A challenging problem in the protection of power transformers is the fault detection and
diagnosis (FDD). FDD has an essential role in the reliability and safety of modern power …

In recent years, vibration signals have been widely applied for the identification of
mechanical states in oil-immersed transformers. This paper, following the framework of …

As an important part of power system, power transformer plays an irreplaceable role in the
process of power transmission. Diagnosis of transformer's failure is of significance to …

On-line monitoring and diagnosis of transformers have been investigated and discussed
significantly in the last few decades. Vibration method is considered as one of the non …

Aged cable segments in underground power distribution systems will gradually develop into
severe faults. The location of aged cable segment is essential for ensuring system reliability …

A common problem in power transformers is the winding defect which is caused by a variety
of internal and external conditions. It is necessary to detect and rectify the winding defect as …

In this article, a new testing method for the diagnosis of winding faults based on the resonant
frequency of the transformer is proposed. The system that consists of the high-voltage dc …

Since the power transformers are indispensable in power systems, their reliable operation
are of significance. Winding deformation is one of the most common failures within …

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

Frequency response analysis is one of the best methods to diagnose mechanical defects in
the power transformer winding. In this paper, sensitivity analysis of four components of the …