State-of-the-art review on the performance of cellulosic dielectric materials in power transformers: Mechanical response and ageing
Power transformers are essential elements in electrical systems and the end of their useful
life is frequently conditioned by the state of the cellulosic insulation materials inside them …
life is frequently conditioned by the state of the cellulosic insulation materials inside them …
Analyzing Transformer Insulation Paper Prognostics and Health Management: A Modeling Framework Perspective
In the era of Industry 4.0, digital transformation has spurred the swift advancement of
technologies, including intelligent predictive maintenance scheduling, prognostics and …
technologies, including intelligent predictive maintenance scheduling, prognostics and …
Influence of moisture dependency of pressboard on transformer winding clamping pressure
Short circuit (SC) strength of a power transformer is influenced by its winding clamping
pressure. The required level of clamping pressure is selected at the design stage based on …
pressure. The required level of clamping pressure is selected at the design stage based on …
A 3D in-situ investigation of the deformation in compressive loading in the thickness direction of cellulose fiber mats
Fiber mat materials based on cellulose natural fibers combines a useful set of properties,
including renewability, stiffness, strength and dielectric insulation, etc. The dominant in …
including renewability, stiffness, strength and dielectric insulation, etc. The dominant in …
On the transient out-of-plane behaviour of high-density cellulose-based fibre mats
O Girlanda, DD Tjahjanto, S Östlund… - Journal of Materials …, 2016 - Springer
High density cellulose-based materials have been widely used for electrical insulation and
(interior) construction or structural material. Similar to typical paper/board materials, the …
(interior) construction or structural material. Similar to typical paper/board materials, the …
On-line direct clamping pressure monitoring of power transformer windings
I Madshaven, L Lundgaard, H Enoksen… - 2022 7th …, 2022 - ieeexplore.ieee.org
This paper presents a novel system for measuring the clamping pressure of transformer
windings. The clamping pressure is essential for the integrity of a transformer during short …
windings. The clamping pressure is essential for the integrity of a transformer during short …
Analysis of the Micromechanical Deformation in Pressboard performed by X-ray Microtomography
O Girlanda, F Sahlén, T Joffre… - 2015 IEEE Electrical …, 2015 - ieeexplore.ieee.org
A large number of electrical insulation components are produced in paper-based materials.
Paper combines good insulating properties with the necessary mechanical and chemical …
Paper combines good insulating properties with the necessary mechanical and chemical …
Multiscale Approach to Studying Biomolecular Interactions in Cellulose–Casein Adhesion
Casein finds application as an eco-friendly adhesive for paper, wood, glass, etc. Casein
being a protein can undergo conformational and microstructural changes during various …
being a protein can undergo conformational and microstructural changes during various …
Modeling and experimental validation of the mechanical behavior of pressboard
O Girlanda, DD Tjahjanto, S Östlund… - 2014 IEEE Electrical …, 2014 - ieeexplore.ieee.org
High density (HD) pressboard is an essential element in power transformers combining
good electrical insulation properties with effective mechanical characteristics that well suit …
good electrical insulation properties with effective mechanical characteristics that well suit …
Prediction of the progressive loss of winding clamping pressure in power transformers
S Gao, J Zhao, L Meng, H Liu - Mathematical Problems in …, 2020 - Wiley Online Library
This paper investigates the progressive loss of winding clamping pressure resulted from
thermal aging in power transformers. Firstly, out‐of‐plane stress‐strain characteristics of …
thermal aging in power transformers. Firstly, out‐of‐plane stress‐strain characteristics of …