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Investigation of tr...
Investigation of transformer top-oil temperature considering external factors
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Arifianto, I. (author)
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Josue, F. (author)
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Saers, R. (author)
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- Rosenlind, Johanna (author)
- KTH,Elektroteknisk teori och konstruktion
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- Hilber, Patrik (author)
- KTH,Elektroteknisk teori och konstruktion
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(creator_code:org_t)
- IEEE, 2012
- 2012
- English.
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In: Condition Monitoring and Diagnosis (CMD), 2012 International Conference on. - : IEEE. - 9781467310208 ; , s. 198-201
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Standard estimation of top-oil temperature uses a thermal model related to load changes and variation of ambient temperature. Attempts have been done to improve the accuracy of top-oil temperature calculations by introducing internal properties into the model i.e. oil viscosity and winding resistance. The interest of this paper is to investigate the effect of external factors on top-oil temperature by looking into the weather, i.e. wind velocity. The results are compared with measurements on a 63MVA-ONAF 55/140 kV transformer unit, which is operated in ONAN cooling mode. The unit is located in subarctic climate, and it is equipped with a monitoring system and a weather station.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Keyword
- external factors
- monitoring
- power transformer
- thermal model
- top-oil temperature
- wind velocity
Publication and Content Type
- ref (subject category)
- kon (subject category)
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