Introduction The failure of transformers can result in safety issues and economic losses. Although FRA is widely used to detect mechanical winding deformation, the success of this technique lies in …
Interpreting First Anti-Resonance of FRA Responses through Low Frequency Transformer Modelling Read MoreThe prebreakdown and breakdown phenomenon in liquids is termed as ‘Streamer’. To better understand the mechanism of liquid breakdown, we need to have deep insights into the streamer process, which …
Magic to visualise the invisible: a comparison on the optical methods to visualise streamers in insulating liquids Read MorePartial discharge (PD) detection is commonly used for power transformer diagnosis. During PD process, electromagnetic emission, acoustic emission and optical emission can be detected, associated with chemical traces left simultaneously …
Beat the Detection Limit of Partial Discharge Acoustic Emission within Transformer by the Use of Fiber Optic Sensor Read MoreIntroduction Transformer tank vibration mainly originates from the core and windings vibration, and they can be easily acquired. Therefore, the vibroacoustic signals of a transformer tank are widely adopted to …
Investigation on Vibration Generation and Transmission Characteristics in Power Transformers Read MoreDetermination and optimisation of the winding hot-spot temperature is essential for managing the loading capability and thermal ageing of transformers. The liquid flow in the various winding cooling ducts directly …
Liquid Flow Distribution in Oil Directed Cooled Disc Type Transformer Windings Read MoreThe world’s first synthetic ester filled 400 kV, 240 MVA power transformer is to be connected to the UK transmission network, a great achievement in the perspective of going ‘green’ …
Ageing Assessment of Non Thermally Upgraded Transformer Paper Insulation Impregnated with Synthetic Ester Read More