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Effect of Humidity ...
Effect of Humidity on Charge Accumulation on Polymer-Air Interfaces under DC Stress
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- Svensson, Daniel (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Kumara, Sarath, 1979 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Hjortstam, Olof, 1967 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Serdyuk, Yuriy, 1963 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2022
- 2022
- English.
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In: ICD 2022 - IEEE 2022 4th International Conference on Dielectrics, Proceedings. ; , s. 498-501
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https://doi.org/10.1...
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Abstract
Subject headings
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- Accumulation of charge on polymer-air interfaces stressed with DC voltage has been studied under variable relative humidity (RH). In the experiments, a flat polymeric sample was placed on a grounded copper plate and its open surface was charged by applying a DC voltage to a rod electrode positioned above its center. The charging took place inside a sealed box where relative humidity was fixed by inserting various saturated salt solutions at room temperature. During charging, surface potential distributions were measured at 15 min intervals using a capacitive probe. It was found that the charging became significant at 40% RH for positive polarity and at 51% RH for negative polarity. Above these values, the initial charging rate increased exponentially with relative humidity, and it was substantially greater for positive polarity.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Annan materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Other Materials Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Keyword
- surface charging, humidity, hvdc insulation
Publication and Content Type
- kon (subject category)
- ref (subject category)
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