitative Analysis of Contamination Severity between NaCl and CuSO4 for Outdoor Insulator
2018 IEEE Applied Signal Processing Conference (ASPCON), 2018This paper presents a new criterion for insulator flashover condition prediction based on percentage 5th to 3rd harmonic component. These harmonics are extracted from leakage current of insulator employing FFT.
Sandip Chakraborty +3 more
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Performance of HVDC Insulators under Contaminated Conditions
IEEE Transactions on Electrical Insulation, 1980A review is presented on the performance of outdoor HVDC insulators in a polluting environment. Results from several recent studies have been included. Physical conditions and processes that lead to electrical breakdown are delineated. Both field and laboratory test results are presented to demonstrate the effects of ambient weather conditions and the ...
T. C. Cheng, C. T. Wu
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Accurate measurement of low insulator contamination levels
IEEE Transactions on Power Delivery, 1994The authors describe how accurate estimates of low levels of insulator contamination, in the range of 200 mg/m/sup 2/ (0.02 mg/cm/sup 2/), can only be obtained if several minor errors in conventional surface contamination measurements are corrected. >
W.A. Chisholm, P.G. Buchan, T. Jarv
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New technology to combat with insulator contamination
IEEE/PES Transmission and Distribution Conference and Exhibition, 2003Insulator contamination has been one of the significant subjects in the insulation design of power transmission equipment. The insulator designs and countermeasures against contamination have been studied all over the world, taking both environmental and climatic conditions into consideration. Advanced technology in insulator contamination designs have
K. Takasu, T. Irie
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Flashover on contaminated insulators with different diameters
IEEE Transactions on Electrical Insulation, 1991The influence of the diameter on contamination flashover/withstand voltage of cylindrical insulators was investigated both for AC and DC. The increase in diameter of a cylindrical insulator significantly lowers the contaminated flashover/withstand voltage.
R. Matsuoka +3 more
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Surface characterization of naturally contaminated HVDC insulators
PowerTech Budapest 99. Abstract Records. (Cat. No.99EX376), 2003No contamination related problems were observed during seven years of service on silicone rubber insulators although a large amount of salt containing solid contamination has been deposited on their surface. The contamination layer consisted of solid particles and silicone oil.
G. Besztercey, G.G. Karady, D.L. Ruff
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