Temperature dependent mechanical properties of pressboard in transformer winding structure
Author(s)
Naranpanawe, Lakshitha
Ekanayake, Chandima
Saha, Tapan
Griffith University Author(s)
Year published
2017
Metadata
Show full item recordAbstract
Condition monitoring of power transformer winding clamping system is a topic with timely value and utmost importance. However, lack of understanding of temperature dependency of winding clamping system has prevented the development of reliable condition monitoring techniques to estimate the condition of power transformer winding structure. This paper presents the results of a FEM based simulations combined with laboratory investigations conducted to understand the temperature dependency of power transformer winding clamping pressure. Base on laboratory investigations and simulation results, it was found that power transformer ...
View more >Condition monitoring of power transformer winding clamping system is a topic with timely value and utmost importance. However, lack of understanding of temperature dependency of winding clamping system has prevented the development of reliable condition monitoring techniques to estimate the condition of power transformer winding structure. This paper presents the results of a FEM based simulations combined with laboratory investigations conducted to understand the temperature dependency of power transformer winding clamping pressure. Base on laboratory investigations and simulation results, it was found that power transformer winding clamping pressure is temperature dependent. Further, even though presented simulation results showed a good agreement with laboratory test results, comprehensive investigation of thermal expansion coefficient and thermal conductivity of pressboard is essential to improve the accuracy of FEM simulations.
View less >
View more >Condition monitoring of power transformer winding clamping system is a topic with timely value and utmost importance. However, lack of understanding of temperature dependency of winding clamping system has prevented the development of reliable condition monitoring techniques to estimate the condition of power transformer winding structure. This paper presents the results of a FEM based simulations combined with laboratory investigations conducted to understand the temperature dependency of power transformer winding clamping pressure. Base on laboratory investigations and simulation results, it was found that power transformer winding clamping pressure is temperature dependent. Further, even though presented simulation results showed a good agreement with laboratory test results, comprehensive investigation of thermal expansion coefficient and thermal conductivity of pressboard is essential to improve the accuracy of FEM simulations.
View less >
Conference Title
2017 IEEE CONFERENCE ON ELECTRICAL INSULATION AND DIELECTRIC PHENOMENON (CEIDP)
Subject
Electronics, sensors and digital hardware not elsewhere classified