Model Based Experimental Determination of Moisture Content in Oil-Paper Insulation System Using FDS Technique

Author(s):  
Yogesh Yashwant Pundlik ◽  
Pradeep M. Nirgude
2014 ◽  
Vol 644-650 ◽  
pp. 3548-3551 ◽  
Author(s):  
Jin Fu ◽  
Jian Hao ◽  
Hua Yin ◽  
Gao Lin Wu ◽  
Qian Wang

Moisture has a detrimental effect on oil-paper insulation life by lowering electrical breakdown strength. How does the space charge behavior of the oil-paper insulation system consisted by oil gap and oil immersed insulation pressboard with different moisture content? The space charge characteristics of the mixed insulation consisted of oil gap and pressboard with three moisture content were investigated using the PEA measurement system. The space charge accumulation behaviors at the interface between oil gap and pressboard were analyzed. The distortion of the electrical field in the oil gap and pressboard was also analyzed. Results show that there are many charges injected into the oil and the pressboard. The charges accumulated at the interface between oil gap and pressboard. The charges accumulated in the mixed insulation system become less with the moisture content increased. The difference of the electric field strength in the oil gap and pressboard become smaller with the moisture content increased.


2020 ◽  
Vol 179 ◽  
pp. 106070
Author(s):  
Mehmet Bircan ◽  
Ali Durusu ◽  
Bedri Kekezoglu ◽  
Onur Elma ◽  
Ugur Savas Selamogullari

2015 ◽  
Vol 1122 ◽  
pp. 153-156
Author(s):  
Jozefa Lukovičová ◽  
Gabriela Pavlendová ◽  
Stanislav Unčík

The problem of the reconstruction of the historical building surface layers is in material compatibility. The basics of the convenient choice of materials for reconstruction is understanding some physical properties of used materials. The crucial properties are moisture and temperature induced deformation. The effect of moisture sorption on the elastic behavior of innovative plaster for renovation is investigated. The measurements are performed for moisture content from the dry state to the saturation water content and temperature range of 10 - 40°C.


1999 ◽  
Vol 96 (6) ◽  
pp. 1111-1116 ◽  
Author(s):  
E. Falcon ◽  
S. Fauve ◽  
C. Laroche

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