Oil-immersed transformer is one of the most important electrical equipment in power
distribution and transmission systems. Dielectric response method is a well-recognized …

The diffusion of water and organic acids in insulation affects each other. This effect is more
complicated for the situation of nano-SiO 2 modified insulating oil than for traditional oil …

Corrugated wall distribution transformers (CWDTs) are one of the momentous and
expensive equipment for power systems, and their failure has a negative impact on the …

Adopting dry-type on-board traction transformer (OBTT) is one of the main ways to reduce
the weight of electric traction systems, and its thermal characteristics are crucial for the safe …

With the rapid development of China's high-speed railway (HSR), large-scale traction
transformers have been put into use. In order to realize the batch prediction of hot-spot …

Transformer plays a vital role in grids and its internal hot-spot temperature is a crucial
monitoring parameter. In this paper, three groups of temperature rise tests with the load rate …

In order to dig out more potential of design parameters besides nameplate information, a set
of pre-physical modeling methods was proposed and integrated into the dynamic thermal …

Velocity of the acoustic signal generated by partial discharge (PD) in the transformer is
considerably affected by temperature. Because of thermosiphon effect, the internal …

Temperature distribution in the power transformers is investigated in this study under
Geomagnetically Induced Current (GIC) conditions. Thermal stress can significantly reduce …

In the energy distribution networks, the most important and valuable equipment is oil‐
immersed distribution transformers. Besides, due to the key role of these transformers and …