Moisture and temperature effects on power transformer winding clamping pressure

Naranpanawe, Lakshitha, Saha, Tapan and Ekanayake, Chandima (2016). Moisture and temperature effects on power transformer winding clamping pressure. In: Asia-Pacific Power and Energy Engineering Conference, APPEEC. 2016 IEEE PES Asia Pacific Power and Energy Engineering Conference, APPEEC 2016, Xian, China, (74-78). 25 - 28 October 2016. doi:10.1109/APPEEC.2016.7779473


Author Naranpanawe, Lakshitha
Saha, Tapan
Ekanayake, Chandima
Title of paper Moisture and temperature effects on power transformer winding clamping pressure
Conference name 2016 IEEE PES Asia Pacific Power and Energy Engineering Conference, APPEEC 2016
Conference location Xian, China
Conference dates 25 - 28 October 2016
Convener IEEE
Proceedings title Asia-Pacific Power and Energy Engineering Conference, APPEEC
Journal name Asia-Pacific Power and Energy Engineering Conference, APPEEC
Place of Publication Piscataway, NJ, United States
Publisher Institute of Electrical and Electronics Engineers
Publication Year 2016
Sub-type Fully published paper
DOI 10.1109/APPEEC.2016.7779473
Open Access Status Not yet assessed
ISBN 9781509054183
ISSN 2157-4847
Volume 2016-December
Start page 74
End page 78
Total pages 5
Collection year 2017
Language eng
Abstract/Summary This paper presents findings from a finite element modelling based simulation study conducted to understand the moisture and temperature dependency of power transformer winding clamping pressure. Set of laboratory experiments were used to measure moisture dependent mechanical properties of high-density pressboard. First, 400 kVA disc type transformer winding was simulated to separately study the effects of moisture and temperature on clamping pressure. After that, fluctuations in clamping pressure under the combined effects of moisture and temperature of a field-installed autotransformer were studied. Simulation results revealed that winding clamping pressure is highly dependent on both temperature and moisture content. Finally, it was concluded that inclusion of moisture and temperature effect is important when analysing the results of winding clamping pressure estimation techniques.
Keyword High-density pressboard
Moisture
Progressive loss of winding clamping pressure
Temperature
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ

 
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